TY - JOUR
T1 - Velocity modulation infrared laser spectroscopy of negative ions
T2 - The ν3, ν3+ν1-ν1, ν3+ν2-ν2, and ν3+2ν 2-2ν2 bands of cyanate (NCO-)
AU - Gruebele, Martin
AU - Polak, Mark
AU - Saykally, Richard J.
PY - 1986
Y1 - 1986
N2 - We have measured 132 transitions in the v3 (CN stretching) fundamental and the corresponding bending and stretching hotbands of the cyanate anion, ranging from P(52) to R(66), with a tunable diode laser using the velocity modulation technique. The spectra were fit to the standard linear triatomic molecule rotation-vibration Hamiltonian, yielding effective molecular parameters for the (0000), (0110), (0200), (1000), (0001), (0111), (0201), and (1001) states. The equilibrium rotational constant was determined to be Be=0.385 933(116) cm-1. A comparison with condensed phase results is presented. As previously oberved for N3-, cyanate is detected with high vibrational excitation in the bending mode, most likely as a consequence of the formation mechanism.
AB - We have measured 132 transitions in the v3 (CN stretching) fundamental and the corresponding bending and stretching hotbands of the cyanate anion, ranging from P(52) to R(66), with a tunable diode laser using the velocity modulation technique. The spectra were fit to the standard linear triatomic molecule rotation-vibration Hamiltonian, yielding effective molecular parameters for the (0000), (0110), (0200), (1000), (0001), (0111), (0201), and (1001) states. The equilibrium rotational constant was determined to be Be=0.385 933(116) cm-1. A comparison with condensed phase results is presented. As previously oberved for N3-, cyanate is detected with high vibrational excitation in the bending mode, most likely as a consequence of the formation mechanism.
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U2 - 10.1063/1.452409
DO - 10.1063/1.452409
M3 - Article
AN - SCOPUS:36549103281
SN - 0021-9606
VL - 86
SP - 6631
EP - 6636
JO - The Journal of Chemical Physics
JF - The Journal of Chemical Physics
IS - 12
ER -