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Matrix Isolation ESR and Theoretical Study of ZnN
journal contribution
posted on 2019-04-01, 00:00 authored by Thomas
S. Hearne, Sally A. Yates, Duncan A. Wild, Allan J. McKinleyThe Zn14N, 67Zn14N, Zn15N, and 67Zn15N radicals have been formed by
the reaction of a plume of zinc metal produced with laser ablation
and either ammonia vapor or nitrogen atoms isolated in an inert neon
matrix at 4.3 K. The ground electronic state of ZnN was determined
to be 4∑– using electron spin
resonance spectroscopy. The following magnetic parameters were determined
experimentally for ZnN: g⊥ = 1.9998(3), g∥ = 2.0018(3), |D| =
7268(8) MHz, A⊥(14N)
= −17.9(20) MHz, A∥(14N) = 1.5(20) MHz, A⊥(15N) = 25.1(20) MHz, A∥(15N)= −2.0(20) MHz, A⊥(67Zn) = 156(3) MHz, and A∥(67Zn) = 168(12) MHz. The low-lying electronic states
of ZnN were also investigated using the complete active space self-consistent
field technique. By plotting the potential energy surface, theoretical
parameters for the ground state with a configuration of 8σ29σ210σ14π2 were determined, including re = 2.079
Å and De = 1.0 kcal/mol.