Synthesis,Crystal Structure,and Photoluminescent and Semiconductive Properties of [La(C6NO2H5)3-(H2O)2]2n·(nH5O2)(nHgCl5)(2nHgCl4)·(2nH2O)

被引：0
|
作者：
陈文通 [1 ]
黄锦顺 [2 ]
刘冬生 [1 ]
刘九辉 [1 ]
应少明 [1 ]
机构：
[1] College of Chemistry and Chemical Engineering,Jiangxi Province Key Laboratory of Coordination Chemistry,Jinggangshan University
[2] State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,The Chinese Academy of Sciences
来源：
结构化学 | 2008年 / 11期
关键词：
crystal structure; isonicotinic acid; lanthanide; lanthanum; photoluminescence;
D O I：
10.14102/j.cnki.0254-5861.2008.11.008
中图分类号：
O614.331 [];
学科分类号：
070301 ; 081704 ;
摘要：
A new heterometallic 4f-5d inorganic-organic metal-isonicotinic acid complex [La(C6NO2H5)3(H2O)2]2n·(nH5O2)(nHgCl5)(2nHgCl4)·(2nH2O) 1 has been synthesized via hydro-thermal reaction and structurally characterized. Complex 1 crystallizes in the space group C2/c of monoclinic system with four formula units in a cell:a =24.140(7),b=20.884(7),c=15.462(2),β=127.46(1)°,V=6187(3)3,C36H47Cl13Hg3La2N6O20,Mr=2224.24,Dc=2.388 g/cm3,Z=4,T=293(2) K,μ(MoKα)=9.401 mm-1,F(000)=4160 and R/wR=0.0376/0.0636 for 4130 observed reflections (I > 2σ(I)) and 5617 unique reflections. Complex 1 is characteristic of a one-dimensional polycationic chain-like structure. Photoluminescent investigation reveals that the title complex displays interesting emissions in violet and orange regions. The luminescence spectra show stronger orange emission than violet emission. Optical absorption spectra of 1 reveal the presence of a wide optical bandgap of 3.41 eV.
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收藏
页码：1299 / 1304
页数：6
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