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反应温度诱导的两个类三明治银配合物的异构

Reaction Temperature Induced Structural Transformation of Two Sandwich-Like Ag Complexes
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摘要 通过固定银离子、2,2′-联吡啶-4,4′-二羧酸(H2bina)和1,3-二(4-吡啶基)丙烷(bpp)等原料配比和反应时间,在不同反应温度下分别制备了基于Ag2簇单元的配合物{[Ag2(bpp)2][Ag2(bina)2(H2O)2].6H2O}n(1)和含Ag4簇的配合物{[Ag4(bpp)2(bina)2(H2O)2].4H2O}n(2)。结构研究与性质测试对比表明这两个类三明治型配合物不仅晶体学参数、银离子配位环境、柔性配体构象、客体水分子数目发生了变化,而且荧光及热稳定性各异。 The solution reactions of Ag(Ⅰ) with 2,2′-biisonicotinic acid(H2bina) in the presence of 1,3-di(4-pyridyl)propane(bpp) at different temperature generate two sandwich-like complexes,{[Ag2(bpp)2][Ag2(bina)2(H2O)2]·6H2O}n(1,based on Ag2 clusters) and {[Ag4(bpp)2(bina)2(H2O)2]·4H2O}n(2,based on Ag4 clusters).Structural and property studies reveal two sandwich-like complexes have different crystallographic parameters,coordination environment of Ag(Ⅰ) atoms,the conformations of flexible ligands and the number of solvent molecules,as well as their fluorescence spectrum and thermal stability.CCDC: 886024.
出处 《无机化学学报》 SCIE CAS CSCD 北大核心 2012年第8期1651-1655,共5页 Chinese Journal of Inorganic Chemistry
基金 国家自然科学基金(No.21101077) 广东自然科学基金(No.S2011040001705)资助项目
关键词 银配合物 柔性配体 类三明治 Ag(Ⅰ) complex; flexible ligand; sandwich-like;
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