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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Network diversity and supramolecular isomerism in copper(II)/1,2-bis(4- pyridyl)ethane coordination polymers
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Network diversity and supramolecular isomerism in copper(II)/1,2-bis(4- pyridyl)ethane coordination polymers

机译:铜(II)/ 1,2-双(4-吡啶基)乙烷配位聚合物中的网络多样性和超分子异构

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摘要

Reactions of copper(II) sources with 1,2-bis(4-pyridyl)ethane (bpe) yielded metal-organic networks with diverse topologies and dimensionalities. Compounds [Cu(bpe)_2(dmf)_2]_n(ClO_4) _(2n)·2ndmf (1·2ndmf), [Cu(bpe) _2(dmf)_2]_n(ClO_4)_(2n)·3.5ndmf (2·3.5ndmf), [Cu(bpe)_2(NO _3)_2]_n·2nH2O (4·2nH_2O) and [Cu_2(bpe)(O_2CMe) _4]_n·0.7nH_2O (5·0.7nH _2O) have been isolated by altering the copper(II) source, the reaction solvent and the crystallization process. Compounds 1·2ndmf and 2·3.5ndmf consist of cationic [Cu(bpe)_2(dmf)_2] ~(2+) repeating units assembled to 1D and 2D (4,4) networks, respectively, and represent supramolecular isomers due to the conformational isomerism of the bridging bpe molecules. Compound 4·2nH_2O consists of neutral mononuclear [Cu(dpe)_2(NO_3) _2] repeating units assembled to inclined interpenetrating (4,4) sheets describing an overall entanglement that is 3D in nature, and compound 5·0.7nH_2O consists of neutral dinuclear repeating units assembled to cross-linked 1D chains.
机译:铜(II)源与1,2-双(4-吡啶基)乙烷(bpe)的反应产生了具有多种拓扑结构和尺寸的金属有机网络。化合物[Cu(bpe)_2(dmf)_2] _n(ClO_4)_(2n)·2ndmf(1·2ndmf),[Cu(bpe)_2(dmf)_2] _n(ClO_4)_(2n)·3.5ndmf (2·3.5ndmf),[Cu(bpe)_2(NO _3)_2] _n·2nH2O(4·2nH_2O)和[Cu_2(bpe)(O_2CMe)_4] _n·0.7nH_2O(5·0.7nH _2O)具有通过改变铜(II)的来源,反应溶剂和结晶过程可以分离出铜。化合物1·2ndmf和2·3.5ndmf由分别组装成1D和2D(4,4)网络的阳离子[Cu(bpe)_2(dmf)_2]〜(2+)重复单元组成,它们代表超分子异构体桥接bpe分子的构象异构现象。化合物4·2nH_2O由中性单核[Cu(dpe)_2(NO_3)_2]重复单元组成,这些单元组装成互穿的(4,4)倾斜薄片,描述了3D的整体缠结,化合物5·0.7nH_2O由中性组成双核重复单元组装成交联的一维链。

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