Synthesis, characterization, crystal structures, Hirshfeld surface analysis and theoretical calculations of some new bisphosphoramidate derivatives and novel binuclear Triorganotin(IV) complexes with diphosphoryl Ligand

Publication date: Available online 22 October 2018Source: Journal of Organometallic ChemistryAuthor(s): Khodayar Gholivand, Masoumeh Azadbakht, Yazdan Maghsoud, Mahdieh Hosseini, Canan KazakAbstractA series of new bisphosphoramidate and (thio)phosphoramidate derivatives with the general formula of R1R2P(X)-YP(X)R1R2 have been synthesized and characterized by IR and NMR spectroscopies (L1–L12). The crystal structure of compound 1,4-[(C2H5O)2P(S)(CH2)3NH]2C4H8N2 (L4) is also investigated by X-ray diffraction analysis. Two novel organotin(IV) complexes μ-{1,4-[(C6H5)2P(O)(CH2)3NH]2C4H8N2}[SnR3Cl]2, R3SnCl (R = phenyl/butyl), C1 and C2, respectively, are prepared by the reaction of new diphosphoryl ligand L1 and R3SnCl under different conditions. Complexes of C1 and C2 are characterized by IR and NMR spectroscopies and X-ray crystallography diffraction analysis. X-ray analysis illustrates that both complexes have similar structures containing binuclear triorganotin(IV) skeletons and ligand coordinates in a bridging mode through two phosphoryl groups. Sn(IV) coordination geometries are distorted trigonal bipyramidal (TBP) for C1, and C2 structures contained binuclear arrangement with two SnPh3Cl/SnBu3Cl groups linked via the bridging diphosphoryl ligand. The organization of the crystal structures and the intermolecular interactions are discussed. Hirshfeld surfaces and two-dimensional fingerprint plots are used to study short intermolecular contacts in C1, C2, and L4. Final...

Source: Journal of Organometallic Chemistry - October 22, 2018 Category: Chemistry Source Type: research