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2-Amino-5-methylpyridinium picolinate 0.63-hydrate
The asymmetric unit of the title compound, C(6)H(9)N(2) (+)·C(6)H(4)NO(2) (−)·0.63H(2)O, contains two crystallographically independent 2-amino-5-methylpyridinium cations, a pair of picolinate anions and two water molecules, one with an occupancy of 0.25. Both the 2-amino-5-methylpyridine molecul...
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Formato: | Texto |
Lenguaje: | English |
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International Union of Crystallography
2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2979649/ https://www.ncbi.nlm.nih.gov/pubmed/21579497 http://dx.doi.org/10.1107/S1600536810018180 |
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author | Hemamalini, Madhukar Fun, Hoong-Kun |
author_facet | Hemamalini, Madhukar Fun, Hoong-Kun |
author_sort | Hemamalini, Madhukar |
collection | PubMed |
description | The asymmetric unit of the title compound, C(6)H(9)N(2) (+)·C(6)H(4)NO(2) (−)·0.63H(2)O, contains two crystallographically independent 2-amino-5-methylpyridinium cations, a pair of picolinate anions and two water molecules, one with an occupancy of 0.25. Both the 2-amino-5-methylpyridine molecules are protonated at the pyridine N atoms. In the crystal structure, the cations, anions and water molecules are linked via N—H⋯O, N—H⋯N and O—H⋯O hydrogen bonds, as well as by C—H⋯O contacts, forming a chain along the b axis. In addition, weak π–π interactions are observed between pyridinium rings, with centroid–centroid distances of 3.5306 (13) Å. |
format | Text |
id | pubmed-2979649 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-29796492010-12-30 2-Amino-5-methylpyridinium picolinate 0.63-hydrate Hemamalini, Madhukar Fun, Hoong-Kun Acta Crystallogr Sect E Struct Rep Online Organic Papers The asymmetric unit of the title compound, C(6)H(9)N(2) (+)·C(6)H(4)NO(2) (−)·0.63H(2)O, contains two crystallographically independent 2-amino-5-methylpyridinium cations, a pair of picolinate anions and two water molecules, one with an occupancy of 0.25. Both the 2-amino-5-methylpyridine molecules are protonated at the pyridine N atoms. In the crystal structure, the cations, anions and water molecules are linked via N—H⋯O, N—H⋯N and O—H⋯O hydrogen bonds, as well as by C—H⋯O contacts, forming a chain along the b axis. In addition, weak π–π interactions are observed between pyridinium rings, with centroid–centroid distances of 3.5306 (13) Å. International Union of Crystallography 2010-05-22 /pmc/articles/PMC2979649/ /pubmed/21579497 http://dx.doi.org/10.1107/S1600536810018180 Text en © Hemamalini and Fun 2010 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
spellingShingle | Organic Papers Hemamalini, Madhukar Fun, Hoong-Kun 2-Amino-5-methylpyridinium picolinate 0.63-hydrate |
title | 2-Amino-5-methylpyridinium picolinate 0.63-hydrate |
title_full | 2-Amino-5-methylpyridinium picolinate 0.63-hydrate |
title_fullStr | 2-Amino-5-methylpyridinium picolinate 0.63-hydrate |
title_full_unstemmed | 2-Amino-5-methylpyridinium picolinate 0.63-hydrate |
title_short | 2-Amino-5-methylpyridinium picolinate 0.63-hydrate |
title_sort | 2-amino-5-methylpyridinium picolinate 0.63-hydrate |
topic | Organic Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2979649/ https://www.ncbi.nlm.nih.gov/pubmed/21579497 http://dx.doi.org/10.1107/S1600536810018180 |
work_keys_str_mv | AT hemamalinimadhukar 2amino5methylpyridiniumpicolinate063hydrate AT funhoongkun 2amino5methylpyridiniumpicolinate063hydrate |