New optically active camphor-derived cyclopalladated complexes with an asymmetric carbon bonded to the metal
Publication date: Available online 27 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Purna Chandra Rao Vasireddy, Gerard C. Dickmu, Angel Ugrinov, Irina P. SmoliakovaAbstractN,N-Dimethylhydrazone of D-camphor 1 was obtained as the single E isomer in 80% yield by treating the enantiopure ketone with N,N-dimethylhydrazine in the presence of an equimolar amount of p-toluenesulfonic acid in ethanol. Direct cyclopalladation of hydrazone 1 was accomplished at the C(3)H2 group using [Pd(MeCN)2Cl2] and NaOAc in MeCN at the reflux temperature. The product of the reaction, dinuclear cyclopalladated complex 2, was i...
Source: Journal of Organometallic Chemistry - August 28, 2019 Category: Chemistry Source Type: research

Pd nanoparticles stabilized on the Schiff base-modified boehmite: Catalytic role in Suzuki coupling reaction and reduction of nitroarenes
Publication date: Available online 27 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Nuray Yılmaz Baran, Talat Baran, Mahmoud Nasrollahzadeh, Rajender S. VarmaAbstractPalladium nanoparticles (Pd NPs) were decorated on Schiff base-modified boehmite (Sch-boehmite) particles via a simple method without deploying any additional reducing agents and their structure was confirmed by different characterization methods. The ensuing Pd NPs@Sch-boehmite was evaluated as a retrievable catalyst for multiple cycles in Suzuki cross-coupling reactions with extensive substrate tolerance to produce biaryls in high yields ...
Source: Journal of Organometallic Chemistry - August 28, 2019 Category: Chemistry Source Type: research

New class of non-symmetrical homo-dibenzimidazolium salts and their dinuclear Silver(I) di-NHC complexes
Publication date: Available online 23 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Umie F.M. Haziz, Rosenani A. Haque, A.A. Amirul, O.Noor Aidda, Mohd R. RazaliAbstractThis work describes the synthesis of an uncommon non-symmetrical dibenzimidazolium salts as a precursor for the dinuclear Ag(I)–NHC complexes with a formula of [Ag2L2]‧2PF6 (L = NHC = bis-N-heterocyclic carbene). Through the reaction of 3-(2-bromoethyl)-1-butylbenzimidazole bromide (i) with n-alkylbenzimidazole (alkyl = methyl, ethyl, propyl, pentyl, hexyl, heptyl, benzyl), seven non-symmetrical dibenzimidazolium bromi...
Source: Journal of Organometallic Chemistry - August 25, 2019 Category: Chemistry Source Type: research

DFT studies on the Ru-Catalyzed hydrolysis ofAmmonia Borane
Publication date: Available online 22 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Yang Li, Mengwei Hu, Jiasheng Wang, Wan-Hui WangAbstractAmmonia borane (NH3BH3, AB) was a candidate material for hydrogen storage, and hydrolysis of AB was one of the highly potential processes for which three equivalents of hydrogen may be released. In this article, density functional theory calculations were carried out to examine the Ru(II)-catalyzed hydrolysis of AB for releasing three equivalents of hydrogen. The calculation results support that the mechanism for Ru(II)-catalyzed hydrolysis of AB to release of the fi...
Source: Journal of Organometallic Chemistry - August 24, 2019 Category: Chemistry Source Type: research

In search of alkene-diazene cross metathesis
We report here on our efforts to realize alkene-diazene cross metathesis to produce imines. The proven alkene-metathesis catalyst (Cy3P)2Cl2Ru = CHPh (1) reacts with aryl diazenes at room temperature to produce imines derived from coupling of the alkylidene unit of 1 with the nitrene fragment of the diazene. Attempts to induce catalytic alkene-diazene cross metathesis by 1 or (NHC)(PCy3)Cl2Ru = CHR (NHC = N-heterocyclic carbene, 2) result only in the transfer of the alkylidene unit from 1 without reaction of the alkene. 1H- and 31P NMR monitoring and other characterizational probes are consistent with the formation...
Source: Journal of Organometallic Chemistry - August 24, 2019 Category: Chemistry Source Type: research

Palladacycle promoted asymmetric hydrophosphination of α,β-Unsaturated sulfonyl fluorides
Publication date: Available online 22 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Xi-Rui Li, Houguang Jeremy Chen, Weifan Wang, Mengtao Ma, Yu Chen, Li Yongxin, Sumod A. Pullarkat, Pak-Hing LeungAbstractThe first example of an enantioselective hydrophosphination reaction of ethenesulfonyl fluoride derivatives catalyzed by a phosphapalladacycle afforded chiral sulfonyl fluoride-derived phosphines in quantitative yields and enantioselectivities of up to 93% ee. Investigations revealed the importance of adjacent vacant sites within the active metal center for intramolecular nucleophilic attack to provide ...
Source: Journal of Organometallic Chemistry - August 24, 2019 Category: Chemistry Source Type: research

The first tris-heteroleptic copper cage, ligated by germsesquioxanes, 2,2′-bipyridines and 3,5-dimethylpyrazolates. Synthesis, structure and unique catalytic activity in oxidation of alkanes and alcohols with peroxides
Publication date: Available online 22 August 2019Source: Journal of Organometallic ChemistryAuthor(s): A.N. Kulakova, E.E. Sedykh, M.M. Levitsky, P.V. Dorovatovskii, V.N. Khrustalev, L.S. Shul'pina, E.S. Shubina, Y.N. Kozlov, N.S. Ikonnikov, A.N. Bilyachenko, G.B. ShulpinAbstractSelf-assembly reaction of copper(II) ions and triple set of ligands (phenylgermaniumsesquioxane, 2,2′-bipyridine, 3,5-dimethylpyrazolate) results in the formation of the first example of tris-heteroleptic copper cage product (PhGeO2)10Cu6(2,2′-bipy)2(3,5-Me2Pz)2 (1). The ligation styles of complex’ components are different and inc...
Source: Journal of Organometallic Chemistry - August 24, 2019 Category: Chemistry Source Type: research

Effectiveness of the bimetallic catalytic center over the monometallic one for catalyzing the rearrangement of cyclopropanated bicyclic derivatives
Publication date: Available online 21 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Arpita Chatterjee, Rohini Saha, Poulami Pal, Sonjoy Mondal, Kuheli ChakrabartyAbstractReport shows that the cyclopropanated pentacyclic and pyran derivatives undergo ring opening reaction to form monocyclic compounds under the catalysis of Zeise's salt. Present study on the mechanism of the rearrangement reaction by density functional theory shows that this reaction prefers the involvement of two metal atoms, provided by the Zeise's dimer to generate the product. Moreover an external water molecule or alcohol is required ...
Source: Journal of Organometallic Chemistry - August 22, 2019 Category: Chemistry Source Type: research

Synthesis and structural characterization of benzyl-functionalized N-heterocyclic carbene platinum complexes: Dramatic substituent effect on anti-cancer activity
Publication date: Available online 21 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Georges Dahm, Mathilde Bouché, Corinne Bailly, Lydia Karmazin, Stéphane Bellemin-LaponnazAbstractA series of platinum (II) complexes bearing N-heterocyclic carbene NHC ligands functionalized by various benzyl moieties were synthesized and characterized. The molecular structure of two complexes has been confirmed by X-ray diffraction studies on single crystals. Investigation of in vitro cytotoxic activities against various cancer cell lines revealed a strong substituent effect: IC50 as low as 0.005 μM we...
Source: Journal of Organometallic Chemistry - August 22, 2019 Category: Chemistry Source Type: research

Cycloheptyl substituted N-heterocyclic carbene PEPPSI-type palladium complexes with different N-coordinated ligands: Involvement in Suzuki-Miyaura reaction
Publication date: Available online 21 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Mert Olgun KarataşAbstractIn the present study, synthesis and catalytic properties of palladium PEPPSI type complexes of cycloheptyl substituted N-heterocyclic carbene ligand were reported. Different N-coordinate ligands including pyridine, imidazole and thiazole derivatives were used to stabilize the complexes. Structures of complexes were established by 1H NMR, 13C NMR, IR spectroscopic methods and elemental analyses. All complexes were applied to Suzuki-Miyaura cross coupling reaction in aqueous media. After the optim...
Source: Journal of Organometallic Chemistry - August 22, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 15 October 2019Source: Journal of Organometallic Chemistry, Volume 898Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - August 22, 2019 Category: Chemistry Source Type: research

Publisher's note
Publication date: 15 October 2019Source: Journal of Organometallic Chemistry, Volume 898Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - August 22, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC continued
Publication date: 15 October 2019Source: Journal of Organometallic Chemistry, Volume 898Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - August 22, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 15 October 2019Source: Journal of Organometallic Chemistry, Volume 898Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - August 22, 2019 Category: Chemistry Source Type: research

Magnetically induced Suzuki and Sonogashira reaction performed using recyclable, palladium-functionalized magnetite nanoparticles
Publication date: Available online 19 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Amaury De Cattelle, Arne Billen, Ward Brullot, Thierry Verbiest, Guy KoeckelberghsAbstractA magnetically reusable, ligand-free palladium functionalized Fe3O4 catalyst system was successfully prepared. To overcome current problems such as the recyclability of the nanoparticle and the control and safety of the reaction, full advantage of the magnetite support was used. The palladium functionalized magnetite nanoparticle was removed by precipitation using a permanent magnet, while local heating, around the catalytic site, wa...
Source: Journal of Organometallic Chemistry - August 20, 2019 Category: Chemistry Source Type: research

Cobalt bis-dicarbollide and its ammonium derivatives are effective antimicrobial and antibiofilm agents
Publication date: Available online 17 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Eva Vaňková, Kristýna Lokočová, Olga Maťátková, Ivana Křížová, Jan Masák, Bohumír Grüner, Pavel Kaule, Jan Čermák, Václav ŠíchaAbstractThe failure of currently used antibiotics in infections treatment caused by still often emerging microbial resistance is one of the most important worldwide research items. Based on the proved biological activities of cobalt bis-dicarbollide anion [1]- and its derivatives in many medical f...
Source: Journal of Organometallic Chemistry - August 19, 2019 Category: Chemistry Source Type: research

Synthesis, structure, and reactivity of tetravalent cerium complexes containing oxidizing oxyanion ligands
Publication date: Available online 14 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Wai-Ho Wong, Kai-Hong Wong, Ka-Chun Au-Yeung, Yat-Ming So, Wai-Man Cheung, Herman H.Y. Sung, Ian D. Williams, Wa-Hung LeungAbstractTreatment of [(LOEt)2CeCl2] (LOEt− = [(η5-C5H5)Co{P(O)(OEt)2}3]-) (1) with NaIO4 in water afforded a Ce(IV) periodate complex, 2. Recrystallization of 2 from Et2O afforded orange single crystals that were found to consist of two independent molecules: [(LOEt)2Ce(IO4)2] (2a) and [(LOEt)2Ce(IO4)(H2O)][IO4] (2b). Similarly, treatment of 1 with K2S2O8 in water afforded the Ce(IV) per...
Source: Journal of Organometallic Chemistry - August 16, 2019 Category: Chemistry Source Type: research

Synthesis and characterization of alkenyl and alkyl substituted group 4 metallocene dichloride complexes: Applications in ethylene polymerization
Publication date: Available online 14 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Jesús Ceballos-Torres, Santiago Gómez-Ruiz, Mariano Fajardo, Ana B. Pinar, Sanjiv PrasharAbstractThe alkenyl substituted zirconocene complexes, [Zr(η5-C5H4{CMeRCH2CH2CH = CMe2})2Cl2] (R = Me (1), Ph (2) were prepared from the reaction of the lithium derivative Li(C5H4{CMeRCH2CH2CH = CMe2} (R = Me, Ph) with zirconium tetrachloride. The bulky alkyl substituted cyclopentadienyl ligand precursor was prepared as its fulvene derivative (C5H4) = CMeCH2CHMe2 (3) via the reaction of cyclopenta...
Source: Journal of Organometallic Chemistry - August 16, 2019 Category: Chemistry Source Type: research

Solvent-free synthesis, characterization, biological activity of schiff bases and their metal (II) complexes derived from ferrocenyl chalcone
Publication date: Available online 14 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Yuting Liu, Lisha Yang, Dawei Yin, Yang Dang, Lan Yang, Qian Zou, Jie Li, Jiaxi SunAbstractA novel efficient method for the synthesis of ferrocenyl chalcone Schiff bases and their metal (II) complexes has been developed. Schiff bases were synthesized with TsOH (p-toluenesulfonic acid) as catalyst and complexed with metal (II) salts (Zn (II), Pb (II), Cd (II), Ni (II)). The compounds were characterized by various spectroscopic techniques and elemental analysis. The thermal stability of the complexes was performed by thermo...
Source: Journal of Organometallic Chemistry - August 16, 2019 Category: Chemistry Source Type: research

Hydrogenation of carbon dioxide to formate by α-diimine RuII, RhIII, IrIII complexes as catalyst precursors
Publication date: Available online 15 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Nyasha Makuve, Gift Mehlana, Richard Tia, James Darkwa, Banothile C.E. MakhubelaAbstractThe conversion of CO2 into valuable chemicals has been of major interest because it is cheap and readily available. The concept of reducing CO2 pollution via its utilization into valuable products has inspired us to synthesise novel 4,4'-((1Z)-butane-2,3-diylidenebis(azanylylidene))dibenzoic acid (L) metal complexes {[(L)RuII] (C1), [(L)RhIII] (C2), [(L]IrIII (C3)} complexes for catalytic hydrogenation of CO2. The α-diimine metal...
Source: Journal of Organometallic Chemistry - August 16, 2019 Category: Chemistry Source Type: research

Preparation of heptafluoronaphthyllithiums and -magnesiums: An unexpected difference in the reactivity of isomers C10F7H and C10F7Br towards organolithium and organomagnesium compounds
Publication date: Available online 11 August 2019Source: Journal of Organometallic ChemistryAuthor(s): M.M. Shmakov, V.V. Bardin, S.A. Prikhod'ko, N. Yu AdoninAbstractSignificant differences in the reactivity of isomeric heptafluoronaphthalenes and bromoheptafluoronaphthalenes towards organolithium and organomagnesium compounds were found. Metalation of polyfluorinated naphthalenes 2-C10F7X (X = H, Br) occurs easily under the action of bases (BuLi, t-BuLi, LDA) as well as EtMgBr (X = Br) in ether. This fact was proven by 19F NMR spectroscopy and by trapping of 2-C10F7M (M = Li, MgBr, Mg(2-C10F7)) with electroph...
Source: Journal of Organometallic Chemistry - August 11, 2019 Category: Chemistry Source Type: research

Synthesis, structure and bonding modes of pyrazine based ligands of Cp*Rh and Cp*Ir complexes: The study of in-vitro cytotoxicity against human cell lines
Publication date: Available online 8 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Agreeda Lapasam, Emma Pinder, Roger M. Phillips, Werner Kaminsky, Mohan Rao KolliparaAbstractThe reaction of multidentate pyrazine based ligands was explored towards Cp*rhodium and Cp*iridium precursors. Mononuclear and dinuclear complexes formed by the ratio-based reaction between ligand and metal precursor. The representative complexes have been determined by single crystal X-ray diffraction studies. Cytotoxicity study of the ligands and their complexes are evaluated against human colorectal cancer cell lines HT-29, HCT-...
Source: Journal of Organometallic Chemistry - August 9, 2019 Category: Chemistry Source Type: research

Palladium nanoparticles decorated on a novel polyazomethine as a highly productive and recyclable catalyst for Suzuki coupling reactions and 4-nitrophenol reduction
This report displays the procedure in preparation of fast, highly productive, reusable, and easily retrievable Pd nanoparticles (NPs) as a heterogeneous catalyst (Pd NPs@P(3-MPAP)) immobilized on a novel polyazomethine with phenol group, Poly(3-methyl-4-((pyridin-2-ylmethylene)amino)phenol) (P(3-MPAP)), and the investigation of its catalytic efficiency in fabrication of several biaryl compounds by Suzuki coupling reactions and reduction of 4-nitrophenol to 4-aminophenol. The structures of the synthesized monomer, polymer support material and nanocatalyst were identified by UV–Vis, FT-IR, 1H NMR, TGA, XRD, SEM and EDS...
Source: Journal of Organometallic Chemistry - August 9, 2019 Category: Chemistry Source Type: research

Efficient transfer of dithiolene ligands from nickel to cyclopentadienyl ruthenium complexes
Publication date: Available online 6 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Harry Adams, Deena M. Alasali, Michael J. Morris, Sarah A. Morris, Craig C. Robertson, Voirrey L. RobinsonAbstractThe reaction of [CpRu(PPh3)2Cl] with [Ni(S2C2Ph2)2] in refluxing toluene produces the purple salt [CpRu(S2C2Ph2) (PPh3)][Cl], containing a rare example of a cationic dithiolene complex, in excellent yield. Chemical or electrochemical reduction of [CpRu(S2C2Ph2) (PPh3)][Cl] causes a colour change to blue and formation of the corresponding neutral species [CpRu(S2C2Ph2) (PPh3)]. In contrast the reaction of [CpRu(...
Source: Journal of Organometallic Chemistry - August 7, 2019 Category: Chemistry Source Type: research

Mechanochemical C–H bond activation: Synthesis of the tuckover hydrides, (C5Me5)2Ln(μ-H)(μ-η1:η5-CH2C5Me4)Ln(C5Me5) from solvent-free reactions of (C5Me5)2Ln(μ-Ph)2BPh2 with KC5Me5
Publication date: Available online 2 August 2019Source: Journal of Organometallic ChemistryAuthor(s): David H. Woen, Jessica R.K. White, Joseph W. Ziller, William J. EvansAbstractAttempts to synthesize the sterically crowded complexes (C5Me5)3Ln of the smallest lanthanide metals, Ln = Tm, and Lu, from (C5Me5)2Ln(μ-Ph)2BPh2 and KC5Me5 via mechanochemical methods has revealed C–H bond activation chemistry: the tuckover hydride complexes, (C5Me5)2Ln(μ-H)(μ-η1:η5-CH2C5Me4)Ln(C5Me5), were observed in low crystalline yields. In the case of Ln = Yb, attempts to synthesize the cationic precursor, (C5...
Source: Journal of Organometallic Chemistry - August 3, 2019 Category: Chemistry Source Type: research

Diels-Alder route to norbornane derived vicinal phosphane/borane Frustrated Lewis Pairs for the metal-free catalytic hydrogenation of α, β-unsaturated ketones
Publication date: Available online 1 August 2019Source: Journal of Organometallic ChemistryAuthor(s): Christian Wölke, Constantin G. Daniliuc, Gerald Kehr, Gerhard ErkerAbstractThe [4 + 2]-cycloaddition reaction of the (dimesitylphosphino)cyclopentadienes 5a,b with N-phenylmaleimide gave the norbornene derivative 9. Its reduction with LiAlH4 produced the N-phenylpyrrolidino-annulated system 10. Treatment with Piers' borane gave the respective P/B FLP 12 as the major product, which cleaved dihydrogen under mild conditions to yield the phosphonium/hydrido borate product 14. Reaction of the phosphino-norbornene...
Source: Journal of Organometallic Chemistry - August 2, 2019 Category: Chemistry Source Type: research

Synthesis, characterization of novel Nickel(II) complexes with PxNy-Type ligands and their application in reduction of ketones
Publication date: Available online 31 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Zhe Wang, Shen-Luan Yu, Zan-Bin Wei, Dong-Li An, Yan-Yun Li, Jing-Xing GaoAbstractNovel nickel(II) complexes 1 and 2 could be conveniently prepared using PxNy-type ligands and easily available NiCl2·6H2O as a starting material. Furthermore, we obtained the single crystals suitable for X-ray diffraction to confirm the structure of these two nickel(II) complexes. With the well-designed nickel(II) complex, the hydrogenation of a wide range of ketones proceeded smoothly under relative mild reaction conditions, affording ...
Source: Journal of Organometallic Chemistry - August 1, 2019 Category: Chemistry Source Type: research

Solvent mediated complete trans-to-cis isomerization of [Ru(polypyridine)(CO)2Cl2] complexes
Publication date: Available online 31 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Dai Oyama, Shuya Kainuma, Komi Akatsuka, Ryosuke Abe, Tsugiko TakaseAbstractTrans(Cl)-[Ru(polypyridine)(CO)2Cl2] complexes were completely isomerized to the corresponding cis(Cl)-isomers in the absence of a superacid or a reducing agent. X-ray crystallography was used to determine the molecular structures of the prepared cis-isomers. Spectroscopic, structural, and computational studies indicated that the isomerization occurs via an ethoxycarbonyl intermediate ({Ru–C(O)OC2H5}+), which is formed by the reaction of the s...
Source: Journal of Organometallic Chemistry - August 1, 2019 Category: Chemistry Source Type: research

A QTAIM and DFT study of the dizinc bond in non-symmetric [CpZn2Ln] complexes
Publication date: Available online 31 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Regla Ayala, Agustín GalindoAbstractSeveral [Zn2L2] and [CpZn2Ln] dizinc compounds have been studied by density functional theory (DFT) and quantum theory of atoms in molecules (QTAIM) in order to compare the nature and topology of the Zn–Zn bond in symmetrical and non-symmetrical complexes. The stability of these complexes haven been evaluated on the basis of the formation energies. The disproportionation reaction has also been analysed indicating that symmetric complexes are less stable than non-symmetric one...
Source: Journal of Organometallic Chemistry - August 1, 2019 Category: Chemistry Source Type: research

Homoleptic ruthenium complexes with N-heterocyclic carbene ligands as photosensitizers in the photocatalytic generation of H2 from water
Publication date: Available online 31 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Javier Torres, M. Carmen Carrión, Jorge Leal, Gregorio Castañeda, Blanca R. Manzano, Félix A. JalónAbstractThere is great interest in the catalytic photoreduction of water to give hydrogen as a fuel to harness solar energy and a series of ruthenium complexes has been synthesized and tested as photosensitizers in this photoreduction process. There are very few precedents for N-heterocyclic carbene complexes in this field. The complexes obtained in this work were of the type [Ru(:CˆNˆC)2]...
Source: Journal of Organometallic Chemistry - August 1, 2019 Category: Chemistry Source Type: research

Electrophilic amination of Cu(I) catalyzed phenylmagnesium bromide with N,O-bis(Trimethylsilyl)hydroxylamine in THF:N-donor solvent. Control of C–N and C–O chemoselectivity
Publication date: Available online 31 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Didem Kahya, Fatma EroğluAbstractReaction of PhMgBr with (Me3Si)HNO(SiMe3)[TMSHA] in the presence of CuI or CuCN catalysis (10–20 mol %) in THF:cosolvent (cosolvent = HMPA or TMEDA) at room temperature can provide an atom-economic and step-economic access for arylamine synthesis starting from aryl Grignard reagents. Chemoselectivity to yield C–N or C–O coupling can be controlled by changing reaction parameters. Cu(I) catalyzed reaction of PhMgBr in THF or in THF:HMPA (or TMEDA) affords both C–...
Source: Journal of Organometallic Chemistry - August 1, 2019 Category: Chemistry Source Type: research

Hyperbranched polyethylenimine-supported copper(II) ions as a macroliganted homogenous catalyst for strict click reactions of azides and alkynes in water
Publication date: Available online 30 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Hicham Ben El Ayouchia, Hamid ElMouli, Lahoucine Bahsis, Hafid Anane, Rachid Laamari, Carlos J. Gómez-García, Miguel Julve, Salah-Eddine StiribaAbstractLoading hyperbranched polyethylenimine (PEI) with copper(II) ions leads to the formation of a new water-soluble metallodendritic polymer Cu(II)-PEI that has been found to effectively catalyze the clickable azide-alkyne [3 + 2] cycloaddition reactions in water under ambient conditions, in the lack of any external reducing agent. A positive dendritic ef...
Source: Journal of Organometallic Chemistry - July 31, 2019 Category: Chemistry Source Type: research

Towards enantiopure macrocyclic trans-dinucleating hemilabile P-Alkene ligands: Syntheses, structures, and Chiral Pd-Complexes
Publication date: Available online 26 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Sibylle Frieß, Alberto Herrera, Anthony Linden, Frank W. Heinemann, Romano DortaAbstractDibenzazepinyl dichlorophosphine 2 reacts with (R,R)-2,3-O-isopropylidene-threitol (3) in Et2O solution to afford gram-quantities of the enantiopure macrocylic phosphoramidite (all-R)-6, which may be seen as a formal dimer of classic phosphoramidite P-alkene hybrid ligands. Complexation experiments with PdCl2 reveal highly selective formation of the trans-dinuclear complex (all-R)-11. The corresponding bulkier and rigidly trans-ecl...
Source: Journal of Organometallic Chemistry - July 28, 2019 Category: Chemistry Source Type: research

Catalytic synthesis of organic cyclic carbonate through CO2 fixation and production of β-amino alcohol via ring opening of epoxides under green condition by polystyrene embedded Al(III) catalyst
Publication date: Available online 27 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Surajit Biswas, Dipanwita Roy, Swarbhanu Ghosh, Sk Manirul IslamAbstractDevelopment of low cost, eco-friendly heterogeneous catalyst for the production of value added organic compounds has been drawn a considerable attention to the synthetic chemists in recent era. Keeping the above idea in our mind, we have design and synthesized a polymer anchored Al(III) composite from modified Merrifield resin. The composite was characterized properly by FT-IR spectra, SEM, EDAX, elemental analysis, ICP-AES and PXRD studies. The low cos...
Source: Journal of Organometallic Chemistry - July 28, 2019 Category: Chemistry Source Type: research

Recent progress in designing the synthetic strategies for bismuth based complexes
Publication date: Available online 27 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Sohaila Andleeb, Imtiaz-ud-DinAbstractThis short review article provides an insight into the synthetic chemistry involved in the formation of bismuth based versatile frameworks. A unique feature of bismuth compounds is their ability to undergo hydrolysis to produce oxido/hydroxido clusters of various sizes and nuclearities which ultimately produce bismuth based oxides and sulphides for numerous advanced applications. The pertinent reported synthetic routes for such type of compounds are briefly reviewed here.Graphical abstr...
Source: Journal of Organometallic Chemistry - July 28, 2019 Category: Chemistry Source Type: research

Editorial Board
Publication date: 1 October 2019Source: Journal of Organometallic Chemistry, Volume 897Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - July 27, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC continued
Publication date: 1 October 2019Source: Journal of Organometallic Chemistry, Volume 897Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - July 27, 2019 Category: Chemistry Source Type: research

Graphical abstract TOC
Publication date: 1 October 2019Source: Journal of Organometallic Chemistry, Volume 897Author(s): (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - July 27, 2019 Category: Chemistry Source Type: research

Diaryltriazenido Palladium(II) complexes derived from 1-(2-bromo-4-ethoxycarbonylphenyl)-3-phenyltriazenes
Publication date: Available online 24 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Silvio Preusser, Paul R.W. Schönherr, Helmar Görls, Wolfgang Imhof, Sven Krieck, Matthias WesterhausenAbstract1-(2-Bromo-4-ethoxycarbonylphenyl)-3-phenyltriazene (1) can easily be deprotonated yielding the corresponding triazenides of lithium, silver, or triethylammonium. The equimolar metathesis reaction of [(Ph3P)2PdCl2] with these triazenides leads to the formation of [(Ph3P)2Pd(Ph-N3-C6H3-2-Br-4-COOEt)Cl] (3). The addition of another equivalent yields mixtures of [(Ph3P)2Pd(Ph-N3-C6H3-2-Br-4-COOEt)Cl] (3) and ...
Source: Journal of Organometallic Chemistry - July 25, 2019 Category: Chemistry Source Type: research

Azoxycobaltocenium dication, a new organometallic azoxyarene
Publication date: Available online 23 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Anne Wolter-Steingrube, Ulrich Behrens, Jürgen HeckAbstractThe synthesis of two dinuclear azoxycobaltocenium salts is presented and the new compounds are characterized by NMR spectroscopy, cyclic voltammetry, high resolution ESI mass spectrometry, elemental analysis and X-ray structure determination.Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - July 24, 2019 Category: Chemistry Source Type: research

Heterometallic nitrido cluster compounds: Synthesis and characterizations of the first nitrido-containing ruthenium-gold and ruthenium-copper carbonyl cluster complexes
Publication date: Available online 22 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Richard D. Adams, Perry J. Pellechia, Mark D. Smith, Jonathan D. Tedder, Nutan D. WakdikarAbstractThe first high nuclearity ruthenium-gold-nitrido carbonyl and ruthenium-copper-nitrido carbonyl cluster compounds have been synthesized and structurally characterized. The reaction of [PPN][Ru5(μ5-N)(CO)14], 1, with [Au(PPh3)]NO3 yielded three new hetero-bimetallic ruthenium-gold-nitrido cluster complexes: monogold - tetraruthenium cluster complex Ru4(μ4-N)(CO)12[μ-Au(PPh3)], 2, goldpentaruthenium cluster complex Ru5(&...
Source: Journal of Organometallic Chemistry - July 24, 2019 Category: Chemistry Source Type: research

Aldehyde group functionalized iridium(III) complexes for the selective sensing of homocysteine
Publication date: Available online 22 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Yonghua Liu, Qingqing Wang, Mei-Jin LiAbstractTwo aldehyde group functionalized iridium (III) complexes were synthesized and characterized. The electronic absorption, emission and transient emission spectra were studied. The crystal structure of one of the complexes has been determined. Their interaction with homocysteine (Hcy) was investigated by UV–vis absorption, photoluminescence, 1H NMR and mass spectroscopies. The photoluminesce of the complexes was enhanced significantly after addition of Hcy due to the formati...
Source: Journal of Organometallic Chemistry - July 24, 2019 Category: Chemistry Source Type: research

NHC–Au(I) catalyzed enantioselective intramolecular [4+3] cycloaddition of furan propargyl esters
Publication date: Available online 21 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Ruoyu Ma, Jianbo Yang, Steven Kelley, Benjamin W. GungAbstractEnantioselectivity up to 75% ee has been achieved for an intramolecular [4 + 3] cycloaddition reaction with a series of chiral gold(I) complexes. Nine new chiral NHC–Au(I) complexes featuring disilylbiphenyl derived chiral N-heterocyclic carbene ligands were synthesized and identified by 1H, 13C NMR spectroscopy and X-ray single crystal structure analysis. The corresponding activated Au(I) catalysts with a phenyl nitrile dynamic ligand were prepar...
Source: Journal of Organometallic Chemistry - July 22, 2019 Category: Chemistry Source Type: research

Pincer complexes, leading characters in C–H bond activation processes. Synthesis and catalytic applications
Publication date: Available online 20 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Hugo Valdés, Ernesto Rufino-Felipe, David Morales-MoralesAbstractThe direct functionalization of C–H bonds is in many ways a simple and desired reaction. This strategy could decrease the amount of wastes and energy in a given process. Thus, it is attractive from an environmental and economical point of view. However, C–H bonds are usually strong and kinetically inert; hence, their activation remains a challenging transformation. In addition, the control of the selectivity in C–H activation is diffic...
Source: Journal of Organometallic Chemistry - July 21, 2019 Category: Chemistry Source Type: research

1-[N-phenyl(aminomethyl)]silatrane: Synthesis, reactivity and structure
Publication date: Available online 19 July 2019Source: Journal of Organometallic ChemistryAuthor(s): N.F. Lazareva, I.V. SterkhovaAbstract1-[N-Phenyl(aminomethyl)]silatrane PhNHCH2Si(OCH2CH2)3N was prepared and characterized by multinuclear NMR spectroscopy and single-crystal X-ray diffraction analysis. Its reactivity with CCl4, AgNO3, CuCl2 and α-,β-unsaturated cyclic ketones was investigated.Graphical abstract (Source: Journal of Organometallic Chemistry)
Source: Journal of Organometallic Chemistry - July 21, 2019 Category: Chemistry Source Type: research

Synthesis, characterization, in vitro antimicrobial and anticancer studies of new platinum N-heterocyclic carbene (NHC) complexes and unexpected nickel complexes
Publication date: 15 October 2019Source: Journal of Organometallic Chemistry, Volume 898Author(s): Kar Bee Choo, Sui Mae Lee, Wai Leng Lee, Yuen Lin CheowAbstractA series of bidendate pyridine-functionalized metal N-heterocyclic carbene (NHC) complexes with various wingtip substituents (R = methyl, phenyl and tert-butyl) had been prepared from silver oxide-mediated transmetalation method. The basic backbone of the NHC ligands were prepared in two stepwise reactions: reduction of the commercially available 2-benzoylpyridine, followed by halogenation to yield 2-(chloro(phenyl)methyl)pyridine. Subsequent reactions with di...
Source: Journal of Organometallic Chemistry - July 21, 2019 Category: Chemistry Source Type: research

MOF nano porous-supported C-S cross coupling through one-pot post-synthetic modification
Publication date: Available online 17 July 2019Source: Journal of Organometallic ChemistryAuthor(s): Heshmatollah Alinezhad, Shahram Ghasemi, Mansoureh CheraghianAbstractUIO-66-NH2-Fu@Ni has been synthesized by anchoring a molecular nickel furfural (Fu) complex into a functionalized nanoporous metal-organic framework (MOF) with the amine functional groups, using the one-pot post-synthetic modification. This new catalyst was identified via Fourier-transform infrared (FT-IR) spectroscopy, proton-nuclear-magnetic-resonance (1HNMR) spectroscopy, nitrogen gas adsorption-desorption method, thermogravimetric analyses (TGA), energ...
Source: Journal of Organometallic Chemistry - July 19, 2019 Category: Chemistry Source Type: research

Copper-catalyzed Mizoroki-Heck coupling reaction using an efficient and magnetically reusable Fe3O4@SiO2@PrNCu catalyst
This study intends to design and prepare a new magnetic copper catalyst and its activity was assessed by carbon-carbon coupling reactions. For this purpose, 1-[3-(trimethoxysilyl) propyl] urea (TMSPU), hydrazine and CuI were used sequentially to modify Fe3O4@SiO2 core-shell magnetic nanoparticles to obtain an efficient magnetic transition metal catalyst. Various analytical techniques were used to characterize the catalyst to show that the achieved structure and its properties are well-suited for coupling reactions. Finally, Mizoroki-Heck and Ullmann coupling reactions were performed using Fe3O4@SiO2@PrNCu catalyst. The new...
Source: Journal of Organometallic Chemistry - July 19, 2019 Category: Chemistry Source Type: research