A new polyborate anion, [B7O9(OH)6]3- : Self assembly, XRD and thermal properties of s-fac-[Co(dien)2][B7O9(OH)6]•9H2O

被引：16

作者：

Altahan, Mohammed A. ^{[1
]}

Beckett, Michael A. ^{[1
]}

Coles, Simon J. ^{[2
]}

Horton, Peter N. ^{[2
]}

机构：

[1] Bangor Univ, Sch Chem, Bangor LL57 2UW, Gwynedd, Wales

[2] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2015年 / 59卷

关键词：

B7O9(OH)(6)](3-); Heptaborate(3-); s-fac-[Co(dien)](3+); Self-assembly; XRD structure; HYDROGEN-BONDED PENTABORATE; CRYSTAL-STRUCTURE; STRUCTURAL-CHARACTERIZATION; MOLECULAR-STRUCTURE; NONMETAL CATIONS; AMINE ADDUCTS; 1ST EXAMPLES; X-RAY; BORATE; SALTS;

D O I：

10.1016/j.inoche.2015.07.011

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The title compound, 3-facAco(dien)(2)][B7O9(OH)(6)]center dot 9H(2)O (1) (dien = HN(CH2CH2NH2)(2)), has been prepared as a crystalline solid in moderate yield (35%) from the reaction of B(OH)(3) with [Co(dien)(2)][OH](3) in aqueous solution (10:1 ratio). The structure contains a novel polyborate anion [B7O9(OH)(6)](3-) which is structurally based on the known 'ribbon' isomer of [B7O9(OH)(5)](2-), with an additional [OH](-) group coordinated to a B atom in one of the outer boroxole rings. Compound 1 is formed by a self-assembly process in which the cation and anion mutually template themselves from equilibrium mixtures under reaction conditions. The [B7O9(OH)(6)](3-) anions are Hbonded to each other in layers with 'cavities' suitable for the [Co(dien](2)](3+) complex. Three[B7O9(OH)(6)](3-) anions are in the secondary coordination sphere (via H-bonds) of each cation, with each anion H-bonded to three cations. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：95 / 98

页数：4

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