Abstract
The infrared emission spectra of NaCl and KCl have been recorded at high resolution with a Fourier transform spectrometer. A total of 929 lines belonging to 8 vibrational bands, 1–0 to 8–7, for Na35Cl, 252 lines of 1–0, 2–1, and 3–2 bands of Na37Cl, and 355 lines of 1–0, 2–1, 3–2, and 4–3 bands of K35Cl have been measured and combined with the existing microwave and millimeter-wave data to obtain a set of refined molecular constants. The data for Na35Cl and Na37Cl have also been fitted to determine the DunhamYijconstants and mass-reduced Dunham constantsUij. In one fit allUij's were treated as adjustable parameters while in a second fit onlyUi0's andUi1's were allowed to vary freely with the remainingUijconstants determined by the constraints imposed by the Dunham model. In addition, the internuclear potential energy parameters were determined by fitting the entire NaCl data set to the eigenvalues of the Schrödinger equation containing a parameterized potential energy function.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
