Nc. Shand et al., LASER PHOTOIONIZATION (REMPI) SPECTROSCOPY OF THE 3S[-N RYDBERG TRANSITION OF JET-COOLED ACETALDEHYDE (CH3CHO), Chemical physics letters, 247(1-2), 1995, pp. 32-37
The (2 + 1) resonance-enhanced multiphoton ionisation (REMPI) spectrum
of jet-cooled acetaldehyde has been recorded over the wavelength rang
e 352 to 365 nm, and the vibrational assignments of the two-photon exc
itation spectrum have been extended to most of the prominent and many
of the weaker vibronic features. The 3s <-- n Rydberg nature of the tr
ansition and the preference for the eclipsed conformation of the excit
ed state have been confirmed by the vibrational analysis of the observ
ed spectra and by torsional level calculations.