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Hydrothermal Synthesis,Crystal Structure and Spectroscopic Investigations of [Y(C_6NO_2H_5)_3(H_2O)_2]_n(1.5nZnCl_4)·nH_2O with Unprecedented Polycationic Chains


  A new heterometallic 4f-3d complex [Y(C6NO2H5)3(H2O)2]n(1.5nZnCl4)·nH2O(1), was synthesized via a hydrothermal reaction and structurally characterized. Complex 1 crystallized in the monoclinic system with space group P21/c: a=0.94847(9) nm, b=2.0947(2) nm, c=1.6001(2) nm, β=104.467(2)°, V=3.0781(5) nm3, Mr=823.04, Dc=1.776 g/cm3, S=1.009, μ(Mo Kα)=3.603 mm-1, F(000)=1632, R=0.0787, and wR=0.2273. Complex 1, with four formula units in a cell, was characteristic of a one-dimensional polycationic chain-like structure. Photoluminescent investigation showed that the title complex displayed a strong emission in the blue region, which was attributed to the intraligand π-π* transition of the nicotinic ligands. Optical absorption spectrum of complex 1 revealed the presence of a wide optical bandgap of 4.17 eV.……   
[关键词]:Crystal structure;Yttrium;Nicotinic acid;Rare earth;Zinc
[文献类型]:期刊
[文献出处]: 《Chemical Research in Chinese Universities2008年05期
[格式]:PDF原版; EPUB自适应版(需下载客户端)