15min:

T C. STEIMLE, J. XIN, A. J. MARR AND S. A. BEATON, Dept. of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287-1604.

Supersonic molecular beams of scandium imide, ScNH, and deuterated imide, ScND, were produced using a laser ablation/reaction source and interrogated by laser induced fluorescence and dispersed fluorescence spectroscopy. The fine and magnetic hyperfine interactions and Stark effect in the (0,0) A²_r - X²⁺ transition of ScNH (origin = 15023.033 cm^-1) were analyzed. Ground state vibrational spacings for ScNH and ScND were measured. The determined permanent electric dipole moments are µ( A²_r) = 4.08(7)D and µ( X²⁺) = 2.28(15)D. The Sc (I=\frac72) magnetic hyperfine structure was analyzed from which a plausible molecular orbital description was made. A comparision with experimental observations^,and theoretical predictions for YNH has been made.