Pyrochlore-type tin niobate.
Pyrochlore-type tin niobate.
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烧绿石型铌酸锡。
DOI:
10.1107/s0108270101010320
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
J. Rocha
中科院分区:
文献类型:
--
作者:
L. P. Cruz;J. Savariault;J. Rocha
A single crystal of Sn(1.59)Nb(1.84)O(6.35) was grown at 1273 K from a mixture of sodium niobate and tin(II) chloride. The structure is of pyrochlore type A(2)B(2)O(7). The tin is partially oxidized to tin(IV) and competes with niobium for the occupation of site B. The stereoactivity of the Sn(2+) lone pair induces displacement of tin towards the O atoms of the tunnel.