A comparison of cis- and trans-cobalt(III) complexes with phosphorus and arsenic ligands; the effect of stereochemistry on redox and spectroscopic properties
作者:William Levason、Stephen R. Preece、Christopher S. Frampton
DOI:10.1016/0277-5387(95)00558-7
日期:1996.8
The spectroscopic (UV-vis, 1H, 31P and 59Co NMR) properties of cis- and trans- [Co(LL)2X2]Y [LL = o-C6H4(PMe2)2 or o-C6H4(AsMe2) 2; X = Cl or Br, Y = X pr BF4] and (cis) [Coo-C6H4AsMe2)3}X2]X (X = Cl, Br or I) are compared. Cyclic voltammetry has been used to probe the redox chemistries as a function of metal geometry. The structure of [CoAs(o-C4H4AsMe2)3}Br2]BF4 has been determined [CoAs = 2
分光(UV-VIS,1个H,31 P和59共同NMR)的性质顺-和反式- [CO(LL)2 X 2 ] Y [LL= ø -C 6 ħ 4(PME 2)2或o -C 6 H 4(AsMe 2)2;X = Cl或Br,Y = X pr BF 4 ]和(顺式)[Co o -C 6 H 4 AsMe 2)3 } X 2比较] X(X = Cl,Br或I)。循环伏安法已被用来探测作为金属几何函数的氧化还原化学。已确定[Co As(o -C 4 H 4 AsMe 2)3 } Br 2 ] BF 4的结构[CoAs= 2.242(2)−2.363(2),CoBr= 2.394(2) ,2.435(2)Å]。