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Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
A novel tetranuclear copper(I) sulfanide complex with bis(diphenylphosphino)amine
Wen-Na Zhao1, Lei Han, Cheng-Cai Luo
1Key Laboratory for Molecular Design and Nutrition Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, Zhejiang 315100, People's Republic of China. wnzhao@nit.net.cn
Abstract:
The title novel mixed mu(2)-SH- and mu(3)-SH-bridged tetranuclear copper(I) complex, cyclo-bis[mu(2)-bis(diphenylphosphino)amine]di-mu(3)-sulfanido-di-mu(2)-sulfanido-tetracopper(I) methanol disolvate, [Cu(4)(SH)(4)(C(24)H(21)NP(2))(2)].2CH(3)OH, has crystallographically imposed centrosymmetry and affords a neutral Cu(4)S(4) core with a distorted step-like structure. The distances of 2.8458 (16) and 2.8179 (16) A between copper(I) centres indicate the presence of ligand-supported Cu...Cu interactions. Strong N-H...O and O-H...S hydrogen bonds between the tetranuclear cluster and methanol solvent molecules result in a two-dimensional hydrogen-bonded supramolecular network. This complex is the first example of a coinage tetranuclear metal complex with mixed mu(2)-SH- and mu(3)-SH-bridged chromophores.
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