INFRARED-SPECTRUM OF OCIO IN THE 2000 CM(-1)REGION - THE 2-NU-1 AND NU-1+NU-3 BANDS

The FTIR spectra of the 2ν1 and ν1 + ν3 bands of ClO2 (OClO) have been recorded in the 2000 cm-1 region. with an instrumental resolution of ∼0.004 cm-1. The spectra have been analyzed using a Hamiltonian which includes spin-rotation terms to provide the first high-resolution analysis of these bands. Around 1900 transitions of 35ClO2 (plus ∼600 of 37ClO2) have been assigned in 2ν1, and 1100 transitions of 35ClO2 (plus ∼450 of 37ClO2) have been identified in ν1 + ν3. By making use of all available data, accurate band centers, rotational constants, spin rotational constants. and a number of the xrs anharmonicity constants as well as α and γ parameters have been obtained. © 1993 Academic Press, Inc.