Four substituted benzohydrazides: hydrogen-bonded structures in one, two and three dimensions

• Published in: Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2006-10, Vol.62 (10), p.o618-o624
• Main Authors: Wardell, Solange M. S. V., Vasconcelos, Thatyana R. A., Wardell, James L., Low, John N., Souza, Marcus V. N. de, Glidewell, Christopher
• Format: Article
• Language: English
• Subjects: Condensed matter: structure, mechanical and thermal properties; Crystal structure; Crystalline state (including molecular motions in solids); Exact sciences and technology; Hydrocarbons; Hydrogen bonds; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Theory of crystal structure, crystal symmetry; calculations and modeling
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S0108270106034974

The mol­ecules of 2,6‐dichloro­benzohydrazide, C7H6Cl2N2O, are linked into simple chains by a single N—H⋯O hydrogen bond, while in the isomeric compound 2,4‐dichloro­benzo­hydrazide, the mol­ecules are linked by N—H⋯N and N—H⋯O hydrogen bonds into complex sheets comprising an inner polar layer sandwiched between two non‐polar layers. In 4‐amino‐2‐chloro­benzohydrazide monohydrate, C7H8ClN3O·H2O, the components are linked into a three‐dimensional framework by a combination of O—H⋯O, O—H⋯N, N—H⋯N and N—H⋯O hydrogen bonds, and in 2‐nitro­benzohydrazide, C7H7N3O3, a three‐dimensional framework is formed by a combination of N—H⋯N and N—H⋯O hydrogen bonds