Exceptional uranium(VI)-nitride triple bond covalency from ¹⁵N nuclear magnetic resonance spectroscopy and quantum chemical analysis.

ABSTRACT: Determining the nature and extent of covalency of early actinide chemical bonding is a fundamentally important challenge. Recently, X-ray absorption, electron paramagnetic, and nuclear magnetic resonance spectroscopic studies have probed actinide-ligand covalency, largely confirming the paradigm of early actinide bonding varying from ionic to polarised-covalent, with this range sitting on the continuum between ionic lanthanide and more covalent d transition metal analogues. Here, we report measurement of the covalency of a terminal uranium(VI)-nitride by ¹⁵N nuclear magnetic resonance spectroscopy, and find an exceptional nitride chemical shift and chemical shift anisotropy. This redefines the ¹⁵N nuclear magnetic resonance spectroscopy parameter space, and experiment

SUBMITTER: Du J 

PROVIDER: S-EPMC8463702 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature