Synthesis, structure and photophysical properties of [UO2X2(O=PPh3)2] (X = Cl, Br, I)

被引：15
|
作者：
Hashem, Emtithal [1 ]
McCabe, Thomas [1 ]
Schulzke, Carola [2 ]
Baker, Robert J. [1 ]
机构：
[1] Univ Dublin, Trinity Coll, Sch Chem, Dublin 2, Ireland
[2] Ernst Moritz Arndt Univ Greifswald, Inst Biochem, D-17487 Greifswald, Germany
来源：
DALTON TRANSACTIONS | 2014年 / 43卷 / 03期
关键词：
RING-OPENING POLYMERIZATION; IONIC LIQUIDS; CRYSTAL-STRUCTURES; URANYL COMPLEXES; URANIUM; ACTIVATION; COORDINATION; REACTIVITY; CHEMISTRY; LIGANDS;
D O I：
10.1039/c3dt52480a
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The synthesis of a series of uranyl compounds via oxidation of [Li(THF)(4)][UX5(THF)] (X = Cl, Br, I) in the presence of Ph3P=O is described. The solid state structures of [Li(O=PPh3)(MeCN)(2)](2)[UO2Cl4], [UO2Br2(O=PPh3)(2)] and [Li(O=PPh3)(4)][I-3], formed as a by-product from the oxidation of [Li(THF)(4)]-[UI5(THF)], is reported. The electronic absorption spectra and photoluminescence spectra of [UO2X2(O=PPh3)(2)] (X = Cl, Br, I) have been measured and no significant changes in the position of the emission (515-530 nm) or the lifetimes (ca. 1 mu s) are observed in this series. However a bathochromic shift is observed in the U-X LMCT band in the electronic absorption spectrum.
引用
收藏
页码：1125 / 1131
页数：7
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