STRUCTURE OF THE 2ND POLYMORPH OF NIOBIUM PENTACHLORIDE

被引：21
作者：
COTTON, FA [1 ]
KIBALA, PA [1 ]
MATUSZ, M [1 ]
SANDOR, RBW [1 ]
机构：
[1] TEXAS A&M UNIV SYST,MOLEC STRUCT & BONDING LAB,COLLEGE STN,TX 77843
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1991年 / 47卷
关键词：
D O I：
10.1107/S0108270191000239
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
(1) NbCl5, M(r) = 270.17, monoclinic, P2(1)/n, a = 7.785 (2), b = 10.201 (2), c = 8.074 (2) angstrom, beta = 90.58 (2)-degrees, V = 641.2 (5) angstrom 3, Z = 4, D(x) = 2.80 g cm-3, lambda(Mo K-alpha) = 0.71073 angstrom, mu = 37.70 cm-1, F(000) = 504, T = 294 K, R = 0.017 for 1101 observed reflections. Two NbCl5 units form an edge-sharing bioctahedron. The Nb atoms are separated by 3.9881 (3) angstrom. The mean Nb-Cl(bridge) distance is 2.567 (1) angstrom and the mean non-bridging equatorial and axial Nb-Cl bond lengths are 2.246 (2) and 2.292 (1) angstrom, respectively. The Nb-Cl(bridge)-Nb angle is 101.93 (2)-degrees and the Cl(bridge)-Nb-Cl(bridge) angle is 78.07 (2)-degrees.
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页码：2435 / 2437
页数：3
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