THE STRUCTURE OF A NEW OCTAHEDRAL FLUORIDE COMPLEX OF NIOBIUM (Me4N)2[Nb6F6Br6(H2O)2Cl4]•6H2O

被引：3

作者：

Naumov, N. G. ^{[1
]}

Cordier, S. ^{[2
]}

Perrin, C. ^{[2
]}

Artemkina, S. B. ^{[1
]}

机构：

[1] Russian Acad Sci, AV Nikolaev Inst Inorgan Chem, Siberian Div, Novosibirsk, Russia

[2] Univ Rennes 1, CNRS, UMR 6226, Rennes, France

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 2008年 / 49卷 / 06期

关键词：

niobium; fluorides; cluster; synthesis; crystal structure;

D O I：

10.1007/s10947-008-0190-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The substitution reaction of thiocyanide groups of the complex K-4[Nb6F6Br6(NCS)(6)] in aqueous hydrochloric acid has afforded a new fluoride cluster anion [(Nb6F6Br6Cl4a)-Br-i-Cl-i(H2O)(2)(a)](2-) isolated as the salt (Me4N)(2)[Nb6F6Br6Cl4(H2O)(2)]center dot 6H(2)O (space group R3m, a = 11.230(5) angstrom, c = 26.230(5) angstrom, V = 2865(2) angstrom(3), Z = 3, R1 = 0.0362, R2w = 0.0886). The anion contains the cluster core Nb6F6Br6 having ordered "inner" ligands. Difference in the atomic radii of "inner" ligands causes a significant distortion of the metal cluster along the three-fold axis.

引用

页码：1124 / 1127

页数：4

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