X-ray crystal structures of five nitrogen-bridged bifurazan compounds

The molecular structures of five furazan compounds in which two amino- or n itro-substituted furazan rings are bridged by ate, azoxy or hydrate groups were determined by single crystal X-ray crystallography. These are diaminoa zofurazan, diaminoazoxyfurazan, diminoazoxyfurazan, diaminohydrazofurazan a nd dinitrohydrazofurazan. The structures are compared to those previously r eported on dinitroazofurazan, aminonitroazoxyfurazan and another polymorph of diaminoazoxyfurazan.