Issue 40, 2019

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

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)

Supplementary files

Article information

Article type
Communication
Submitted
18 Mar 2019
Accepted
15 Apr 2019
First published
15 Apr 2019

Chem. Commun., 2019,55, 5685-5688

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, 55, 5685 DOI: 10.1039/C8CC09340G

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