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Preparation and Characterization of Uranium-Iron Triple-Bonded UFe(CO)3 − and OUFe(CO)3 − Complexes

Authors :
Wan-Lu Li
Mingfei Zhou
Chaoxian Chi
Jia-Qi Wang
Mingbiao Luo
Luyan Meng
Jun Li
Hui Qu
Source :
Angewandte Chemie. 129:7036-7040
Publication Year :
2017
Publisher :
Wiley, 2017.

Abstract

We report the preparation of UFe(CO)3− and OUFe(CO)3− complexes using a laser-vaporization supersonic ion source in the gas phase. These compounds were mass-selected and characterized by infrared photodissociation spectroscopy and state-of-the-art quantum chemical studies. There are unprecedented triple bonds between U 6d/5f and Fe 3d orbitals, featuring one covalent σ bond and two Fe-to-U dative π bonds in both complexes. The uranium and iron elements are found to exist in unique formal U(I or III) and Fe(−II) oxidation states, respectively. These findings suggest that there may exist a whole family of stable df–d multiple-bonded f-element-transition-metal compounds that have not been fully recognized to date.

Details

ISSN :
00448249
Volume :
129
Database :
OpenAIRE
Journal :
Angewandte Chemie
Accession number :
edsair.doi.dedup.....417a20804fe7ff195ae955be75692a38