Gomes, Ligia Rebelo, Low, John Nicolson, Rodrigues, Ana S. M. C., Wardell, James L., de Souza, Marcus V. N., Noguiera, Thais C. M., Pinheiro, Alessandra C. (2013) Comparison of the structure of (E)-2-(2-benzylidenehydrazinylidene)quinoxaline with those of its chloro- and bromobenzylidene analogues. Acta Crystallographica Section C Crystal Structure Communications, 69 (8) 920-926 doi:10.1107/s0108270113015370
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Comparison of the structure of (E)-2-(2-benzylidenehydrazinylidene)quinoxaline with those of its chloro- and bromobenzylidene analogues | ||
| Journal | Acta Crystallographica Section C Crystal Structure Communications | ||
| Authors | Gomes, Ligia Rebelo | Author | |
| Low, John Nicolson | Author | ||
| Rodrigues, Ana S. M. C. | Author | ||
| Wardell, James L. | Author | ||
| de Souza, Marcus V. N. | Author | ||
| Noguiera, Thais C. M. | Author | ||
| Pinheiro, Alessandra C. | Author | ||
| Year | 2013 (August 15) | Volume | 69 |
| Issue | 8 | ||
| Publisher | International Union of Crystallography (IUCr) | ||
| DOI | doi:10.1107/s0108270113015370Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 191007 | Long-form Identifier | mindat:1:5:191007:4 |
| GUID | 0 | ||
| Full Reference | Gomes, Ligia Rebelo, Low, John Nicolson, Rodrigues, Ana S. M. C., Wardell, James L., de Souza, Marcus V. N., Noguiera, Thais C. M., Pinheiro, Alessandra C. (2013) Comparison of the structure of (E)-2-(2-benzylidenehydrazinylidene)quinoxaline with those of its chloro- and bromobenzylidene analogues. Acta Crystallographica Section C Crystal Structure Communications, 69 (8) 920-926 doi:10.1107/s0108270113015370 | ||
| Plain Text | Gomes, Ligia Rebelo, Low, John Nicolson, Rodrigues, Ana S. M. C., Wardell, James L., de Souza, Marcus V. N., Noguiera, Thais C. M., Pinheiro, Alessandra C. (2013) Comparison of the structure of (E)-2-(2-benzylidenehydrazinylidene)quinoxaline with those of its chloro- and bromobenzylidene analogues. Acta Crystallographica Section C Crystal Structure Communications, 69 (8) 920-926 doi:10.1107/s0108270113015370 | ||
| In | (2013, August) Acta Crystallographica Section C Crystal Structure Communications Vol. 69 (8) International Union of Crystallography (IUCr) | ||
| Abstract/Notes | (E)-2-(2-Benzylidenehydrazinylidene)quinoxaline, C15H12N4, crystallized with two molecules in the asymmetric unit. The structures of six halogen derivatives of this compound were also investigated: (E)-2-[2-(2-chlorobenzylidene)hydrazinylidene]quinoxaline, C15H11ClN4; (E)-2-[2-(3-chlorobenzylidene)hydrazinylidene]quinoxaline, C15H11ClN4; (E)-2-[2-(4-chlorobenzylidene)hydrazinylidene]quinoxaline, C15H11ClN4; (E)-2-[2-(2-bromobenzylidene)hydrazinylidene]quinoxaline, C15H11BrN4; (E)-2-[2-(3-bromobenzylidene)hydrazinylidene]quinoxaline, C15H11BrN4; (E)-2-[2-(4-bromobenzylidene)hydrazinylidene]quinoxaline, C15H11BrN4. The 3-Cl and 3-Br compounds are isomorphous, as are the 4-Cl and 4-Br compounds. In all of these compounds, it was found that the supramolecular structures are governed by similar predominant patterns,viz.strong intermolecular N—H...N(pyrazine) hydrogen bonds supplemented by weak C—H...N(pyrazine) hydrogen-bond interactions in the 2- and 3-halo compounds and by C—H...Cl/Br interactions in the 4-halo compounds. In all compounds, there are π–π stacking interactions. | ||
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