One-photon and two-photon electronic spectra of two caged amines.
スポンサーリンク
概要
- 論文の詳細を見る
The one-photon fluorescence excitation and two-photon resonant multiphoton ionization spectra of the S<SUB>1</SUB>←S<SUB>0</SUB> transition of 1,4-diazabicyclo[2.2.2]octane (DABCO) in a supersonic free jet have been obtained and analyzed. It was found from the vibrational analysis that the S<SUB>1</SUB>←S<SUB>0</SUB> transition is one-photon forbidden, two-photon allowed and the one-photon absorption appears by the vibronic interaction between the S<SUB>1</SUB> and S<SUB>2</SUB> states through the e′ vibrations. In addition, from the fluorescence spectrum and the polarization studies of the two-photon spectrum using the two linearly polarized laser beams of different wavelengths, it was concluded that the S<SUB>1</SUB> state is <SUP>1</SUP>A<SUB>1</SUB><SUP>′</SUP>. The sequence structure involving the low-frequency cage torsional vibration has been observed in the two-photon resonant multiphoton ionization spectra of DABCO and 1-azabicyclo[2.2.2]octane (ABCO). The potential functions with respect to the torsional motion for both ground and excited states have been determined by utilizing the observed vibrational levels. It was found that the torsional potential has a broad minimum near the D<SUB>3h</SUB> (for DABCO) and C<SUB>3V</SUB> (for ABCO) conformations.
- 公益社団法人 日本化学会の論文
著者
-
Ito Mitsuo
Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute
-
Mikami Naohiko
Department Of Chemistry Faculty Of Science Tohoku University
-
Gonohe Narishi
Department of Chemistry, Faculty of Science, Tohoku University
-
Yatsuda Norio
Department of Chemistry, Faculty of Science, Tohoku University
-
Mikami Naohiko
Department of Chemistry and Radiation Laboratory, University of Notre Dame
関連論文
- Purification of Uranium Metal and High-Quality Single Crystal Growth
- Analysis of a Uranium Solution for Evaluating the Total Number of Fissions in the JCO Criticality Accident in Tokai-mura
- Trapping and Low-Energy Extraction of Photodissociated Ions of SF_6
- Observation of the Highly Excited Vibrational Levels of HCP: Application of IR-UV-SEP Triple Resonance Spectroscopy
- Microscopic Solvation Effects on Si-Si Bond Cleavage Reactions of Cluster Cation Radicals of (p-Cyanophenyl)pentamethyldisilane with Hydroxylic Molecules
- Spectroscopic Study of Intracluster Proton Transfer in Small Size Hydrogen-Bonding Clusters of Phenol
- Observation of Intramolecular Hydrogen Bonds of o-Fluorophenol Ions by Using Autoionization Detected Infrared Spectroscopy
- Effect of Solvent on Carbonyl Stretching Frequency of Ketones
- Purification of Uranium Metal using the Solid State Electrotransport Method under Ultrahigh Vacuum
- The Resonance Raman Effect of Azobenzene and p-Aminoazobenzene
- Discrimination of Rotational Isomers of Jet-Cooled Acetophenone Derivatives as Studied by Sensitized Phosphorescence Excitation Spectroscopy.
- One-photon and two-photon electronic spectra of two caged amines.
- The two-photon excitation spectrum of phenanthrene crystal.
- Dual fluorescence of pyrazine cooled in a supersonic free jet.
- The Selective Hydrogenation of the Knoevenagel Condensates of Acetylacetone with Aldehydes Catalyzed by Raney Nickel as a Route to 3-Substituted 2,4-Pentanediones
- The Polarized Phosphorescence Spectra of Phenazine in a Phenanthrene Crystal
- Rise Times of Triplet-Triplet Absorptions of Some Aromatic Hydrocarbons