New Heteroleptic Bis-Phenanthroline Copper(I) Complexes with Dipyridophenazine or Imidazole Fused Phenanthroline Ligands: Spectral, Electrochemical, and Quantum Chemical Studies
作者:Yann Pellegrin、Martina Sandroni、Errol Blart、Aurélien Planchat、Michel Evain、Narayan C. Bera、Megumi Kayanuma、Michel Sliwa、Mateusz Rebarz、Olivier Poizat、Chantal Daniel、Fabrice Odobel
DOI:10.1021/ic2006343
日期:2011.11.21
behavior, corresponding to a copper(I) to copper(II) transition. The half wave potentials increase with the steric bulk at the level of the copper(I) ion, reaching a value as high as 1 V vs SCE, with the assistance of ligand induced electronic effects. L1 and L2 are further end-capped by a bromo functionality. A Suzuki cross-coupling reaction was directly performed on the complexes, in spite of the handicapping
两个新的空间位挑战二亚胺配体大号1(2,9-二基的2-(4'-溴苯基)咪唑并[4,5- ˚F ] [1,10]菲咯啉)和大号2(3,6-二- ñ -遵循Schmittel和同事开发的HETPHEN概念,合成了丁基-11-bromodipyrido [3,2- a:2',3'- c ]吩嗪),目的是构建原始的杂铜(I)配合物。L 1的结构基于一个苯并咪唑分子核心,该苯并咪唑分子在菲咯啉腔的2和9位上被两个高度庞大的异氰酸酯基衍生而来,从而阻止了均纯物质的形成,而L 2dppz是dppz衍生物,在螯合氮原子的α位带有正丁基链。基于L 1,L 2和互补匹配配体(2,9-R 2 -1,10-菲咯啉,R = H,甲基,正丁基或异丁基)的六个新型杂铜(I)配合物的明确形成)已被证明,并且所形成的化合物已得到充分表征。所有配合物的电子吸收光谱与DFT计算非常吻合,可以指定主要的跃迁。使用时间分辨单光子计