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Two isomorphous azastilbene derivatives: 1-(2-chlorobenzyl)-4-[(E)-2-(4-hydroxyphenyl)ethenyl]pyridinium chloride and 1-(2-bromobenzyl)-4-[(E)-2-(4-hydroxyphenyl)ethenyl]pyridinium bromide.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Manszewski, Tomasz Prukała, Dorota Prukała, Wiesław Kubicki, Maciej |
| Copyright Year | 2010 |
| Abstract | The crystal structures of the two title (E)-stilbazolium halogenates, C(20)H(17)ClNO(+)·Cl(-) and C(20)H(17)BrNO(+)·Br(-), are isomorphous, with an isostructurality index of 0.985. The azastyryl fragments are almost planar, with dihedral angles between the benzene and pyridine rings of ca 4.5°. The rings of the benzyl groups are, in turn, almost perpendicular to the azastyryl planes, with dihedral angles larger than 80°. The cations and anions are connected by O-H.X(-) (X = halogen) hydrogen bonds. The halide anions are `sandwiched' between the charged pyridinium rings of neighbouring molecules, and weak C-H.O hydrogen bonds and C-H.X and C-H.π interactions also contribute to the crystal structures. |
| Starting Page | 2318 |
| Ending Page | 2328 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1107/S0108270110034827 |
| PubMed reference number | 20921613 |
| Journal | Medline |
| Volume Number | 66 |
| Part | 10 |
| Alternate Webpage(s) | http://journals.iucr.org/c/issues/2010/10/00/fg3177/fg3177.pdf |
| Alternate Webpage(s) | https://doi.org/10.1107/S0108270110034827 |
| Journal | Acta crystallographica. Section C, Crystal structure communications |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
