TY - JOUR
T1 - Observation of vibronically excited thioformaldehyde at 62,000–72,000 cm−1 by 1 + 1 + 1 resonance enhanced multiphoton ionization spectroscopy
AU - Wu, Hsing Chen
AU - Chen, Chun Cing
AU - Chen, Yit-Tsong
PY - 2008
Y1 - 2008
N2 - Vibronically excited thioformaldehyde (H2CS) has been studied by two-color 1 + 1 + 1 resonance enhanced multiphoton ionization (REMPI) spectroscopy, in which the C˜ 1B2 000 state of H2CS was selected as an intermediate state for the resonant excitation to high-lying electronic states at 62,000–72,000 cm−1. In light of the distinctive selection rules for the 1 + 1 + 1 REMPI and one-photon direct absorption transitions excited from the C˜ 1B2 and X˜ 1A1 states of H2CS, respectively, we have been able to identify 1 valence state (n, *2), and 14 Rydberg states (n, 5s), (, 4s), (n,3dxz), (n, 3dyz), (n, 5pz), (n, 5px), (n, 5py), (n, 4dz2), (n, 4dxz), (n, 4dyz), (n, 6s), (, 4py), (n, 6pz), and (n, 6py), in this study.
AB - Vibronically excited thioformaldehyde (H2CS) has been studied by two-color 1 + 1 + 1 resonance enhanced multiphoton ionization (REMPI) spectroscopy, in which the C˜ 1B2 000 state of H2CS was selected as an intermediate state for the resonant excitation to high-lying electronic states at 62,000–72,000 cm−1. In light of the distinctive selection rules for the 1 + 1 + 1 REMPI and one-photon direct absorption transitions excited from the C˜ 1B2 and X˜ 1A1 states of H2CS, respectively, we have been able to identify 1 valence state (n, *2), and 14 Rydberg states (n, 5s), (, 4s), (n,3dxz), (n, 3dyz), (n, 5pz), (n, 5px), (n, 5py), (n, 4dz2), (n, 4dxz), (n, 4dyz), (n, 6s), (, 4py), (n, 6pz), and (n, 6py), in this study.
KW - Multiphoton ionization
KW - Rydberg states
KW - Thioformaldehyde
M3 - Article
SN - 1386-1425
VL - 69
SP - 27
EP - 32
JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
ER -