Yttrium polyoxometalates. Synthesis and characterization of a carbonate-encapsulated sandwich-type complex

被引：84

作者：

Fang, XK ^{[1
]}

Anderson, TM ^{[1
]}

Neiwert, WA ^{[1
]}

Hill, CL ^{[1
]}

机构：

[1] Emory Univ, Dept Chem, Atlanta, GA 30322 USA

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 26期

关键词：

D O I：

10.1021/ic0350842

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of A-alpha-PW(9)O(34)9- with YCl3 in an aqueous Na2CO3 solution produces a dianion-encapsulated A-type sandwich polyoxometalate, (YOH2)(3)(CO3)(A-alpha-PW9O34)(2)(11-). The X-ray structure of this complex reveals that three Y(III) ions are sandwiched between two A-alpha-PW9O349- moieties and that a carbonate dianion is encapsulated in the same plane as the three Y(III) atoms. The oxygen atoms of the CO32- are sitting at the midpoints of the sides of the triangle formed by the three Y(III) ions. P-31 and C-13 NMR studies confirm that this complex is significantly more stable than the analogous A-type sandwich polyoxometalates containing divalent metals.

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页码：8600 / 8602

页数：3

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