ArticleCrystal growth & design2026
New Insights into the Structure and Thermodynamic Stability of Polymorphs I and II of the Nicotinamide:Adipic Acid Co-Crystal: A BEST-CSP Study.
Article in Crystal growth & design, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
The polymorphism of the 1:1 nicotinamide:adipic acid (NIC:AA) cocrystal system was re-examined by combining structural and thermodynamic approaches. Differential scanning calorimetry (DSC), solid-state NMR (ssNMR), and variable-temperature powder X-ray diffraction (VT-PXRD) confirmed an enantiotropic relationship between the two polymorphs, evidenced by a direct solid-solid transformation from triclinic form I to monoclinic form II at ∼ 370 K. Solubility data subsequently indicated that this temperature is ∼78 K higher than the equilibrium transition temperature (289.2 ± 0.7 K), consistent with a phase transition hindered by a substantial activation barrier. This also explained why the reverse process was not detected on cooling within the time scale of the DSC, ssNMR, and VT-PXRD experiments. The relative stabilities of forms I and II, as well as their stability relative to dissociation into the coformers, at 298 K, were quantitatively established based on Gibbs energy, enthalpy, and entropy data obtained from solution calorimetry and solubility measurements. The results indicated that at 298 K: (
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.