1356918-52-9Relevant academic research and scientific papers
Construction of heterobimetallic Cd(Hg)/Cu(Ag)/S(Se) complexes from homoleptic [Hg(EPh)2] molecules and [Cd(EPh)4] 2- anions (E = S, Se)
Xu, Chao,Zhang, Jing-Jing,Duan, Tai-Ke,Chen, Qun,Leung, Wa-Hung,Zhang, Qian-Feng
, p. 185 - 193 (2012/05/04)
Treatment of [Hg(EPh)2] with 2 equivalents of [Cu(PPh 3)2Cl] gave the trinuclear Hg/Cu/S(Se) complexes [Hg(μ-EPh)2{CuCl(PPh3)2}] (E = S 1, Se 2) in which the two copper centers are ligated by the [PhE]- ligands of the [Hg(EPh)2]. A similar reaction of [Hg(EPh)2] with [Ag(PPh3)2Cl] gave rise to isolation of the dinuclear compounds [Hg(SePh)(μ-SePh)(μ-Cl)Ag(PPh3)2] (E = S 3, Se 4) in which the coordination geometry of the mercury atom is a slightly distorted T-shape. Reactions of the homoleptic tetrahedral species [Cd(EPh) 4]2- with 2 equivalents of [Cu(PPh3) 2NO3] afforded the neutral linear trinuclear complexes [Cd(μ-EPh)4{Cu(PPh3)2}2] (E = S 5, Se 6) in which two [Cu(PPh3)2]+ fragments bind with the opposite edges of a tetrahedral [Cd(EPh)4]2- moiety via the sulfur or selenium atoms of the PhE- ligands. A similar reaction of [Me4N]2[Cd(SPh)4] with 2 equivalents of [Ag(PPh3)2NO3] gave an analogous complex [Cd(μ-SPh)4{Ag(PPh3)2}2] (7), whereas the reaction of [Me4N]2[Cd(EPh)4] with an equivalent amount of [Ag(PPh3)2NO3] under similar conditions afforded the neutral heptanuclear complexes [Cd 3(μ-EPh)6(μ3-EPh)4(AgPPh 3)4] (E = S 8, Se 9) which comprise three [(AgPPh 3)]+ fragments side-ligated and one [(AgPPh 3)]+ fragment side-capped with the trinuclear cadmium-thio(seleno)phenolate [Cd3(μ-EPh) 9(μ3-EPh)]4- moieties via the sulfur atoms of thiophenolates in 8 and the selenium atoms of selenophenolates in 9. The nonlinear optical properties of two neutral heptanuclear complexes 8 and 9 have been examined by z-scan techniques with 7-ns pulses at 532 nm.
