The ultraviolet absorption spectra of GeO in rare gas matrices

The absorption spectra of GeO isolated in rare gas matrices have been investigated in the wavelength region 1150–3000 Å using the 2.5-GeV synchrotron in Bonn as a continuum light source. Two vibrational progressions of bands have been found in each of the matrices, in neon, argon, krypton, and xenon. These progressions are situated in the regions 2400–2700 and 1800–2100 Å. They have been analyzed as corresponding to gas-phase bands of the A¹Π-X¹Σ⁺ and the E¹Σ⁺-X¹Σ⁺ systems, respectively. Absorption lines of matrix-isolated GeO were also found in the region 1180–1500 Å.