Reversible absorption of sulfur dioxide by bis(diphenylphosphino)ethanenickel(II) aryldithiolates

被引:24
作者
Darkwa, J
机构
[1] Department of Chemistry, University of the North, Sovenga 0727
关键词
nickel complexes; dithiolato complexes; crystal structures; sulfur dioxide absorption;
D O I
10.1016/S0020-1693(96)05459-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reaction of dithiols with Ni(dppe)Cl-2 gave monomeric or dimeric dithiolato compounds depending on the nature of the dithiol. Toluene-dithiol (TDT) and 1,2-benzenedithiol (I,2-BDT) gave Ni(dppe)(TDT) (I) and Ni(dppe)(1,2-BDT) (2), respectively, whereas 1,3-benzenedithiol (1,3-BDT) gave [Ni(dppe)Cl](2)(1,3-BDT) (3). Single crystal X-ray diffraction studies of 2 showed a square planar nickel environment. Complexes 1 and 2 reacted rapidly and reversibly with SO2 to form 1 . SO2 and 2 . SO2, respectively. The reversibility of the SO2 reactions was established by a combination of UV-Vis and H-1 NMR spectroscopy.
引用
收藏
页码:137 / 141
页数:5
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