LASER-INDUCED FLUORESCENCE SPECTROSCOPY OF ZIRCONIUM MONOCARBIDE
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Date
1998
Journal Title
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Volume Title
Publisher
Ohio State University
Abstract
Laser-ablated Zr metal is found to react with methane under supersonic jet-cooled conditions. New electronic bands in the $540-655 nm$ region have been detected by laser-induced fluorescence. Among these are bands which do not change when $CD_{4}$ is sustituted for $CH_{4}$ and whose lower state B value is $0.526_{***} cm^{-1}$; wavelength-resolved fluorescence indicates a lower state vibrational frequency of approximately $880 cm^{-1}$, suggesting that the carrier is ZrC. Analysis of the high resolution spectra is complicated by irregularities in the Zr isotope structure, indicating severe rotational perturbations. The derived bond length of $r^{\prime \prime} = 1.73_{9}$ {\AA} is consistent with those found in other 4d transition metal monocarbides.
Description
Author Institution: Chemistry Department, University of British Columbia; Department of Physics and Astronomy, University of British Columbia