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Multiple Bonding Between Group 3 Metals and Fe(CO) 3 −
Author(s) -
Wang JiaQi,
Chi Chaoxian,
Hu HanShi,
Li Xiang,
Luo Mingbiao,
Li Jun,
Zhou Mingfei
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201914536
Subject(s) - covalent bond , heteronuclear molecule , metal carbonyl , chemistry , crystallography , metal , photodissociation , singlet state , infrared spectroscopy , main group element , carbon group , group (periodic table) , inorganic chemistry , photochemistry , transition metal , nuclear magnetic resonance spectroscopy , stereochemistry , organic chemistry , atomic physics , physics , excited state , catalysis
Heteronuclear Group 3 metal/iron carbonyl anion complexes ScFe(CO) 3 − , YFe(CO) 3 − , and LaFe(CO) 3 − are prepared in the gas phase and studied by mass‐selective infrared (IR) photodissociation spectroscopy as well as quantum‐chemical calculations. All three anion complexes are characterized to have a metal–metal‐bonded C 3 v equilibrium geometry with all three carbonyl ligands bonded to the iron center and a closed‐shell singlet electronic ground state. Bonding analyses reveal that there are multiple bonding interactions between the bare group‐3 elements and the Fe(CO) 3 − fragment. Besides one covalent electron‐sharing metal–metal σ bond and two dative π bonds from Fe to the Group 3 metal, there is additional multicenter covalent bonding with the Group 3 atom bonded to Fe and the carbon atoms.