OH/D A2sigma(+)-X2pi(i) rovibronic transitions in multibubble sonoluminescence.
Multibubble sonoluminescence spectra were recorded in the 300-350 nm wavelength range in the case of H(2)O/Ar, D(2)O/Ar and H(2)O/Kr solutions (acoustic frequency: 20 kHz; spectral resolution optimized to 0.34 nm). Three groups of rotational components (R(1)/R(2), Q(1)/Q(2) and P(1)/P(2)) were identified in the OH/D A2sigma(+)-X2pi(i) (0,0) transitions via the substitution of H(2)O for D(2)O. The congestion of bands and the origin of a red shading extending up to 350 nm are broached.
Laboratoire de Sonochimie, Institut Meurice, 1, Avenue Emile Gryzon, 1070 Bruxelles, Belgium. tlepoint@meurice.heldb.be
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