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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Controllable assembly, characterization and catalytic properties of a new Strandberg-type organophosphotungstate
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Controllable assembly, characterization and catalytic properties of a new Strandberg-type organophosphotungstate

机译：新型Strandberg型有机磷钨酸盐的可控组装，表征和催化性能

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摘要

Using phenylphosphonic acid, simple tungstate and copper(II) compounds as starting materials, an organic-inorganic hybrid Strandberg-type organophosphotungstate, {[(Cu(H2O)(mu-bipy))(2)(C6H5PO3)(2)W5O15]}(n) (bipy = 4,4'-bipyridyl) (1), was assembled successfully under hydrothermal conditions and characterized by physico-chemical and spectroscopic methods. Compound 1 represents the first example of a transition metal complex modified organophosphotungstate cluster. In the crystal structure of compound 1, the polymeric 1-D {Cu-bipy}(n) chains are interconnected by [(C6H5PO3)(2)W5O15](4-) (abbreviated as {(C6H5P)(2)W-5}) units into a 3-D framework. A hollow Keggin isopolytungstate [H2W12O40](6-) ({W-12})-Cu(II) coordination polymer, {[Cu(bipy)(2)((mu-bipy)Cu(bipy))(2)(H2W12O40)]center dot 12H(2)O}(n) (2), was obtained at different molar ratios of the starting materials and pH. The two Cu(II) coordination polymers exhibit good acid-catalytic activity for the synthesis of cyclohexanone ethylene ketal. Their fluorescence properties were studied.
机译：以苯基膦酸，简单的钨酸盐和铜（II）化合物为起始原料，有机-无机杂化Strandberg型有机磷钨酸盐，{[（Cu（H2O）（mu-bipy））（2）（C6H5PO3）（2）W5O15] }（n）（联吡啶= 4,4'-联吡啶）（1）在水热条件下成功组装，并通过理化和光谱方法表征。化合物1代表过渡金属配合物改性的有机磷钨酸盐簇的第一个实例。在化合物1的晶体结构中，聚合的1-D {Cu-bipy}（n）链通过[（C6H5PO3）（2）W5O15]（4-）（缩写为{（C6H5P）（2）W- 5}）合并成3-D框架。中空的Keggin异聚钨酸盐[H2W12O40]（6-）（{W-12}）-Cu（II）配位聚合物，{[Cu（bipy）（2）（（mu-bipy）Cu（bipy））（2）（ [H2W12O40）]中心点12H（2）O}（n）（2）是在原料的不同摩尔比和pH值下获得的。这两种Cu（II）配位聚合物对环己酮乙烯缩酮的合成具有良好的酸催化活性。研究了它们的荧光性质。

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