Vibrational progressions in the visible and near-ultraviolet absorption spectrum of ozone

In this Letter, we have recorded and analyzed new absorption spectra of ozo ne (215-2400 nm) at temperatures between 203 and 293 K. Two vibrational pro gressions have been identified in the visible part of the spectrum between 375 and 505 mn, leading to vibrational assignments, upper state's vibration al frequencies and anharmonic coupling constants, and to an estimation of t he vertical electronic energy of the B-1(1) state, in overall agreement wit h recent theoretical predictions and with measurements of isotopic shifts a t lower energies that were available in the literature. (C) 2001 Elsevier S cience B.V. All rights reserved.