配位聚合物[HgI2(bpea)]n[bpea=1,2-双(4-吡啶基)乙烷]的合成结构表征和光学折射效应 |
Synthesis, Structural Characterization and Optical Refractive Effect of Coordination Polymer [HgI2(bpea)]n(bpea=1,2- bis(4-pyridyl)ethane) |
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摘要: 制备4,4-连吡啶基二卤加和物[MX2(4,4′-bipy)]n仍然有较大困难.这类化合物数量不多且已报道的多为难处理的微晶材料.本文在室温下通过简单的操作合成了新的碘化汞连吡啶乙烷加和物[HgI2(bpea)]n,X-射线单晶衍射分析表明其中的汞原子通过与两个碘原子以及吡啶乙烷的两个氮原子配位形成扭曲的四面体构型.每个HgI2单元由bpea桥连形成锯齿状链.其非线性光学性质用8-纳秒激光在532nm波长进行了研究.该 |
关键词: 配位聚合物 汞加和物 非线性光学性质 锯齿状结构 |
基金项目: 国家自然科学基金资助项目(No.2963104020001006). |
Abstract: It is still a challenge to prepare polymeric 4,4′-bipyridyl dihalide adducts [MX2(4,4′-bipy)]n. The number of this species is still scarce and those reported results are mostly intractable microcrystalline materials. Under facile conditions, novel mercury iodide adducts [HgI2(bpea)]n 1[bpea=1, 2-bis(4-pyridyl)ethane] was synthesized in THF at room temperature. X-ray single crystal diffraction analyses showed that 1 exhibits distorted tetrahedron, and in this structure the metal mercury atom is complexed by two nitrogen atoms from two bpea ligands and two iodide atoms. And then each HgI2 unit was bridged by bpea to form zigzag chain structure. The nonlinear optical (NLO) properties of 1 were studied firstly with an 8 ns-pulsed laser at 532nm. Its optical responses to the incident light exhibit considerably optical absorptive and strong self focusing effect with α2=1.1× 10-11m·W-1, n2=5.29× 10-18m2·W-1. |
Keywords: coordination polymer mercury adduct nonlinear optical properties zigzag structure |
投稿时间:2001-05-24 修订日期:2001-06-15 |
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牛云垠,宋瑛林,侯红卫,郑和根,FUN Hoong-Kun,忻新泉.配位聚合物[HgI2(bpea)]n[bpea=1,2-双(4-吡啶基)乙烷]的合成结构表征和光学折射效应[J].无机化学学报,2001,17(5):723-729. |
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