Derivatives of cyclotetrazenoborane. Part IV. Mass spectra of substituted cyclotetrazenoboranes

Abstract

The mass spectra of a series of 2,5-disubstituted cyclotetrazenoboranes have been studied. The compounds Me₂N₄BH, Et₂N₄BH Me(Ph)N₄BH, and Ph₂N₄BH all give strong molecular ion peaks, and major fragmentations due to loss of N₂ or N₂+ H· confirm that the substituents are in the 2 and 5 positions. Other major fragmentations include cleavage of ethyl or phenyl substituents, and loss of HCN from a number of the daughter ions.