SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF THE MONODENTATE 12-CROWN-4 AND HEXAETHYLENE GLYCOL COMPLEXES OF URANIUM(VI) - [UO2CL2(OH2)2(12-CROWN-4)].12-CROWN-4 AND UO2CL2(OH2)2(HEXAETHYLENE GLYCOL)

被引：11

作者：

ROGERS, RD

BENNING, MM

ETZENHOUSER, RD

ROLLINS, AN

机构：

[1] Department of Chemistry, Northern Illinois University, DeKalb

来源：

JOURNAL OF COORDINATION CHEMISTRY | 1992年 / 26卷 / 04期

基金：

美国国家科学基金会;

关键词：

URANYL CHLORIDE; 12-CROWN-4; HEXAETHYLENE GLYCOL; X-RAY CRYSTAL STRUCTURE;

D O I：

10.1080/00958979209407932

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of anhydrous UO2Cl2, with 12-crown-4 or hexaethylene glycol (EO6) in THF with low water content resulted in the crystallization of [UO2Cl2(OH2)2(12-crown-4)].12-crown-4 and UO2Cl2(OH2)2(EO6). The crystal structures of both complexes were determined. Each complex consists of a uranyl ion coordinated to two chloride anions, two water molecules, and one oxygen of the polyether. Most of the uncoordinated ether oxygen atoms participate in hydrogen bonding. The hydrogen bonding in the 12-crown-4 complex produces a dimer, while the hydrogen bonding in the EO6 complex is polymeric. The etheric U-O separation of 2.546(4) angstrom in the 12-crown-4 complex is the longest U-O contact in either complex, while the alcoholic U-O distance in the EO6 complex is a much shorter 2.433(5) angstrom.

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页码：299 / 311

页数：13

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