title: Supramolecular hydrogen-bonded hexamers in two 5-aryl-3-methyl-1-phenyl-1,6,7,8-tetrahydropyrazolo[3,4-b][1,4]diazepines.
abstract: In both title compounds, i.e. 3-methyl-1,5-diphenyl-1,6,7,8-tetrahydropyrazolo[3,4-b][1,4]diazepine, C(19)H(18)N(4), (I), and 5-(4-chlorophenyl)-3-methyl-1-phenyl-1,6,7,8-tetrahydropyrazolo[3,4-b][1,4]diazepine, C(19)H(17)ClN(4), (II), an N-H...N hydrogen bond links six molecules to form an R(6)(6)(30) ring. Compound (I) crystallizes in the R3 space group and (II) crystallizes in P1 with three molecules in the asymmetric unit. The molecule of (I) contains a disordered seven-membered ring.
authors.affiliation: Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen AB24 3UE, Scotland. jnlow111@hotmail.com
authors.forename: John Nicolson
authors.initials: JN
authors.lastname: Low
authors.forename: Justo
authors.initials: J
authors.lastname: Cobo
authors.forename: Braulio
authors.initials: B
authors.lastname: Insuasty
authors.forename: Henry
authors.initials: H
authors.lastname: Insuasty
authors.forename: Manuel
authors.initials: M
authors.lastname: Nogueras
authors.forename: Adolfo
authors.initials: A
authors.lastname: Sánchez
mesh_terms: D014151:Anti-Anxiety Agents / Q000737:chemistry*; D001381:Azepines / Q000737:chemistry*; D001569:Benzodiazepines; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D011720:Pyrazoles / Q000737:chemistry*
chemical_list: C454611:3-methyl-1,5-diphenyl-1,6,7,8-tetrahydropyrazolo(3,4-b)(1,4)diazepine; C454612:5-(4-chlorophenyl)-3-methyl-1-phenyl-1,6,7,8-tetrahydropyrazolo(3,4-b)(1,4)diazepine; D014151:Anti-Anxiety Agents; D001381:Azepines; D011720:Pyrazoles; D001569:Benzodiazepines