Fougère SG, Balfour WJ, Cao J, Qian CX
Department of Chemistry, University of Victoria, Victoria, British Columbia, V8W 3V6, Canada
J Mol Spectrosc. 2000 Jan;199(1):18-25. doi: 10.1006/jmsp.1999.7972.
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.
我们报告了对一氮化铑气相电子光谱的首次观测。RhN分子是通过激光烧蚀铑金属与氨的反应产生的。利用激光诱导荧光在400 - 700 nm区域研究了许多振转带。对其中较强的谱带进行转动分析，并结合激发态寿命测量和Rh(14)N - Rh(15)N同位素位移，确定该区域有三个电子体系：[15.1]1 - X(1)Σ⁺、[19.5]0(+) - X(1)Σ⁺和[22.4]0(+) - X(1)Σ⁺，其(0, 0)带分别位于15071、19489和22385 cm⁻¹附近。基态的(1)Σ⁺对称性与理论预测相符。记录了色散荧光光谱，其显示在T = 553、1740和3920 cm⁻¹处存在电子态。版权所有2000，学术出版社。
