			10min:

REANALYSIS OF THE NEAR INFRARED ELECTRONIC TRANSITIONS OF NiCl.

LEAH C. O'BRIEN, TAYLOR DAHMS, Department of Chemistry, Southern Illinois University, Edwardsville, IL 62026-1652; JAMES J. O'BRIEN, Department of Chemistry, University of Missouri, St Louis, MO 63121-4499.

Three near infrared electronic transitions of NiCl have been reanalyzed. Hougen's recent (2011) theoretical investigation of low-lying states of metal halides with a d⁹ electronic configuration indicated that the signs of the experimental spin-rotation and lambda-doubling signs for the low-lying Omega =1/2 states of NiCl were not correct. This problem is corrected by assuming an excited state with ² Sigma ^- symmetry instead of ² Sigma ⁺ symmetry. Line positions for the [12.3]² Sigma ^- - X² _3/2, [12.3]² Sigma ^- - X² _1/2, and [12.3]² Sigma ^- - B² Sigma ⁺ electronic transitions have been refitted, and the new spin-rotation and lambda-doubling signs agree with the Hougen theory. The results of the analysis will be presented.