SYNTHESIS AND CRYSTAL-STRUCTURE OF NA10[P4(NH)6N4](NH2)6(NH3)0.5 WITH AN ADAMANTANE-LIKE ANION [P4(NH)6N4]4-

被引:26
|
作者
JACOBS, H
POLLOK, S
GOLINSKI, F
机构
[1] Fachbereich Chemie der, Universität Dortmund, Dortmund
来源
关键词
SODIUM IMIDO NITRIDO PHOSPHATE(V); PREPARATION; CRYSTAL STRUCTURE;
D O I
10.1002/zaac.19946200714
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Crystals of Na10[P4(NH)6N4](NH2)6(NH3)0.5 were obtained by the reaction Of P3N5 with NaNH2 (molar ratio 1: 20) within 5 d at 600-degrees-C in autoclaves. The following data characterize X-ray investigations: Fm3mBAR, Z = 8, a = 15.423(2) angstrom, Z(F-0(2)) = 261 with F-0(2) greater-than-or-equal-to 3 sigma(F-0(2)) Z(Variables) = 27, R/R(w) = 0.086/0.089 The compound contains the hitherto unknown anion [P4(NH)6N4]4-, which resembles adamantane. The total structure can be described as follows: The centers of gravity of units of [Na8(NH2)6(NH3)]2+ - 8Na+ on the corners of a cube, 6NH2- on the ones of an inscribed octahedron with NH3 in the center - follow the motif of a cubic-closest packed arrangement. Units of [Na12(NH2)6]6+ - 12Na+ on the corners of a cuboctahedron and 6NH2- on the ones of an inscribed octahedron - occupy all octahedral and those of [P4(NH)6N4]4- all tetrahedral sites.
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页码:1213 / 1218
页数:6
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