Synthesis and Characterization of Se4Nb2O13: A New Ternary Se4+−Nb5+−Oxide with Monoselenite and Diselenite Groups
Synthesis and Characterization of Se4Nb2O13: A New Ternary Se4+−Nb5+−Oxide with Monoselenite and Diselenite Groups
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DOI：
10.1021/cm970633l
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发表时间：
1998-01
影响因子：
8.6
通讯作者：
P. and;D. O′Hare
中科院分区：
文献类型：
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作者：
P. and;D. O′Hare
以 SeO2 和 Nb2O5 为原料合成了一种新的非中心对称三元亚硒酸盐 Se4Nb2O13。晶体数据：Se4Nb2O13，Mr = 709.64，单斜晶系，空间群 Pa (No. 7)，a = 7.555(6) A，b = 6.637(8) A，c = 11.377(5) A，β = 109.23(3)°，V = 538.64(2) A3 (T = 200 K)，Z = 2、R(F)=6.44%， RW(F) = 7.12%。该化合物由多排角连接的 NbO6 八面体组成，这些八面体也通过单亚硒酸盐、SeO3 和二亚硒酸盐、Se2O5 基团连接。
A new noncentrosymmetric ternary selenite, Se4Nb2O13, has been synthesized from SeO2 and Nb2O5. Crystal data: Se4Nb2O13, Mr = 709.64, monoclinic, space group Pa (No. 7), a = 7.555(6) A, b = 6.637(8) A, c = 11.377(5) A, β = 109.23(3)°, V = 538.64(2) A3 (T = 200 K), Z = 2, R(F) = 6.44%, Rw(F) = 7.12%. The compound consists of rows of corner-linked NbO6 octahedra that are also connected through monoselenite, SeO3, and diselenite, Se2O5, groups.