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两个基于[P_2W_(18)O_(62)]^(6-)和[V_(10)O_(28)]^(6-)超分子化合物的合成及性能研究 被引量:1

Assembly and properties of two supramolecular compounds based on [P_2W_(18)O_(62)]^(6-) and [V_(10)O_(28)]^(6-)
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摘要 采用水热合成技术,合成了两个基于不同类型的多金属氧酸盐和柔性双咪唑配体的超分子化合物(Hbtx)_3[H_3P_2W_(18)O_(62)]·H_2O(1)与(Hbtx)_3[H_3V_(10)O_(28)](2)(btx=1,4-双(咪唑基-1-甲基)苯),并通过X-射线单晶衍射、红外光谱以及元素分析等手段对化合物进行了表征.X-射线单晶衍射数据分析表明化合物1属于三斜晶系,P 1空间群,晶胞参数a=12.951(5),b=14.442(5),c=23.806(5),α=90.349(5)°,β=93.047(5)°,γ=108.160(5)°,V=4224(2)3,Z=2.化合物2属于单斜晶系,P21/n空间群,晶胞参数a=12.175(5),b=17.151(5),c=16.472(5),β=107.200(5)°,V=3285.8(19)3,Z=2.化合物1与2中,多酸阴离子[P2W18O62]6-和[V10O28]6-分别与柔性有机双咪唑配体btx通过分子间的氢键弱作用连接形成二维层状超分子网络. By using hydrothermal technique, two supramolecular compounds based on different polyoxometa- lates and flexible bis (imidazole) ligand, ( Hbtx)3 [ H3 P2 W18 O62 ] · H2O ( 1 ) and ( Hbtx)3 [ H3 V10 O28 ] (2) (btx = 1,4- bis( imidazol- 1 -ylmethyl)benzene), and characterized by single- crystal X- ray diffraction, IR spectra and elemental analyses. Structural analysis shows that the compound 1 crystallizes in space group P 1, a = 12. 951 (5) A,b = 14. 442(5) A,c =23. 806(5) A,α =90. 349(5) °,β =93. 047(5) °,γ = 108. 160(5) °, V =4224(2)A3 ,Z =2. Compound 2 crystallizes in space group P21/n,a = 12. 175(5 )A,b = 17. 151 (5)A,c = 16. 472 ( 5 ) A ,β = 107.200 ( 5 ) °, V = 3285.8 ( 19 ) A3, Z = 2. In compounds 1 and 2, polyoxoanions[ P2 W18 O62 6 - and [V10O28 ]6-link organic ligands btx through hydrogen bonding interactions to construct two -dimensional layers.
出处 《渤海大学学报(自然科学版)》 CAS 2015年第4期327-332,共6页 Journal of Bohai University:Natural Science Edition
基金 国家自然科学基金资助项目(No:21571023) 辽宁省高等学校青年学者成长计划(No:LJQ2012097)
关键词 多金属氧酸盐 水热合成 1 4-双(咪唑基-1-甲基)苯 光催化 polyoxometalate hydrothermal syntheses 1,4 - bis( imidazol - 1 - ylmethyl ) benzene photo-catalytic activity
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