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Triple bonds between iron and heavier group-14 elements in the AFe(CO)3 complexes (A = Ge, Sn, and Pb)

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Abstract

Heteronuclear transition-metal-main-group element carbonyl anion complexes of AFe(CO)3 (A = Ge, Sn, and Pb) are prepared using a laser vaporization supersonic ion source in the gas phase, which were studied by mass-selected infrared (IR) photodissociation spectroscopy. The geometric and electronic structures of the experimentally observed species are identified by a comparison of the measured and calculated IR spectra. These anion complexes have a 2A1 doublet electronic ground state and feature an A[triple bond, length as m-dash]Fe triply bonded C3v structure with all of the carbonyl ligands bonded at the iron center. Bonding analyses of AFe(CO)3 (A = C, Si, Ge, Sn, Pb, and Fl) indicate that the complexes are triply bonded between the valence np atomic orbitals of bare group-14 atoms and the hybridized 3d and 4p atomic orbitals of iron.

Graphical abstract: Triple bonds between iron and heavier group-14 elements in the AFe(CO)3− complexes (A = Ge, Sn, and Pb)

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Publication details

The article was received on 18 Mar 2019, accepted on 15 Apr 2019 and first published on 15 Apr 2019


Article type: Communication
DOI: 10.1039/C8CC09340G
Citation: Chem. Commun., 2019, Advance Article

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    Triple bonds between iron and heavier group-14 elements in the AFe(CO)3 complexes (A = Ge, Sn, and Pb)

    J. Wang, C. Chi, J. Lu, L. Meng, M. Luo, H. Hu, M. Zhou and J. Li, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C8CC09340G

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