Heterobimetallic Cluster-Based Coordination Polymers: Assembly,Structures and Third-Order Nonlinear Optical Properties |
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| Authors: | Chen Cao Shu-Jin Bao Dr Xiao-Yan Tang Ze-Ming Xu Chun-Yan Ni Prof Dr Jian-Ping Lang |
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| Institution: | 1. College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 RenAi Road, Suzhou, 215123 Jiangsu, P. R. China;2. School of Materials Engineering, Changshu Institute of Technology, Changshu, 215500 Jiangsu, P. R. China |
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| Abstract: | Reactions of (NH4)2WS4 with CuCN, CuCN/1,2-bis(4-pyridyl)propane (bppa) or Cu(MeCN)4]PF6/bppa under different reaction conditions afforded a set of two- or three-dimensional W/Cu/S cluster-based coordination polymers including {Et4N]2WS4Cu4(μ-CN)2(μ-I)2]}n ( 1 ), WS4Cu4(μ-CN)2(bppa)2]n ( 2 ) and {WS4Cu4(bppa)4](PF6)2}n ( 3 ), respectively. Compound 2 can be readily formed from reaction of 1 with bppa under solvothermal conditions. Compounds 1 and 2 feature two-dimensional networks with a “sql” topology, while 3 possesses a two-fold interpenetrated three-dimensional net with a rare “reo” topology. Compounds 1 – 3 in DMF exhibited different third-order nonlinear optical responses, and they all showed a reverse saturable absorption while 2 held a strong self-focusing effect. |
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| Keywords: | W/Cu/S cluster assembly coordination polymer crystal structure third-order nonlinear optical properties |
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