SYNTHESIS AND CRYSTAL-STRUCTURE OF THE COMPLEX NEPTUNIUM(V) SELENATE CO(NH3)6NPO2(SEO4)2.3H2O

被引：0
作者：
GRIGOREV, MS
PLOTNIKOVA, TE
BUDANTSEVA, NA
FEDOSEEV, AM
YANOVSKII, AI
STRUCHKOV, YT
机构：
来源：
SOVIET RADIOCHEMISTRY | 1992年 / 34卷 / 05期
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中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The structure of the complex Np(V) selenate CO(NH3)6NpO2(SeO4)2.3H2O (I) has been determined [autodiffractometer Siemens P3/PC, lambda Mo Kalpha, 2136 reflections with 1 x 3sigma(I), space group C2/c, a = 11. 739(2), b = 8.607(1), c = 16.871(2) angstrom, beta = 104.67(1)0, Z = 4, R = 0. 038, R(W) = 0. 059]. Crystal packing is formed of infinite anionic layers [NpO2(SeO4)2H2O]n3n-, between which [Co(NH3)6]3+ cations and crystallization water molecules are located. The coordination polyhedron of Np is a pentagonal bipyramid (CN 7). The NpO2 group is nearly linear, Np - O bond lengths being 1. 847(5) angstrom. The structure of I is compared with that of (CH6N3)2UO2(SO4)2.3H2O and BeUO2(SO4)2.9H2O complexes containing similar anionic layers.
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页码：519 / 522
页数：4
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