The intensity of the 105–000 transition of HCN
- 15 April 1989
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 90 (8) , 4633-4634
- https://doi.org/10.1063/1.456606
Abstract
We have remeasured the intensity of the anomalously strong 105–000 band in HCN using long-path length absorption and a cw dye laser. Our initial measurement of this intensity using calibrated intracavity photoacoustic spectroscopy was challenged by a low-resolution photoacoustic spectrum which gave a ratio of intensity of the 105–000 to the 006–000 band that was close to the ratio of 1.5 predicted by theory. Our present result of 16.7 cm/mol, is 20% larger than our earlier result, yielding an intensity ratio of the 105–000 to the 006–000 of 7, which increases the disagreement with theory.Keywords
This publication has 7 references indexed in Scilit:
- Fourier transform spectra of overtone bands of HCN from 5400 to 15100 cm−1Journal of Molecular Spectroscopy, 1989
- Quantum analysis of high vibrational overtones of hydrogen cyanide using optimal modesThe Journal of Chemical Physics, 1989
- Anharmonic potential-energy surfaces, vibrational frequencies and infrared intensities calculated from highly correlated wavefunctionsJournal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 1988
- Local-mode overtones. Ultrashort pulse excitation, intramolecular relaxation and unimolecular reactionsJournal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 1988
- The intensities of HCN overtone transitions from 12 600–18 400 cm−1The Journal of Chemical Physics, 1987
- The intensity and self-broadening of overtone transitions in HCNThe Journal of Chemical Physics, 1986
- Infrared intensities of polyatomic molecules calculated from SCEP dipole-moment functions and anharmonic vibrational wavefunctions. I. Stretching vibrations of the linear molecules HCN, HCP and C2N2Chemical Physics, 1983