Ga. Dushenko et al., SYNTHESIS AND REARRANGEMENTS OF ,4,5-PENTAPHENYLCYCLOPENTADIENYL)-ISOSELENOCYANATE, Mendeleev communications, (5), 1995, pp. 182-184
Unlike ,3,4,5-pentaphenylcyclopentadienyl)isothiocyanate, its selenium
analogue ,3,4,5-pentaphenylcydopentadienyl)isoselenocyanate exists in
solution in an equilibrium with the isomeric selenocyanate, both isom
ers being found to undergo circumambulatory rearrangements.