摘要
本文报道了十钒酸盐Ｋ６Ｖ１０Ｏ２８·９Ｈ２Ｏ的合成及单晶结构分析结果。晶体属单斜晶系，Ｐ２１／ｎ群，ａ＝１．０５３１（８）ｎｍ，ｂ＝１．７４２３（５）ｎｍ，ｃ＝１．８３６（１）ｎｍ，β＝９３．２６（６）°，μ＝３４．２４ｃｍ－１，Ｚ＝４。结构由直接法解出，全矩阵最小二乘法修正至Ｒ＝０．０４８。十钒酸盐结构单元是由１０个ＶＯ６变形八面体构成的Ｖ１０Ｏ２８６－簇阴离子，簇阴离子间排列阳离子Ｋ＋和水分子。
ecavanadate K6V10O28·9H2O was synthesized from the system of KOHV2O5H3PO4H2O.The crystal is monoclinic with space group P21/n having unit cell with a=1.0531(8)nm,b=1.7423(5)nm,c=1.836(1)nm,β=93.25(6)°,μ=34.24cm-1,Z=4.The structure was solved by direct method and refined by full-matrix least-squares method to R=0.048.The decavanadate contains cluster anion V10O6-28 which is formed by 10 distorted VO6 octohedron and there are four type of oxygen atoms:apical oxygen and three kind of bridge oxygen which coordinate to two,three and six vanadium atoms respectively.
出处
《化学研究与应用》
CAS
CSCD
1997年第6期576-581,共6页
Chemical Research and Application
基金
国家自然科学基金
结构化学国家重点实验室资助
