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J Mol Spectrosc. 2000 Jan;199(1):18-25. doi: 10.1006/jmsp.1999.7972.

Electronic Spectroscopy of Rhodium Mononitride.

Journal of molecular spectroscopy

Fougère, Balfour, Cao, Qian

Affiliations

  1. Department of Chemistry, University of Victoria, Victoria, British Columbia, V8W 3V6, Canada

PMID: 10712866 DOI: 10.1006/jmsp.1999.7972

Abstract

We report the first observation of gas-phase electronic spectra for rhodium mononitride. The RhN molecules have been produced in the reaction of laser-ablated rhodium metal with ammonia. Many vibronic bands have been studied in the 400-700 nm region using laser-induced fluorescence. Rotational analyses of the stronger of these, together with excited state lifetime measurements and Rh(14)N-Rh(15)N isotopic shifts, identify three electronic systems in the region: [15.1]1-X(1)Sigma(+), [19.5]0(+)-X(1)Sigma(+), and [22.4]0(+)-X(1)Sigma(+) with (0, 0) bands near 15 071, 19 489, and 22 385 cm(-1), respectively. The (1)Sigma(+) symmetry for the ground state agrees with theoretical predictions. Dispersed fluorescence spectra have been recorded which reveal the presence of electronic states at T = 553, 1740, and 3920 cm(-1). Copyright 2000 Academic Press.

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