Spectroscopic constants and potential energy curves of 20 electronic s
tates of SnF arising from valence dissociation limits are computed usi
ng the complete active space MCSCF (CASSCF) followed by first- and sec
ond-order configuration interaction (FOCI, SOCI) methods, which includ
ed up to one million configurations. Our computed spectroscopic consta
nts of five electronic states fit well with the experimentally observe
d X, A, a, and C states. The dipole moments and other yet to be observ
ed properties of several electronic states are reported.