Four neutral mononuclear Cu(I) complexes, [Cu(pyin)(PPh3)2] (1a), [Cu(pyin)(DPEphos)] (1b), [Cu(quin)(PPh3)2] (2a) and [Cu(quin)(DPEphos)] (2b) (Hpyin = 2-(2-pyridyl)indole, Hquin = 2-(2-quinolyl)indole and DPEphos = bis(2-(diphenylphosphino)phenyl)ether) have been synthesized. X-Ray crystal structure analysis revealed that the central Cu(I) ion in all complexes is in a distorted tetrahedral coordination
四种中性单核Cu(I)配合物[Cu(pyin)(PPh 3)2 ](1a),[Cu(pyin)(DPEphos)](1b),[Cu(quin)(PPh 3)2 ](2a)和[Cu(quin)(DPEphos)](2b)(Hpyin =2-(2-
吡啶基)
吲哚,Hquin = 2-(2-
喹啉基)
吲哚 和DPEphos = 双(2-(
二苯基膦基)苯基)醚)已合成。X射线晶体结构分析表明,所有配合物中的中心Cu(I)离子处于扭曲的四面体配位环境中。所有这四个络合物分别在371、363、413和402 nm处显示典型的
金属-
配体电荷转移(MLCT)吸收带。由于三重态-三重态an灭,没有观察到任何固态复合物的发射。但是,当分散在刚性基质(例如P
MMA)或冷冻的CH 2 Cl 2中时,配合物显示出异常的双重发射,源自
配体内电荷转移(ILCT)和MLCT跃迁。这些中性络合物中Cu(I)/ Cu(II)的氧化电位约为0