10-phenanthroline, (MeO)2phen, and L = Cl− or triphenylphosphine, PPh3, were synthetized and characterized by 1H NMR, UV–vis and FTIR spectroscopies and their photophysical properties were investigated by steady-state and time-resolved emission spectroscopies. All complexes displayed strong absorption in the high energy UV-region assigned to intraligand transitions, ILNN, and the lower energy band was ascribed to a
摘要在这项工作中,化合物fac- [ReL(CO)3(NN)] 0 / + 1,NN = 1,10-
菲咯啉,phen,
4,7-二甲基-1,10-菲咯啉,Me2phen或4合成了7,7-二甲氧基-1,10-
菲咯啉(MeO)2phen和L = Cl-或
三苯基膦PPh3并通过1H NMR,UV-vis和FTIR光谱进行了表征,并通过稳态研究了它们的光物理性质和时间分辨的发射光谱。所有配合物均在分配给
配体内跃迁的高能紫外区ILNN上显示出强吸收性,而较低能带则归因于
金属至
配体的电荷转移MLCTRe→NN。随着取代基变成更多的电子给体,与phen
配体相连的两个电子给体基团将配合物的发射最大值移至更高的能量,因此,3ILNN对3MLCT发射的贡献变得更加明显。通过协调Re(I)配合物上的吸电子PPh3
配体(phen的λmax= 515 nm,ϕ = 13%,τ= 2.52μs; phen的λmax= 512