ja5b12620_si_004.cif (129.38 kB)
Synthesis and Structure of Nitride-Bridged Uranium(III) Complexes
dataset
posted on 2016-02-05, 00:00 authored by Lucile Chatelain, Rosario Scopelliti, Marinella MazzantiThe
reduction of the nitride-bridged diuranium(IV) complex Cs[{U(OSi(OtBu)3)3}2(μ-N)] affords
the first example of a uranium nitride complex containing uranium
in the +III oxidation state. Two nitride-bridged complexes containing
the heterometallic fragments Cs2[UIII‐‐‐N‐‐‐UIV] and Cs3[UIII‐‐‐N‐‐‐UIII] have been crystallographically
characterized.
The presence of two or three Cs+ cations binding the nitride
group is key for the isolation of these complexes. In spite of the
fact that the nitride group is multiply bound to two uranium and two
or three Cs+ cations, these complexes transfer the nitride
group to CS2 to afford SCN– and uranium(IV)
disulfide.