Knowledge Bank

The high resolution infrared emission spectrum of sodium monofluoride has been recoreded with a Fourier transform spectrometer. A total of 1131 of vibration-rotation from the v = 1 $\to$ 0 to v =9 $\to$ 8 vibrational bands, have been assigned. The infrared data have been combined with existing microwave data in order to obtain improved spectroscopic constants, including Dunham $Yij$ and $Uij$ coefficients, for the $X1\Sigma +$ electronic ground state of NaF. The electronic spectrum of titanium monofluoride molecule was recorded using the same technique, and a preliminary abalysis has been attempted.