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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 2
BKCSDE 23(2)
February 20, 2002

Title	Resonantly-enhanced Two-photon Ionization and Mass-Analyzed Threshold Ionization (MATI) Spectroscopy of 2-Hydroxypyridine
Author	Daehyun Lee, Sun Jong Baek, Kyo-Won Choi, Young S. Choi, Sang Kyu Kim
Keywords	2-Hydroxypyridine, Mass-analyzed, Threshold, Ionization, Spectroscopy.
Abstract	Mass-analyzed threshold ionization (MATI) spectra of 2-hydroxypyridines existing as lactims (2-pyridinol) in a molecular beam are obtained via (1+1`) two-photon process to give accurate ionization energies of 8.9344 ±0.0005 and 8.9284 ± 0.0005 eV for 2-pyridinol (2Py-OH) and its deuterated analogue (2Py-OD), respectively. Resonantly-enhanced two-photon ionization spectra of these compounds are also presented to give vibrational structures of their S₁ states. Vibrational frequencies of 2Py-OH and 2Py-OD in ionic ground states are accurately determined from MATI spectra taken via various S₁ intermediate states, and associated vibrational modes are assigned with the aid of ab initio calculations.
Page	277 - 280
Full Text	PDF

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