1 Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" University of Rome, P.le Aldo Moro 5, 00185 Roma, Italy. anna.troiani@uniroma1.it giulia.depetris@uniroma1.it.
The new radical FBNCO and the new cation FBNCO(+), containing all the 2p-block elements, have been detected in the gaseous isolated state. Theoretical calculations predict that these species are very stable toward dissociation.