Highly Ordered Hierarchical Macro-Mesoporous Carbon-Supported Cobalt Electrocatalyst for Efficient Oxygen Evolution Reaction
Chem Asian J. 2023 Dec 24:e202300946. doi: 10.1002/asia.202300946. Online ahead of print.ABSTRACTMetal-organic frameworks (MOFs) and their derivatives have been extensively employed in Oxygen Evolution Reaction (OER) catalysts due to their significantly larger specific surface areas, distinct metal centers, and well-organized porous structures. However, the microporous structure of MOFs and their derivatives presents mass transfer resistance, limiting their further development. Drawing inspiration from hierarchical structures allowing for the transport and exchange of substances in the biological world, we designed and fab...
Source: Chemistry, an Asian Journal - December 24, 2023 Category: Chemistry Authors: Lanke Luo Jingshen Xu Qiuhong Wan Yiting Han Mingxuan Li Dingwei Cui Runxuan Chen Zhangrong Tang Xinjun Cui Xin Xin Xinchang Li Yulu Xiang Haohai Dong Liu Lin Zemin Sun Genban Sun Source Type: research
Circularly Polarized Luminescence from Schiff-base [4]Helicene Boron Complexes
Chem Asian J. 2023 Dec 22:e202301024. doi: 10.1002/asia.202301024. Online ahead of print.ABSTRACTBoron complexes with Schiff-base [4]helicene ligands were synthesized. These complexes were characterized by NMR spectroscopy and their helical molecular structures were unequivocally established by X-ray diffraction (XRD) analysis. The helical boron complexes exhibited efficient photoluminescence under UV irradiation, and the circularly polarized luminescence (CPL) properties were investigated for optically pure samples. Density functional theory (DFT) calculations were conducted to further understand their photophysical prope...
Source: Chemistry, an Asian Journal - December 23, 2023 Category: Chemistry Authors: Masahiro Ikeshita Shinya Watanabe Seika Suzuki Maho Kitahara Yoshitane Imai Takashi Tsuno Source Type: research
Circularly Polarized Luminescence from Schiff-base [4]Helicene Boron Complexes
Chem Asian J. 2023 Dec 22:e202301024. doi: 10.1002/asia.202301024. Online ahead of print.ABSTRACTBoron complexes with Schiff-base [4]helicene ligands were synthesized. These complexes were characterized by NMR spectroscopy and their helical molecular structures were unequivocally established by X-ray diffraction (XRD) analysis. The helical boron complexes exhibited efficient photoluminescence under UV irradiation, and the circularly polarized luminescence (CPL) properties were investigated for optically pure samples. Density functional theory (DFT) calculations were conducted to further understand their photophysical prope...
Source: Chemistry, an Asian Journal - December 23, 2023 Category: Chemistry Authors: Masahiro Ikeshita Shinya Watanabe Seika Suzuki Maho Kitahara Yoshitane Imai Takashi Tsuno Source Type: research
Synthesis of Boronic Esters from Organometallic Reagents and Bis(pinacolato)diboron
Chem Asian J. 2023 Dec 22:e202300911. doi: 10.1002/asia.202300911. Online ahead of print.ABSTRACTSynthesis of alkyl, aryl and vinyl boronic esters carrying various chiral and achiral diol protecting groups were synthesized starting from the corresponding alkyl, aryl and vinyl lithium or Grignard reagents. Good to excellent yields were obtained for a large range of substrates. The reaction can be conducted in gram scale to obtain the product over 80% yield. This method allows direct access to neopentyl, pinene and other boronic esters which are difficult to obtain by other methods using trimethoxyborane or 2-isoprpoxy pinac...
Source: Chemistry, an Asian Journal - December 22, 2023 Category: Chemistry Authors: Swagata Paul Santanu Panda Source Type: research
An Open-Air Palladium-Catalyzed Stereoselective O-Glycosylation of Glycals viain-situ Generation of gem-Disubstituted Methanols from p-Quinone Methides
Chem Asian J. 2023 Dec 22:e202301013. doi: 10.1002/asia.202301013. Online ahead of print.ABSTRACTWe devised a palladium-catalyzed α-stereoselective glycosylation that incorporates oxygen viain-situ generation of gem-disubstituted methanols from p-quinone methides to access 2,3-unsaturated gem-diarylmethyl O-glycosides under open-air atmosphere at room temperature. Advantages of this environmentally friendly strategy include the absence of additives and ligands, using water as the green source of oxygen, mildest, operationally simple, exhibiting a wide functional group tolerance, and compatibility with a variety of glycal ...
Source: Chemistry, an Asian Journal - December 22, 2023 Category: Chemistry Authors: Zanjila Azeem Shashiprabha Dubey Sk Areful Islam Pintu Kumar Mandal Source Type: research
