Quadruple bonding between iron and boron in the BFe(CO)₃^- complex.

ABSTRACT: While main group elements have four valence orbitals accessible for bonding, quadruple bonding to main group elements is extremely rare. Here we report that main group element boron is able to form quadruple bonding interactions with iron in the BFe(CO)₃^- anion complex, which has been revealed by quantum chemical investigation and identified by mass-selected infrared photodissociation spectroscopy in the gas phase. The complex is characterized to have a B-Fe(CO)₃^- structure of C_3v symmetry and features a B-Fe bond distance that is much shorter than that expected for a triple bond. Various chemical bonding analyses indicate that the complex involves unprecedented B≣Fe quadruple bonding interactions. Besides the common one electron-shari

SUBMITTER: Chi C 

PROVIDER: S-EPMC6797760 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature