Novel stable five-coordinate diorgano cobalt(III) complexes: Formation, structure, and reaction with carbon monoxide
摘要:
A series of new five-coordinate acyl vinyl cobalt(III) complexes Co{eta(1)-C(C CPh)=CHPh}[C(O)-C=C-O]L-2(L=PMe3) (6-10) were prepared via formal insertion of diphenylbutadiyne into Co-H function of mer-octahedral hydrido-acyl(phenolato)-cobalt(III) complexes. The complexes are diamagnetic. One square pyramidal structure of complex 6 was confirmed by X-ray diffraction analysis. These complexes are stable in solid state. In solution, six-coordinate acyl vinyl carbonyl cobalt(III) complex 11 is approved through the reaction of complex 7 with CO and the structure of complex 11 was determined by X-ray method. (c) 2006 Elsevier B.V. All rights reserved.
Reactivity of mer-hydrido(2-mercaptobenzoyl)tris(trimethylphosphine)cobalt(iii) complex
作者:Qingfen Niu、Hongjian Sun、Lin Wang、Qingping Hu、Xiaoyan Li
DOI:10.1039/c3dt52519h
日期:——
The reactivity of mer-hydrido(2-mercaptobenzoyl)tris(trimethylphosphine)cobalt(III) complex 1 was intensively studied. A series of sulfur-coordinated organocobalt complexes (2–8) were obtained through the reactions of 1 with RX (RX = HCl, C2H5Br and CH3I), 2-(diphenylphosphanyl)phenol, 2-(diphenylphosphino)benzenethiol, and CO. The reaction of complex 1 with ethynyltrimethylsilane under 1 bar of CO
Reaction of the Acyl(hydrido)cobalt(III) Complex with 2-Propyn-1-ol
作者:Lei She、Hongjian Sun、Xiaoyan Li
DOI:10.1002/zaac.200700206
日期:2007.10
Acyl(hydrido)cobalt(III) complexes mer-[CoIII(O∩C=O)(H)(PMe3)3] (1 and 2) stabilized by 2-acylphenolato-chelating ligands and with the support of trimethylphosphine react with 2-propyn-1-ol to generate inserting products of alkyne bond into Co-H bond bearing bis-chelating vinyl cobalt(III) complexes cis-[CoIII(O∩C=O)(HO∩C=CH2)(PMe3)2] (3 and 4). In complexes 3 and 4 the vinyl chelating ligands form