Clustering features of ¹⁴N nuclei in relativistic multifragmentation process

Progress in the study of the peripheral nuclear interactions in $^{14}N$ dissociation at $2.1A GeV$ in nuclear emulsion is outlined. The leading role of the multiple fragmentations in the most peripheral nucleus interactions is discussed. The production of unusual states, for which a regrouping of nucleons beyond the $\alpha$-particle clustering is needed, is identified for this channel.