An Uncommon Complex Cation Stabilized by a Niobium Cluster Anion: [Al(CH3CN)5Br][Nb6Cl12iBr6a]•3CH3CN

被引：5
|
作者：
Dartsch, Ina [1 ]
Koenig, Jonas [1 ]
Koeckerling, Martin [1 ]
机构：
[1] Univ Rostock, Inst Chem, Albert Einstein Str 3a, D-18059 Rostock, Germany
来源：
JOURNAL OF CLUSTER SCIENCE | 2018年 / 29卷 / 02期
关键词：
Niobium; Octahedral hexaniobium cluster; Aluminum; Halide; Synthesis; X-ray structure; POLYNUCLEAR METAL-HALIDES; MOLECULAR-STRUCTURE; CRYSTAL-STRUCTURES; TANTALUM CLUSTERS; CHEMISTRY; HEXANUCLEAR; MOLYBDENUM; SPECTRA; UNITS; HEXACHLORO(DODECA-MU-CHLORO-HEXANIOBATE);
D O I：
10.1007/s10876-018-1337-y
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A new niobium cluster compound, [Al(CH3CN)(5)Br][(Nb6Cl12Br6a)-Br-i]center dot 3CH(3)CN was synthesized and characterized by single-crystal X-ray diffraction and IR spectroscopy. Crystals of this cluster compound have triclinic symmetry with a = 8.8759(7), b = 12.300(1), c = 12.585(1) , alpha = 83.240(4), beta = 71.231(4), and gamma = 72.474(4)A degrees. In this compound the charge of the mixed halide cluster anion, [(Nb6Cl12Br6a)-Br-i](2-), is compensated by that of the heteroleptic [Al(CH3CN)(5)Br](2+) complex cation, which has close to C-4v symmetry. This complex cation can be considered as rather uncommon, since before only two compounds were known, which contain the chlorido analogue.
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页码：319 / 323
页数：5
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