SYNTHESIS, CRYSTAL-STRUCTURE AND DYNAMIC BEHAVIOR IN SOLUTION OF MONOCYCLOOCTATETRAENE URANIUM ALKOXIDES

被引：32

作者：

ARLIGUIE, T ^{[1
]}

BAUDRY, D ^{[1
]}

EPHRITIKHINE, M ^{[1
]}

NIERLICH, M ^{[1
]}

LANCE, M ^{[1
]}

VIGNER, J ^{[1
]}

机构：

[1] CENS,CRISTALLOG LAB,SERV CHIM MOLEC,DRECAM,CNRS,URA 331,F-91191 GIF SUR YVETTE,FRANCE

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1992年 / 06期

关键词：

D O I：

10.1039/dt9920001019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Treatment of [U(cot)(BH4)2] (cot = eta-C8H8) with ROH (R = Et, Pr(i) or Bu(t)) led to successive formation of the alkoxide derivatives [U(cot)(BH4)(OR)]4 and [U(cot)(OR)2]5. Their structure and dynamic behaviour in solution have been studied by NMR spectroscopy; complexes 4 are monomeric in tetrahydrofuran whereas 5 are dimeric in this solvent and monomeric in pyridine. Rapid stereoselective exchange occurs between the terminal propoxide ligands of [{U(cot)(OPr(i))(mu-OPr(i))}2] and free Pr(i)OH. The crystal structures of [{U(cot)(BH4)(mu-OEt)}2] and [{U(cot)(OPr(i)(mu-OPr(i))}2] have been determined.

引用

页码：1019 / 1024

页数：6

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