Copper(I)/O<sub>2</sub> Chemistry with Imidazole Containing Tripodal Tetradentate Ligands Leading to μ-1,2-Peroxo−Dicopper(II) Species
作者:Yunho Lee、Ga Young Park、Heather R. Lucas、Peter L. Vajda、Kaliappan Kamaraj、Michael A. Vance、Ashley E. Milligan、Julia S. Woertink、Maxime A. Siegler、Amy A. Narducci Sarjeant、Lev N. Zakharov、Arnold L. Rheingold、Edward I. Solomon、Kenneth D. Karlin
DOI:10.1021/ic9017695
日期:2009.12.7
2-(1H-imidazol-4-yl)-N,N-bis((pyridin-2-yl)methyl)ethanamine}, have been investigated to probe differences in their chemistry, especially in copper(I)−dioxygen chemistry, compared to that already known for the pyridyl analogue TMPA, tris(2-pyridyl)methyl)amine. Infrared (IR) stretching frequencies obtained from carbon monoxide adducts of [(LMIm)CuI]+ (1a) and [(LEIm)CuI]+ (2a) show that the imidazolyl donor is
亚铜和铜与含有新咪唑基的三足四齿配体 L MIm , (1 H -imidazol -4-yl)- N , N -bis((pyridin-2-yl)methyl) methanamine和 L EIm , 2- (1 H -imidazol-4-yl)- N , N -bis((pyridin-2-yl)methyl)ethanamine},已被研究以探讨它们的化学差异,特别是在铜(I)-双氧化学中,比较已知的吡啶基类似物 TMPA,三(2-吡啶基)甲基)胺。从 [(L MIm )Cu I ] + ( 1a ) 的一氧化碳加合物获得的红外 (IR) 伸缩频率) 和 [(L EIm )Cu I ] + ( 2a ) 表明咪唑基供体比其吡啶基类似物更强。电化学数据表明,与 TMPA 和 L MIm相比,Cu II与 L EIm的结合常数存在差异,反映了几何变化。[(L MIm )Cu I ]