ISIS Neutron and Muon Source Data Journal

Impact of pressure on a highly polymorphic compound, isonicotinamide

Abstract: The solid state behaviour of isonicotinamide has been extensively characterised under ambient conditions. It possesses 6 polymorphs that have been access via changes to solvent, experimental conditions etc. This behaviour is, in part, due to the hydrogen bonding groups of the molecule, the amide and pyridine groups. These groups allow for different interaction of molecules leading to different behaviour. We have recently investigated one of these polymorphs (Form I) and shown that it possesses superelastic behaviour on application of pressure (~4 GPa) i.e. the shape of the crystal changes over the transition. Form I possesses different hydrogen bonding to the other forms hence in this proposal, we want to investigate the behaviour of three other polymorphs that share similar hydrogen bonding interactions (chain structure) but are different to Form I.

Principal Investigator: Dr Iain Oswald
Experimenter: Dr Martin Ward
Experimenter: Dr Nicholas Funnell
Local Contact: Dr Craig Bull
Experimenter: Dr Eleanor Jones

DOI: 10.5286/ISIS.E.RB2220496

ISIS Experiment Number: RB2220496

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Iain Oswald et al; (2023): Impact of pressure on a highly polymorphic compound, isonicotinamide, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2220496

Data is released under the CC-BY-4.0 license.