1-(P-CARBAMOYLPHENYL)-3,3-DIMETHYL-TRIAZENE, AN ANTITUMOR AGENT

In the crystal structure of the title compound, 4-(3,3-dimethyl-1-tria zeno)benzamide, C9H12N4O, (2), the N=N double bond [1.282(8) Angstrom] is 0.030 Angstrom shorter than the N-N single bond [1.312(8) Angstrom ], but both bonds are Shorter than an isolated N-N single bend suggest ing that there is double-bond character in each N-N bond, although it is unequally distributed. The molecule adopts a trans geometry around the N=N bond, but there is a significant deviation from planarity betw een the benzene ring and the plane of the triazene moiety. Compound (2 ) forms chains in the solid state in which the molecules are linked by C=O ... H-N hydrogen bonds between carbamoyl groups. These chains are cross-linked into sheets by hydrogen bonding between the second N-H m oiety and triazene units in adjacent chains.