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Data for 5-amino-2-methylpyridinium hydrogen fumarate : an XRD and NMR crystallography analysis
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Brown, Steven P., Walton, Richard I., Walker, David, Sidebottom, Philip J., Hughes, Leslie P., Blade, Helen and Corlett, Emily K. (2020) Data for 5-amino-2-methylpyridinium hydrogen fumarate : an XRD and NMR crystallography analysis. [Dataset]
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Abstract
Single-crystal X-ray diffraction structures of the 5-amino-2-methylpyridinium hydrogen fumarate salt have been solved at 150 and 300 K (CCDC 1952142 and 1952143). A base-acid-base-acid ring is formed through pyridinium-carboxylate and amine-carboxylate hydrogen bonds that hold together chains formed from hydrogen-bonded hydrogen fumarate ions. 1H and 13C chemical shifts as well as 14N shifts that additionally depend on the quadrupolar interaction are determined by experimental magic-angle spinning (MAS) solid-state nuclear magnetic resonance (NMR) and gauge-including projector augmented wave (GIPAW) calculation. Two-dimensional homonuclear 1H-1H double-quantum (DQ) MAS and heteronuclear 1H-13C and 14N-1H spectra are presented. Only small differences of up to 0.1 ppm and 0.6 ppm for 1H and 13C are observed between GIPAW calculations starting with the two structures solved at 150 and 300 K (after geometry optimisation of atomic positions, but not unit cell parameters). A comparison of GIPAW calculated 1H chemical shifts for isolated molecules and the full crystal structures is indicative of hydrogen bonding strength.
| Item Type: | Dataset | |||||||||
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| Subjects: | Q Science > QD Chemistry Q Science > QH Natural history Q Science > QP Physiology T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science > Chemistry Faculty of Science > Physics |
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| Type of Data: | Experimental data | |||||||||
| Library of Congress Subject Headings (LCSH): | X-ray diffraction imaging, Nuclear magnetic resonance spectroscopy, Crystallography | |||||||||
| Publisher: | Department of Physics, Department of Chemistry | |||||||||
| Official Date: | 23 March 2020 | |||||||||
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| Date of first compliant deposit: | 27 April 2020 | |||||||||
| Status: | Not Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Media of Output: | .xlsx .cif .magres | |||||||||
| Access rights to Published version: | Open Access | |||||||||
| Copyright Holders: | University of Warwick | |||||||||
| Description: | Data record consists of a zip archive divided into sub-folders named and organised according to the nature of the calculation or experiments. Sub-folders consist of: |
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