Tetrazanes, dissociation

Dissociation of 1,1,4,4-tetrapheny 1-2,3- dibenzoyl-tetrazane into radicals in chloroform, acetone, ether, and toluene.464 90s... 

Mention should also he made of radicles with bivalent nitrogen which are derived from hydrazines, the so-called hydrazyls. They are deeply coloured compounds which are obtained by dehydrogenation of tertiary hydrazines and form equilibrium mixtures with colourless tetrazanes, which dissociate into these free radicles (S. Goldschmidt),... 

Saturated Hydronitrogens (Type formula NnHn+2)- Ammonia NH3 Hydrazine (diamide) H2N.NH2 Triazane (prozane) H2 N.NH.NH2 Tetrazane(buzane, hydrotetrazane) H2N.NH.NH. NH2. Ammonia and Hydrazine are known in the free state the Triazanes are rather poorly defined as a class, whereas Tetrazanes exhibit a tendency towards instability by undergoing dissociation in solution to yield hydrazyl radicals... 

Quantitative data have been reported for the thermal dissociation of substituted tetrazanes (structurally related to hydrazo compounds) to hydrazyl free radicals, viz. 

A linear relation exists between entropies and enthalpies for the equilibria and it was concluded that differences in enthalpies reflect relative potential energies. The rates of first order dissociation of the substituted tetrazanes in acetone were determined, and the rates of recombination of the hydrazyl radicals could therefore be calculated from a knowledge of the equilibrium constants. 

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