Abstract：A novel cadmium complexes of {[Cd(H2biim)2(SO4)]·3H2O}n (1) (H2biim=2,2’-biimidazole) was synthesized by hydrothermal reaction of 3CdSO4·8H2O and 2,2’-biimidazole ligand. The complex was built up by [Cd(H2biim)2]2+ units bridged sequentially by SO2-4 anions to form 1D zigzag chains parallel to the c-axis. The H2biim ligands were attached to the 1D chain as branches of the chain by coordinating to Cd2+ at two sides of the chain. The chains were held together by π—π interaction and O—H…O interactions, thus yielding a 3D extended supramolecular network. The responses of symmetric stretching vibration of SO2-4, N—C single bond, NC double bond and anti-symmetric stretching vibration of N—C single bond were detected in 2D IR correlation spectra under thermal perturbation. The complex exhibited strong blue emission peak at 498 nm (λex=397 nm) that can be assigned to a ligand-to-metal charge-transfer (LMCT) band.
邓 松，葛素志，刘 琦，胡恒彬，孙燕琼*，陈义平，张汉辉 . 一维硫酸镉-双咪唑配合物的合成、结构及谱学性质研究[J]. 光谱学与光谱分析, 2012, 32(09): 2482-2486.
DENG Song, GE Su-zhi, LIU Qi, HU Heng-bin, SUN Yan-qiong*, CHEN Yi-ping, ZHANG Han-hui. Synthesis, Structure and Special Study of 1D Cadmium Sulfate-H2biim Coordination Polymer. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(09): 2482-2486.
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