1180008-47-2Relevant articles and documents
Two derivatives of 1,5-disubstituted tetra-zoles: 1-(4-nitro-phen-yl)-1H- tetra-zol-5-amine and {(E)-[1-(4-ethoxy-phen-yl)-1H-tetra-zol-5-yl]imino-methyl} dimethyl-amine
Lyakhov, Alexander S.,Vorobiov, Andrey N.,Ivashkevich, Ludmila S.,Gaponik, Pavel N.
, p. o414-o416 (2008)
The geometric features of 1-(4-nitro-phenyl)-1H-tetra-zol-5-amine, C7H6N6O2, correspond to the presence of the essential inter-action of the 5-amino group lone pair with the π system of the tetra-zole ring. Inter-molecular N - H...N and N - H...O hydrogen bonds result in the formation of infinite chains running along the [110] direction and involve centrosymmetric ring structures with motifs R 2 2(8) and R 2 2(20). Mol-ecules of {(E)-[1-(4-ethoxy-phenyl)-1H-tetra-zol-5-yl] imino-methyl}dimethyl-amine, C12H16N6O, are essentially flattened, which facilitates the formation of a conjugated system spanning the whole mol-ecule. Conjugation in the azomethine N=C - N fragment results in practically the same length for the formal double and single bonds.
