Group 1 coordination chains and hexagonal networks of host cyclotriveratrylene with halogenated monocarbaborane anions
Group 1 coordination chains and hexagonal networks of host cyclotriveratrylene with halogenated monocarbaborane anions
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DOI：
10.1002/chem.200305500
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发表时间：
2004-05-03
影响因子：
4.3
通讯作者：
Hardie, ML
中科院分区：
文献类型：
--
作者：
Ahmad, R;Franken, A;Hardie, ML
卤代碳硼烷离子[CB 11 H6 X6]−（其中X=Cl或Br）与主体分子环三藜芦烯（CTV）和第1族金属阳离子结合，得到晶体材料。配合物[Na（ctv）（H2O）（CB 11 H6 X6）]（CF 3CH 2 OH）具有手性Na-CTV配位链，其中[CB 11 H6 X6]−离子与Na+离子络合，以及CTV分子腔。配位链通过氢键结合在一起，形成了一个褶皱的二维六边形网格结构。[K（ctv）（CB_（11）H_6Cl_6）（CF_3CH_2 OH）_（0.5）]基本上是同构的。配合物[Rb（ctv）（CB_（11）H_6Br_6）（H_2O）]和[Cs（ctv）（CB_（11）H_6X_6）（CH_3CN）]是具有相关畸变六方网格结构的配位聚合物。使用N，N′-二甲基甲酰胺（DMF）作为溶剂导致完全不同类型的组装，[Na 2（dmf）4（H2O）2（ctv）][（dmf）0.5（ctv）][CB 11 H6 Br 6] 2显示出不寻常的{Na-μ-（dmf）-Na}桥，并再次形成扭曲的六方配位聚合物。
Halogenated carbaborane ions [CB11H6X6]−in which X=Cl or Br have been combined with the host molecule cyclotriveratrylene (CTV) and Group 1 metal cations to give crystalline materials. The complexes [Na(ctv)(H2O)(CB11H6X6)](CF3CH2OH) feature chiral Na–CTV coordination chains with complexation of the [CB11H6X6]−ion by the Na+ion, together with the CTV molecular cavity. The coordination chains are hydrogen bonded together to give a puckered two‐dimensional hexagonal grid structure. [K(ctv)(CB11H6Cl6)(CF3CH2OH)0.5] is essentially isostructural. Complexes [Rb(ctv)(CB11H6Br6)(H2O)] and [Cs(ctv)(CB11H6X6)(CH3CN)] are coordination polymers with related distorted hexagonal grid structures. Use ofN,N′‐dimethylformamide (DMF) as a solvent results in an entirely different type of assembly, with [Na2(dmf)4(H2O)2(ctv)][(dmf)0.5(ctv)][CB11H6Br6]2showing unusual {Na‐μ‐(dmf)‐Na} bridges, and once again forming a distorted hexagonal coordination polymer.