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This work focuses on two Ru-bearing molecules: RuF and RuCl. Both molecules were created in a molecular beam apparatus at UNB. Their spectra were detected by laser-induced fluorescence. In the low-resolution survey of RuF from 400 to 770 nm , five bands were detected in the blue, green and infrared regions of the electromagnetic spectrum. Four of them were rotationally analyzed from high-resolution data. Three bands in the green region are associated with the $^4\Gamma-X ^4\Phi_{4.5}$ system first observed by Steimle et al. (J. Chem. Phys. 124, 024309 (2006)). A new $^4\Delta_{3.5}-X ^4\Phi_{4.5}$ transition in the blue region was also detected. The related molecule, RuCl was also created and spectroscopically detected for the first time. Two high-resolution bands of RuCl were rotationally analyzed, and the ground state was also found to be $ X^4\Phi_{4.5}$. The data provide detailed structural information about the molecules, such as bond lengths, vibrational frequencies, isotopic structure, spin-orbit interactions and hyperfine interactions.
