title: Electronic properties of CrF and CrCl in the X 6Sigma+ state: observation of the halogen hyperfine structure by Fourier transform microwave spectroscopy.
abstract: The rotational spectra of the CrF and CrCl radicals in the X 6Sigma+ state were observed by employing a Fourier transform microwave spectrometer. The CrF and CrCl radicals were generated by the reaction of laser-ablated Cr with F2 and Cl2, respectively, diluted in Ar. A chromium rod made of chromium powder pasted with epoxy resin was ablated by a Nd:YAG laser. Rotational transitions were measured in the region between 8 and 26 GHz. Several hyperfine constants due to the halogen nuclei were determined by a least-squares analysis. The electronic properties of CrF and CrCl were derived from their hyperfine constants and were compared with those of other 3d transition metal monohalides: TiF, MnF, FeF, CoF, NiF, and FeCl.
authors.affiliation: Department of Chemistry, Faculty of Science, Shizuoka University, 836 Oya, Shizuoka 422-8529, Japan.
authors.forename: Kaoru
authors.initials: K
authors.lastname: Katoh
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Okabayashi
authors.forename: Mitsutoshi
authors.initials: M
authors.lastname: Tanimoto
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Sumiyoshi
authors.forename: Yasuki
authors.initials: Y
authors.lastname: Endo