Halos show the path to perfection: peripheral iodo-substituents improve the efficiencies of bis(diimine)copper(<scp>i</scp>) dyes in DSCs
作者:Frederik J. Malzner、Sven Y. Brauchli、Edwin C. Constable、Catherine E. Housecroft、Markus Neuburger
DOI:10.1039/c4ra06823h
日期:——
mixture of [Cu(5)2][PF6] and [Cu(5)(MeCN)2][PF6]; variable temperature 1H NMR spectroscopy confirmed that the complexes are in equilibrium in CD3CN solution. The structure of [Cu(5)(MeCN)2][PF6] was determined by single crystal X-ray crystallography, and confirms a distorted tetrahedral geometry for the copper(I) centre. The heteroleptic dyes [Cu(1)(2)]+, [Cu(1)(3)]+, [Cu(1)(4)]+ and [Cu(1)(5)]+ (1
均相铜(I)络合物[CuL 2 ] [PF 6 ](L = 4,4'-双(4-卤代苯基)-6,6'-二甲基-2,2'-联吡啶与卤素= F(2)和Cl(3))的制备和表征,与L = 4,4'-双(4-溴苯基)-6,6'-二甲基-2,2'-联吡啶相比,它们的吸收光谱和电化学性质(4)。[CuL 2 ] [PF 6 ]的合成(L = 4,4'-双(4-碘苯基)-6,6'-二甲基-2,2'-联吡啶,5)产生[Cu(5)2 ] [PF 6 ]和[Cu(5)(MeCN)2 ] [PF6 ]; 可变温度1 H NMR光谱证实,络合物在CD 3 CN溶液中处于平衡状态。[Cu( 5)(MeCN) 2 ] [PF 6 ]的结构是通过单晶X射线晶体学确定的,证实了铜( I)中心的四面体几何形状失真。杂合染料[Cu( 1)( 2)] +,[Cu( 1)( 3)] +,[Cu( 1)( 4)] +和[Cu( 1((