Gen Inoue

Laser-induced single vibronic level fluorescence of the C2H3O radical is reported. The 0–0 band of the fluorescence lies at 28 798 cm−1 (347.2 nm). The C–O and C–C stretching, and the C–C–O bending vibrational energies are 1560, 1150, and 530 cm−1, respectively, in the ground electronic state, and 872, 1110 and 432 cm−1, respectively, in the excited state. The lifetime of the excited state is 0.8 μsec. The double bond nature of C2H3O is more dominant in the C–O bond than in the C–C bond in the g

Laser-excitation spectra and single vibronic level fluorescence spectra of CH3O and CD3O A 2A1–X 2E transitions are reported. The spectral origin of the excitation spectrum is at 31 540 cm−1 (317.06 nm); extensive progressions in the stretching mode ν3′ (678 cm−1 for CH3O and 655 cm−1 for CD3O) dominate the spectra. Fluorescence bands appear that are assigned as the transition to the C–O stretching mode and CH3 deformation modes, giving ν3″=1015 cm−1 for CH3O and 1010 cm−1 for CD3O. Measured vib

Laser induced fluorescence studies have been done with XeCl molecules, which demonstrate photoassociation (free–bound absorption) as well as conventional bound–bound absorption from the XeCl(X) van der Waals molecules. The XeCl(X) and Xe+Cl pairs were generated by a pulsed dc discharge through 1–6 Torr Xe/Cl2 mixtures. Experiments also were done with Xe/HCl mixtures. The time and wavelength resolved XeCl(B–X) and XeCl(C–A) excitation and fluorescence spectra are reported. Model calculations were

The radiative lifetimes and the collisional deactivation constants by Ne and Ar for all 6p, 6p′, 7p, and 6d states of Xe, except two, were studied by single or two-photon laser induced fluorescence in the afterglow of a pulsed discharge [the prime symbol denotes the Xe+(2P1/2) core rather than the Xe+(2P3/2) core]. The radiative lifetimes, 30–48 ns for 6p and 6p′ states and 68–172 ns for 7p states, agree well with theoretical values; but, the agreement between experiment and theory is less satis

Laser-excitation and laser-induced fluorescence spectra of the C2H5O radical are reported. The 0–0 band of the ?–? transition lies at 29 204 cm−1 (342.4 nm). The spectra are characterized by a prominent progression involving the C–O stretching mode, as in the case of the CH3O radical. The fundamental C–O stretching frequencies in the ground and excited states are 1067 and 596 cm−1, respectively.