THE A(1)DELTA(A2)-]X(3)SIGMA(-)(X(2)1) TRANSITIONS OF SBH AND SBD

Emission spectra of the 0-0 and 1-1 bands of the a(1) Delta(a2) --> X( 3) Sigma(-)(X(2)1) transitions of SbH and SbD have been observed in th e near-infrared spectral region near 1.62 mu m. The antimony hydride r adicals were generated and excited in a fast-flow system by reaction o f antimony vapor with hydrogen or deuterium atoms. The NIR chemilumine scence was measured with a Fourier-transform spectrometer equipped wit h a Ge detector. The spectra were measured at a spectral resolution of 0.1 cm(-1) which was not sufficient to resolve the hyperfine nor the isotope structure of the lines. Analyses of the bands have yielded spe ctroscopic constants of the a2 states of SbH and SbD. (C) 1996 Academi c Press, Inc.