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Infrared Spectra of NH2NO, NH2NO+, and of the N2...H2O and N2u...H2O+ Complexes Trapped in Solid Neon



Marilyn E. Jacox, Warren E. Thompson


When a Ne:H2:N2O mixture is codeposited at 4.3 K with a beam of neon atoms that have been excited in a microwave discharge, NH2NO+ is stabilized in sufficient concentration for detection of five of its vibrational fundamentals. Their assignments are supported by isotopic substitution studies and by the results of unrestricted B3LYP/cc-pVTZ calculations. Electron recombination results in the stabilization of NH2NO, for which the previously reported argon-matrix assignments are confirmed and extended. The OH-stretching fundamental of NNOH+ also is present in the spectrum of the initial sample deposit, but because of proton sharing with the neon matrix is shifted 43.3 cm1 from the gas-phase band center. The OD-stretching fundamental of NNOD+ is identified for the first time in the present study. An absorption at 2311.1 cm1 is contributed by the NN-stretching vibration of the complex of N2 with H2O+. On prolonged visible and near ultraviolet irradiation of the deposit, absorptions of the binary N2AAAH2O complex become increasingly prominent.
Journal of Chemical Physics


complex of N2 with H2O, complex of N2 with H2O+, infrared spectrum, neon matrix, NH2NO+, NNOH+


Jacox, M. and Thompson, W. (2005), Infrared Spectra of NH<sub>2</sub>NO, NH<sub>2</sub>NO<sup>+</sup>, and of the N<sub>2</sub><sup>...</sup>H<sub>2</sub>O and N<sub>2</sub>u...H<sub>2</sub>O<sup>+</sup> Complexes Trapped in Solid Neon, Journal of Chemical Physics (Accessed April 14, 2024)
Created August 1, 2005, Updated February 17, 2017