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Crystal structure of bis(3-carboxy-1-methylpyridinium) octabromide
The crystal structure of the title salt, bis(3-carboxy-1-methylpyridinium) octabromide, 2C(7)H(8)NO(2) (+)·Br(8) (2−), consists of 3-carboxy-1-methylpyridinium (N-methylnicotinic acid) cations, which are stacked between relatively rare [Br(8)](2–) anions. The polybromide [Br(8)](2–) anion has...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10626950/ https://www.ncbi.nlm.nih.gov/pubmed/37936849 http://dx.doi.org/10.1107/S2056989023008460 |
Sumario: | The crystal structure of the title salt, bis(3-carboxy-1-methylpyridinium) octabromide, 2C(7)H(8)NO(2) (+)·Br(8) (2−), consists of 3-carboxy-1-methylpyridinium (N-methylnicotinic acid) cations, which are stacked between relatively rare [Br(8)](2–) anions. The polybromide [Br(8)](2–) anion has point group symmetry [Image: see text] and can be described as being composed of two [Br(3)](−) anions connected with a Br(2) molecule in a Z-shaped manner. Contacts between neighboring octabromide anions ensure the creation of pseudo-polymeric chains propagating along [111]. The organic cations are located between anionic chains and are connected to each other through O—H⋯O hydrogen bonds and to the [Br(8)](2–) anions through π⋯Br interactions that induce the creation of a supramolecular tri-periodic network. In addition, the presence of weak C—H⋯Br contacts leads to the creation of layers, which align parallel to (11 [Image: see text] ). |
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