Investigation of the electronic vibrational structure of furan by REMPI.
Resonance-enhanced multiphoton ionization (REMPI) has been applied to detect the hot bands as well as the cold bands of the 1a2-->-->3dxy(1A1) Rydberg transition of furan (jet-cooled, mass-analyzed). Based on the unambiguous assignment of the hot bands, a complete vibronic analysis is given for the cold bands of this transition (up to 4600 cm(-1) above the origin). This analysis can be used for the interpretation of the vibrational structure in the X 2A2 photoelectron band. The energy ordering of the five 3d Rydberg states is 1A2 approximately 2A2<A1<B1<B2. It is also shown that neutral CH is produced in the UV laser multiphoton photodecomposition of furan.
Philis
J G
JG
Department of Physics, University of Ioannina, Dourouti, GR451110 Ioannina, Greece. iphilis@uoi.gr
D002623:Chemistry Techniques, Analytical / Q000379:methods*; D004583:Electrons; D005663:Furans / Q000737:chemistry*; D013058:Mass Spectrometry; D014732:Vibration
D005663:Furans; C039281:furan