Syntheses, crystal structures and fluorescent properties of R,R-DIOP based copper (I) and cadmium (II) complexes {R,R-DIOP = (4R,5R)-trans-4,5-bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxalane}

摘要: Abstract Two chiral complexes, [CuCl(R,R-DIOP)]2 (1) and [CdCl2(R,R-DIOP)]n (2), have been synthesized by reaction of CuCl or CdCl2 with diphosphine ligand R,R-DIOP under argon. They were characterized elemental analysis, IR, UV–vis, fluorescence spectra single-crystal X-ray diffraction. analysis indicates that the metal centers (CuI for 1 CdII 2) are both in distorted tetrahedral environment, but is a binuclear complex which CuI ions surrounded two μ2-bridging chloride bismonodentate coordinated ligands; while 2 helical polymer along b axis each ion P atoms ligands. Both them crystallize monoclinic system, space group 21, a = 9.8855(7) A, b = 37.857(3) A, c = 23.9585(16) A, β = 92.0920(10)°, Z = 6 a = 10.1740(8) A, b = 13.9899(11) A, c = 11.4007(9) A, β = 108.3690(10)°, Z = 2 (2). Fluorescence measurements show can emits much strong blue emission than at room temperature solid state.