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α-B-Keggin型杂多化合物K₅H[Co₄(VW₉O₃₃)₂]·5H₂O的合成和结构

Synthesis and Structure of α - B - Keggin Type Heteropoly Complex K₅H[Co₄（VW₉O₃3）₂]@5H₂O

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【Author】 YANG Qi-Hua DAI Hui-Cong LIU Jing-Fu ZHU Zhi-Ping(Department of Chemistry, Northeast Normal University, Changchun, 130024)XING Yan LING Yong - Hua JIA Heng - Qing( Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences, Changchun, 130022)

【机构】东北师范大学化学系；中国科学院长春应用化学研究所；中国科学院长春应用化学研究所长春130024中国科学院大连化学物理研究所博士后流动站；长春130024；长春130022；长春130022；

【摘要】合成了新化合物K₅H[Co₄(VW₉O₃₃)·5H₂O,并运用IR,UV-ViS,DTA和单晶X射线衍射对其结构进行了表征.测定结果证实标题化合物具有α-B-Keggin型结构,两个(VW₉O₃₃^7-结构单元由四个Co（Ⅱ）O₆ 八面体连接.杂多化合物属单斜晶系P2_1/n,a=1.2307（3）nm,b=2.1250（4）nm,c=1.5817（3）nm,β=91.86（3）°,V=4.1343（14）nm³,R=0.0895,R_w=0.2180.更多还原

【Abstract】 A new complex K5H[ Co4 (VW9O33)2]·5H2 O was prepared and its structure was determined by X - ray diffraction analysis. The anion has α - B - Keggin structure. Two (VW9O33)7- moieties (α -B isomers) are linked via four Co(11)O6 groups. The single crystal of the title complex is monoclinic P21/n with a = 1.2307(3)nm, b = 2.1250(4)nm, c = 1.5817(3)nm, β = 91.86(3)°, V = 4.1343 (14)nm3, R = 0.0895, Rw = 0.2180.更多还原