Characterization of polymeric metal complexes formed by reaction of excess diethyl acetyl- or diethyl benzoyl-phosphonate with metal chlorides at elevated temperatures

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI:10.1016/0022-1902(81)80612-4

Chester M. Mikulski, Nancy Harris, Patricia Sanford, Frank J. Iaconianni, Louis L. Pytlewski, Nicholas M. Karayannis

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引用次数: 5

Abstract

Reactions of some metal chlorides with diethyl acetyl- or diethyl benzoyl-phosphonate at elevated temperatures lead to products of varying types, i.e. Al(eap)₃, M(ebp)₃(M = Al, Cr), V(ehp)₃, M(ehp)₄(M = Th, U) (eap: ethyl acetylphosphonate; ebp: ethyl benzoylphosphonate; ehp: ethyl hydrogenphosphonate), as well as several mixed ligand complexes of the Ti(eap)₂(ehp), M(eap)(ehp)₂(M = Dy, Cr, Fe), M(ebp)₂(ehp) (M = Dy, Ti, V, Fe) and U(ebp)₃(ehp). Characterization studies suggest that the new metal complexes are linear chainlike polymers, involving triple- or quadruple-bridges of the anionic phosphonate ligands between adjacent metal ions. Among the ligands under study, ehp acts as bidentate bridging, coordinating through its two POO oxygens. In the cases of eap and ebp complexes, two different fashions of bridging were established. In most occasions, these ligands act as bidentate bridging, coordinating through the CO and one of the POO oxygens, but in a few cases, bridging through the two POO oxygens occurs instead.

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过量乙酰二乙基或苯甲酰膦酸二乙基与金属氯化物在高温下反应形成的聚合金属配合物的表征

某些金属氯化物与乙酰二乙基或苯甲酰膦酸二乙基在高温下反应可生成不同类型的产物，即Al(eap)3、M(ebp)3(M = Al, Cr)、V(ehp)3、M(ehp)4(M = Th, U) (eap:乙酰膦酸乙酯;苯甲酰膦酸乙酯;ehp:氢膦酸乙酯)，以及Ti(eap)2(ehp)， M(eap)(ehp)2(M = Dy, Cr, Fe)， M(ebp)2(ehp) (M = Dy, Ti, V, Fe)和U(ebp)3(ehp)的混合配体配合物。表征研究表明，新的金属配合物是线性链状聚合物，涉及相邻金属离子之间的阴离子磷酸盐配体的三重或四重桥。在所研究的配体中，ehp作为双齿桥接，通过其两个POO氧进行协调。在eap和ebp配合物的情况下，建立了两种不同的桥接方式。在大多数情况下，这些配体充当双齿桥接，通过CO和一个POO氧进行协调，但在少数情况下，通过两个POO氧进行桥接。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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