title: Hydrogen-bonding patterns in two structural isomers of 3,6-bis(2-chlorophenyl)-1,4-dihydro-1,2,4,5-tetrazine.
abstract: Two structural isomers, 3,6-bis(2-chlorophenyl)-1,4-dihydro-1,2,4,5-tetrazine, (I), and 3,5-bis(2-chlorophenyl)-4-amino-1H-1,2,4-triazole, (II), both C(14)H(10)Cl(2)N(4), form chain-like structures in the solid state, stabilized by N-H...N and N-H...Cl hydrogen bonds. A contribution from weak interactions to the strong hydrogen-bond network is observed in both structures. The secondary graph sets for intermolecular hydrogen bonds [R(2)(2)(11) for (I) and R(2)(2)(12) for (II)] indicate the similarity between the networks.
authors.affiliation: Warsaw University of Technology, Department of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland. janzac@ch.pw.edu.pl
authors.forename: Janusz
authors.initials: J
authors.lastname: Zachara
authors.forename: Izabela
authors.initials: I
authors.lastname: Madura
authors.forename: Marek
authors.initials: M
authors.lastname: Włostowski