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Updated: May 8, 2026

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry
Published on: June 8, 2022
Infrared spectra and electronic structure calculations for the NUN(NN)1-5 and NU(NN)1-6 complexes in solid argon
Lester Andrews1, Xuefeng Wang, Yu Gong
1Department of Chemistry, University of Virginia, P.O. Box 400319, Charlottesville, Virginia 22904-4319, United States. lsa@virginia.edu
Abstract:
Reactions of laser-ablated U atoms with N2 molecules in excess argon during co-deposition at 4 K gave intense NUN and weaker UN absorptions. Annealing increased progressions of new absorptions for the NUN(NN)1,2,3,4,5 and NU(NN)1,2,3,4,5,6 uranium nitride complexes. Small matrix shifts are observed when the secondary coordination layers around the primary NUN(NN)1,2,3,4,5 and NU(NN)1,2,3,4,5,6 complexes are changed from argon to nitrogen. Electronic structure and energy and frequency calculations provide support for the identification of these complexes and further characterization of the N≡U≡N and U≡N core molecules as terminal uranium nitrides with full triple bonds.
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