Silver(Ⅰ)Complexes with Mixed Diphosphine Ligands:Syntheses,Characterization and Spectroscopic Properties  

作　　者：王英锋 崔洋哲 李中峰 韩洪亮 刘敏 金琼花 

机构地区：[1]Department of Chemistry, Capital Normal University [2]The College of Materials Science and Engineering, Beijing University of Technology

出　　处：《Chinese Journal of Structural Chemistry》2017年第5期812-818,共7页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(Nos.21171119 and 81573822);the National High Technology Research and Development Program 863 of China(No.2012AA063201);the Technology Foundation for Selected Overseas Chinese,the Beijing Municipal Education Commission(KM201510028006);the Scientific Research Base Development Program of the Beijing Municipal Commission of Education

摘　　要：Two novel silver（I） complexes [Ag（DPEphos）（dppe）]Cl O4（1） and [Ag（DPEphos）-（dppe）]SCN（2）（DPEphos = bis[2-（diphenylphosphino）phenyl]ether, dppe = bis（diphenylphosphino）ethane） are synthesized and characterized by IR, 1H/31 P NMR spectroscopy and fluorescence spectra. Complex 1 crystallizes in monoclinic, space group P21/c with a = 14.8821（12）, b = 12.6620（11）, c = 36.025（3） ？, β = 112.633（2）°, V = 6265.7（9） ？3, C62H52 Cl O5P4Ag, Mr = 1144.24, Z = 4, Dc = 1.213 g/cm3, F（000） = 2352, μ = 0.510 mm-1, the final R = 0.0616 and w R = 0.1192 for 4003 observed reflections（I 〉 2σ（I））. Complex 2 crystallizes in monoclinic, space group P21/c with a = 14.9021（13）, b = 12.6100（11）, c = 35.920（3） A, β = 112.852（2）°, V = 6220.2（9） A3, C63H52NOP4 SAg, Mr = 1102.87, Z = 4, Dc = 1.178 g/cm3, F（000） = 2272, μ = 0.498 mm-1, the final R = 0.0912 and w R = 0.1706 for 3287 observed reflections（I 〉 2σ（I））. In mono-nuclear complexes 1 and 2, the Ag（I） atom is chelated by DPEphos and dppe ligand. In the 31 P NMR spectra, there are splitting signals（doublets or triplets） which can be attributed to the coupling of the 107,109Ag–31P（from DPEphos or dppe ligand）. All the emission peaks of these complexes are attributed to ligand-centered（π-π＊） transitions.Two novel silver（I） complexes [Ag（DPEphos）（dppe）]Cl O4（1） and [Ag（DPEphos）-（dppe）]SCN（2）（DPEphos = bis[2-（diphenylphosphino）phenyl]ether, dppe = bis（diphenylphosphino）ethane） are synthesized and characterized by IR, 1H/31 P NMR spectroscopy and fluorescence spectra. Complex 1 crystallizes in monoclinic, space group P21/c with a = 14.8821（12）, b = 12.6620（11）, c = 36.025（3） ？, β = 112.633（2）°, V = 6265.7（9） ？3, C62H52 Cl O5P4Ag, Mr = 1144.24, Z = 4, Dc = 1.213 g/cm3, F（000） = 2352, μ = 0.510 mm-1, the final R = 0.0616 and w R = 0.1192 for 4003 observed reflections（I 〉 2σ（I））. Complex 2 crystallizes in monoclinic, space group P21/c with a = 14.9021（13）, b = 12.6100（11）, c = 35.920（3） A, β = 112.852（2）°, V = 6220.2（9） A3, C63H52NOP4 SAg, Mr = 1102.87, Z = 4, Dc = 1.178 g/cm3, F（000） = 2272, μ = 0.498 mm-1, the final R = 0.0912 and w R = 0.1706 for 3287 observed reflections（I 〉 2σ（I））. In mono-nuclear complexes 1 and 2, the Ag（I） atom is chelated by DPEphos and dppe ligand. In the 31 P NMR spectra, there are splitting signals（doublets or triplets） which can be attributed to the coupling of the 107,109Ag–31P（from DPEphos or dppe ligand）. All the emission peaks of these complexes are attributed to ligand-centered（π-π＊） transitions.

关 键 词：SILVER crystal structures bis[2-（diphenylphosphino）phenyl]ether bis（diphenylphosphino）ethane luminescence 

分 类 号：O641.4[理学—物理化学]