In order to search for a proposed alpha : 2n : alpha : 2n : alpha molecular structure in C-16 its break-up into Be-10 + He-6, Be-12 + alpha, He-8 + 2 alpha and He-6 + He-6 + alpha has been studied using a 560 MeV C-16 beam inelastically excited on a C-12 target. States in C-16 appear to be only weakly populated in this reaction.
Leask, PJ ; Ninane, Alain ; et. al. Search for molecular states in C-16. In: Journal of Physics G: Nuclear and Particle Physics, Vol. 27, no. 8, p. B9-B14 (2001)