Synthesis and characterization of new bis(1-aryliminomethylenylnaphthalen-2-oxy)nickel complexes and their catalytic behavior for vinyl polymerization of norbornene
作者:Fei Chang、Dongheng Zhang、Guiyun Xu、Haijian Yang、Jitai Li、Haibin Song、Wen-Hua Sun
DOI:10.1016/j.jorganchem.2003.12.024
日期:2004.3
to form bis(1-aryliminomethylenylnaphthalen-2-oxy)nickel complexes. All resultant compounds were structurally characterized by elemental analyses, IR and H NMR, and the structures of the formed complexes were elucidated by X-ray crystal structure analysis. The complexes show high catalytic activities for the vinyl polymerization of norbornene in the presence of methylaluminoxane. The catalytic activity
合成的1-芳基亚甲基亚甲基萘-2-醇衍生物与氯化镍反应形成双(1-芳基亚甲基亚甲基萘-2-氧基)镍配合物。通过元素分析,IR和1 H NMR对所有所得化合物的结构进行表征,并通过X射线晶体结构分析阐明形成的配合物的结构。在甲基铝氧烷的存在下,该配合物对降冰片烯的乙烯基聚合显示出高催化活性。气相色谱法通过监测降冰片烯的转化来跟踪催化活性的变化。
π–π interaction leading to an inversion-symmetric complex pair of Λ- and Δ-bis[N-2-(R-pyridyl)-2-oxo-1-naphthaldiminato-κ2N,O]zinc(II)
作者:Mohammed Enamullah、Mohammad Ariful Islam、Baitul Alif Joy、Birger Dittrich、Guido J. Reiss、Christoph Janiak
DOI:10.1016/j.ica.2018.07.028
日期:2018.10
an inversion-symmetric complex pair with opposite Λ- and Δ-configurations at the metal centre. The packing analysis is further supported by quantitative analysis of intermolecular interactions with the Hirshfeld surface. The optimized structure and excitation stateproperties by DFT/TDDFT support the solidstate molecular structure and electronic spectra in solution, respectively.
Bis[N-2-(R-pyridyl)-2-oxo-1-naphthaldiminato-κ2N^O]copper(II) (R = H, 4/6-CH3): Combined studies on syntheses, spectroscopy, cyclic voltammetry, thermal analyses, crystal structure and DFT/TDDFT
作者:Mohammed Enamullah、Mohammad Ariful Islam、Baitul Alif Joy、Guido J. Reiss
DOI:10.1016/j.ica.2016.08.013
日期:2016.11
electrons transfer for [Cu(L)2]/[Cu(L)2]− and [Cu(L)2]−/[Cu(L)2]2− couples, respectively in acetonitrile. Magnetic moment values μ = 1.35 (1), 1.40 (2), and 1.42 (3) μB at 23 °C} indicate the formation of copper(II)-N^O chelate complexes with one unpaired electron in dichloromethane. X-ray structure determination for 3 verifies its roughly square-planar coordination by two N^O-chelating ligands to the