  The 12B excitation energy spectrum has been obtained from coincidence
measurements of the 9Be+7Li -> 2alpha+8Li reaction at E{0}=52 MeV.
  The decay of the states at excitations between 10 and 16 Mev into alpha$+8Li
has been observed for the first time. Observed alpha-decay indicates possible
cluster structure of the 12B excited states.
  The influence of these states on the cross section of the astrophysically
important 8Li(alpha,n)11B and 9Be+t reactions is discussed and the results are
compared with existing results.
