Structural characterization, DFT studies and luminescent properties of dinuclear copper(I)-diimine complexes with the S-shape configurations
作者:Dan Zheng、Ting-Hong Huang、Cheng Luo、Jing Tang
DOI:10.1016/j.ica.2021.120639
日期:2022.1
Three dinuclear Cu(I) complexes, [Cu2(pnd)(PPh3)4](BF4)2 (1), [Cu2(pnd)(dppp)2] (BF4)2 (2), and [Cu2(pnd)(DPEphos)2](BF4)2 (3) (PPh3 = triphenylphosphine, dppp = 1, 3-bis (diphenylphosphino)propane, DPEphos = bis(2-diphenylphosphinophenyl)ether, pnd = N, N’-bis (pyridin-2-ylmethylene)naphthyl-1, 5-diimine), have been prepared and characterized by IR, 1H NMR, 31P NMR, 13C NMR, XRD, elemental analysis
三种双核Cu(I)配合物,[Cu 2 (pnd)(PPh 3 ) 4 ](BF 4 ) 2 (1),[Cu 2 (pnd)(dppp) 2 ] (BF 4 ) 2 (2),和[Cu 2 (pnd)(DPEphos) 2 ](BF 4 ) 2 (3) (PPh 3 = 三苯基膦,dppp = 1,3-双(二苯基膦)丙烷,DPEphos = 双(2-二苯基膦基)醚,pnd = N,ñ “ -双(吡啶-2-基亚甲基)萘基-1,5-二亚胺),已经制备和表征通过IR,1 H NMR,31 P NMR、13 C NMR、XRD、元素分析和X射线晶体结构分析。的结构分析揭示了在具有柔性PND 1 - 3作用在反桥接配位模式连接两个铜+离子,形成一个S形的构象,而每一个的Cu(I)离子是四配位N2P2,采用扭曲-四面体几何。DFT计算表明,复合物的候牟司1 - 3主要位于上铜d-轨道和膦配体,以及 pnd