Structural, Electronic, and Computational Studies of Heteroleptic Cu(I) Complexes of 6,6′-Dimesityl-2,2′-bipyridine with Ferrocene-Appended Ethynyl-2,2′-bipyridine Ligands
作者:Jonathan E. Barnsley、Synøve Ø. Scottwell、Anastasia B. S. Elliott、Keith C. Gordon、James D. Crowley
DOI:10.1021/acs.inorgchem.6b01300
日期:2016.8.15
ethynyl-2,2′-bipyridine ligands and the associated heteroleptic copper(I) complexes of 6,6′-dimesityl-2,2′-bipyridine are reported. These dyes have been studied using electrochemical analysis, electronic absorption, and Raman and resonance Raman spectroscopies, coupled with density functional theoretical approaches. For the complexes, optical spectra are dominated by a low energy copper(I) centered metal
报道了三个二茂铁附加的乙炔基-2,2'-联吡啶配体和相关的6,6'-dimesityl-2,2'-联吡啶杂配铜(I)配合物的光学表征和计算模型。已使用电化学分析,电子吸收,拉曼光谱和共振拉曼光谱以及密度泛函理论方法对这些染料进行了研究。对于络合物,光谱以低能铜(I)为中心的金属到配体的电荷转移(MLCT)跃迁占主导。这由二茂铁侧链单元的存在和二茂铁联吡啶骨架的共轭程度来调节。研究表明,由于二茂铁引起的电子调谐导致MCLT跃迁的红移高达〜0.2 eV,