Single-photon absorption of liquid methanol and ethanol in the vacuum ultraviolet

On the photoionisation of liquid cyclohexane, 2,2,4 trimethylpentane and tetramethylsilane

“…This, together with the increase of the charge carrier yields QðEÞ with absorption, gives evidence to the fact that electron-hole pairs generated below the conduction band originate from the relaxation of autoionising states. Invoking similarities with our previous studies on alcohols [10,23] we have suggested that relaxation of these states may occur via a transient intermolecular charge transfer process [9]. Our interpretation is now further confirmed by the absence of magnetic modulation below E G in the three studied liquids.…”

“…In all solutions, the onset of electron-hole pair production coincides with the absorption threshold of the pure solvent, E 0 , at (7.0 AE 0.1) eV in the alkanes, and (6.3 AE 0.1) eV in tetramethylsilane [9,22]. This shows that the produced electron-hole pairs relate to the excitation of the solvent, and that direct excitation of the solute is negligible by reason of a strong screening by this solvent [9,23,24].…”

Highly sensitive setup for tunable wavelength hyper-Rayleigh scattering with parallel detection and calibration data for various solvents

“…In fact only for DMF (see Fig. 5(a)) and methanol [71] there was no need for such an approach, and the intense lowest absorption transition was selected for the TLM. While the selection of a single λ eg for each solvent may seem somewhat arbitrary at first, the excellent consistency obtained with the extensive HRS data set for nine different solvents demonstrates the reliability of the calibration data (see Fig.…”

Far-Ultraviolet Spectroscopy in the Solid and Liquid States: A Review

“…40 Morisawa et al 31 called these three transitions, the A-X, B-X, and C-X transitions, respectively. As to liquid phases, Jung and Gress 44,44 and Kuo et al 46 carried out interesting studies. The former group measured a transmission spectrum of liquid CH 3 OH by use of a very thin cell with a path length of 1.0 6 0.5 lm.…”