Abstract
149 transitions in the v1 band (CN stretch) and the corresponding bending and stretching hot bands of thiocyanate (NCS-) have been measured using velocity modulation spectroscopy with a tunable diode laser. The data were fit to an effective rotation-vibration Hamiltonian, yielding spectroscopic parameters for the (000), (100), (010), (110), (001), and (101) vibrational states. The band origin is v1=2065.9312(13) cm-1 and the equilibrium rotational constant is calculated to be 0.197 438(61 ) cm-1. NCS- was prepared in a NH 3/CS2 discharge, and unlike the recently studied case of NCO-, vibrational excitation in excess of the rotational temperature (650±200 K) was not observed.
Original language | English (US) |
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Pages (from-to) | 3352-3356 |
Number of pages | 5 |
Journal | The Journal of Chemical Physics |
Volume | 87 |
Issue number | 6 |
DOIs | |
State | Published - 1987 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry