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Tuberculose em Pacientes HIV-Positivos: Um grave problema de saúde pública mundial

Authors: De Souza, M.V.N. Source: Revista Brasileira de Farmácia, v. 87, p. 42-44, 2006 Publisher: Associação Brasileira de Farmacêuticos Abstract Atualmente, a tuberculose (TB) tornou-se um sério problema de saúde pública mundial, e de acordo com a WHO (Organização Mundial de Saúde), que declarou em 1993 TB como um problema de proporções globais, a cada […]

Pyrazine-2-carbohydrazide: a three-dimensional hydrogen-bonded framework structure.

Authors: De Souza, M.V.N.; Low, J.N.; Wardell, S.M.S.V.; Wardell, J.L.; Glidewell, C. Source: Acta Crystallographica. Section E, v. E62, p. 3765-3767, 2006 Publisher: International Union of Crystallography Abstract Mol­ecules of the title compound, C5H6N4O, are linked into a three-dimensional framework structure by a combination of N-HO, N-HN and C-HO hydrogen bonds. Keywords: None Document Type: […]

Nine N-aryl-2-chloronicotinamides: supramolecular structures in one, two and three dimensions

Authors: De Souza, M.V.N.; Cuffini, S.; Wardell, S.M.S.V.; Wardell, J.L.; Vasconcelos, T.A.; Oliveira, A.G.; Glidewell, C. Source: Acta Crystallographica. Section B, Structural Science, v. B62, p. 651-665, 2006. Publisher: International Union of Crystallography Abstract Structures are reported here for eight further substituted N-aryl-2-chloronicotinamides, 2-ClC5H3NCONHC6H4X-4′. When X = H, compound (I) (C12H9ClN2O), the molecules are linked […]

Furanonas: uma importante classe de compostos farmacologicamente ativos, presentes em diversas espécies de produtos naturais

Authors: De Souza, M.V.N. Source: Revista Brasileira de Farmácia, v. 87, p. 30-33, 2006. Publisher: Associação Brasileira de Farmacêuticos Abstract Furan-2(5H)-ona é uma importante classe química comumente conhecida como furanona, que apresenta inúmeras aplicações. Por exemplo, esta subunidade está presente em um grande número de produtos naturais com diferentes tipos de atividades biológicas, está incorporada em […]

Acetone 3-nitro­phenyl­hydrazone, redetermined at 120 K: sheets built from N-H…O, C-H…O and C-H…N hydrogen bonds

Authors: De Souza, M.V.N.; Low, J.N.; Wardell, S.M.S.V.; Wardell, J.L.; Glidewell, C. Source: Acta Crystallographica. Section E, v. E62, p. 2838-2840, 2006. Publisher: International Union of Crystallography Abstract Mol­ecules of the title compound, C9H11N3O2, are linked into sheets by a combination of N-HO, C-HO and C-HN hydrogen bonds. Keywords: None Document Type: Research Article DOI: […]

Acetone (2,6-dichlorobenzoyl)hydrazone: chains of p-stacked hydrogen-bonded dimers.

Authors: De Souza, M.V.N.; Low, J.N.; Wardell, S.M.S.V.; Wardell, J.L.; Glidewell, C. Source: Acta Crystallographica. Section E, v. E62, p. 2841-2843, 2006. Publisher: International Union of Crystallography Abstract In the title compound, C10H10Cl2N2O, the aryl ring is almost orthogonal to the rest of the mol­ecule. Mol­ecules are linked into centrosymmetric dimers by N-HO hydrogen bonds, […]

5-Chloro-2-nitro­benzaldehyde isonicotinoylhydrazone: a three-dimensional framework built from N-H…N and C-H…O hydrogen bonds

Authors: De Souza, M.V.N.; Low, J.N.; Wardell, S.M.S.V.; Wardell, J.L.; Glidewell, C. Source: Acta Crystallographica. Section E, v. E62, p. 3361-3363, 2006. Publisher: International Union of Crystallography Abstract In the title compound, C13H9ClN4O3, the mol­ecules are linked into a three-dimensional framework by one N-HN hydrogen bond and three C-HO hydrogen bonds. Keywords: None Document Type: […]

2,4-Dimethylbenzaldehyde isonico-tinoylhydrazone trihydrate: a three-dimensional hydrogen-bonded frame-work structure

Authors: De Souza, M.V.N.; Low, J.N.; Wardell, S.M.S.V.; Wardell, J.L.; Glidewell, C. Source: Acta Crystallographica. Section C, Crystal Structure Communications, v. C62, p. 444-446, 2006. Publisher: International Union of Crystallography Abstract In the title compound, C15H15N3O·3H2O, two of the three water mol­ecules exhibit disorder. The mol­ecular components are linked into a three-dimensional framework by a […]

A three-dimensional framework of pi-stacked hydrogen-bond chains in benzyl 4-chloro-3-nitrobenzoate, and chains of hydrogen-bonded rings in benzyl 4-nitrobenzoate, redetermined at 120K

Authors: De Souza, M.V.N.; Vasconcelos, T.R.A.; Wardell, S.M.S.V.; Wardell, J.L.; Low, J.N.; Glidewell, C. Source: Acta Crystallographica. Section C, Crystal Structure Communications, v. C62, p. 295-298, 2006. Publisher: International Union of Crystallography Abstract Benzyl 4-chloro-3-nitro­benzoate, C14H10ClNO4, crystallizes with Z‘ = 2 in the space group P. The mol­ecules are linked by three independent C-HO hydrogen […]

Hydrogen-bonded framework structures in 4-[(4-chloro-3-nitrobenzoyl)-hydrazinocarbonyl]pyridiniumchloride and N-3,5-dinitrobenzoyl-N´-isonicotinoylhydrazine

Authors: De Souza, M.V.N.; Vasconcelos, T.R.A.; Wardell, S.M.S.V.; Wardell, J.L.; Low, J.N.; Glidewell, C. Source: Acta Crystallographica. Section C, Crystal Structure Communications, v. C62, p. 222-226, 2006. Publisher: International Union of Crystallography Abstract In 4-[(4-chloro-3-nitro­benzo­yl)­hydrazino­carbon­yl]­pyridinium chloride, C13H10ClN4O4+·Cl–, the component ions are linked into a three-dimensional framework structure by a combination of three N-HCl and five […]

2,4-Difluorobenzaldehyde benzolyhydrazone and 2,4-dichlorobenzaldehyde benzoylhydrazone are isostructural at 120 K with Z = 2: complex sheets built from N-H…O, C-H…O and C-H…Pi(areno) hydrogen bonds

Authors: De Souza, M.V.N.; Wardell, S.M.S.V.; Wardell, J.L.; Low, J.N.; Glidewell, C.; Ferreira, M.L. Source: Acta Crystallographica. Section C, Crystal Structure Communications, v. C62, p. o118-o121, 2006. Publisher: International Union of Crystallography Abstract At 120 K, 2,4-difluoro­benzaldehyde benzoyl­hydrazone, C14H10­F2N2O, (I), and 2,4-dichloro­benzaldehyde benzoyl­hydrazone, C14H10Cl2N2O, (II), are isomorphous and isostructural in P21/n with Z‘ = 2. In […]