Unusual Ion UO4- Formed Upon Collision Induced Dissociation of [UO2(NO3)3]-, [UO2(ClO4)3]-, [UO2(CH3COO)3]- Ions

被引：17
|
作者：
Sokalska, Marzena [1 ]
Prussakowska, Malgorzata [1 ]
Hoffmann, Marcin [1 ]
Gierczyk, Blazej [1 ]
Franski, Rafal [1 ]
机构：
[1] Adam Mickiewicz Univ, Fac Chem, PL-60780 Poznan, Poland
来源：
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY | 2010年 / 21卷 / 10期
关键词：
GAS-PHASE; MASS-SPECTROMETRY; CRYSTAL-CHEMISTRY; URANYL COMPLEXES; AB-INITIO; URANIUM; NITRATE; SPECIATION; PEROXIDES; MOLECULES;
D O I：
10.1016/j.jasms.2010.06.018
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The following ions [UO2(NO3)(3)](-), [UO2(ClO4)(3)](-), [UO2(CH3COO)(3)](-) were generated from respective salts (UO2(NO3)(2), UO2(ClO4)(3), UO2(CH3COO)(2)) by laser desorption/ionization (LDI). Collision induced dissociation of the ions has led, among others, to the formation of UO4- ion (m/z 302). The undertaken quantum mechanical calculations showed this ion is most likely to possess square planar geometry as suggested by MP2 results or strongly deformed geometry in between tetrahedral and square planar as indicated by DFT results. Interestingly, geometrical parameters and analysis of electron density suggest it is an U-VI compound, in which oxygen atoms bear unpaired electron and negative charge. (J Am Soc Mass Spectrom 2010, 21, 1789-1794) (C) 2010 American Society for Mass Spectrometry
引用
收藏
页码：1789 / 1794
页数：6
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