The infrared L.M.R. spectrum of SnH

Abstract

We report the first spectroscopic observation of the tin hydride radical in the infrared spectral region. Vibration rotation transitions of the ten stable isotopic forms of SnH in the ²п_3/2 component of its ground state were recorded with a CO-LMR-spectrometer. The isotopic structure, the ∧-doubling in the ²п_3/2 substate and the hyperfine splitting due to the tin isotopes ¹¹⁵Sn, ¹¹⁷Sn and ¹¹⁹Sn have been resolved for the first time. A set of effective molecular parameters of the X ²п_3/2 state is given.