» Articles » PMID: 33615550

Looking into the Dynamics of Molecular Crystals of Ibuprofen and Terephthalic Acid Using O and H Nuclear Magnetic Resonance Analyses

Overview
Journal Magn Reson Chem
Specialty Chemistry
Date 2021 Feb 22
PMID 33615550
Citations 4
Authors
Affiliations
Soon will be listed here.
Abstract

Oxygen-17 and deuterium are two quadrupolar nuclei that are of interest for studying the structure and dynamics of materials by solid-state nuclear magnetic resonance (NMR). Here, O and H NMR analyses of crystalline ibuprofen and terephthalic acid are reported. First, improved O-labelling protocols of these molecules are described using mechanochemistry. Then, dynamics occurring around the carboxylic groups of ibuprofen are studied considering variable temperature O and H NMR data, as well as computational modelling (including molecular dynamics simulations). More specifically, motions related to the concerted double proton jump and the 180° flip of the H-bonded (-COOH) unit in the crystal structure were looked into, and it was found that the merging of the C=O and C-OH O resonances at high temperatures cannot be explained by the sole presence of one of these motions. Lastly, preliminary experiments were performed with a H- O diplexer connected to the probe. Such configurations can allow, among others, H and O NMR spectra to be recorded at different temperatures without needing to tune or to change probe configurations. Overall, this work offers a few leads which could be of use in future studies of other materials using O and H NMR.

Citing Articles

O NMR Spectroscopy Reveals CO Speciation and Dynamics in Hydroxide-Based Carbon Capture Materials.

Rhodes B, Schaaf L, Zick M, Pugh S, Hilliard J, Sharma S Chemphyschem. 2024; 26(5):e202400941.

PMID: 39565330 PMC: 11878753. DOI: 10.1002/cphc.202400941.


Temperature-induced mobility in octacalcium phosphate impacts crystal symmetry: water dynamics studied by NMR crystallography.

Nelson A, Papawassiliou W, Paul S, Hediger S, Hung I, Gan Z Faraday Discuss. 2024; 255(0):451-482.

PMID: 39390961 PMC: 11710991. DOI: 10.1039/d4fd00108g.


H/O Chemical Shift Waves in Carboxyl-Bridged Hydrogen Bond Networks in Organic Solids.

Wu G, Dai Y, Hung I, Gan Z, Terskikh V J Phys Chem A. 2024; 128(21):4288-4296.

PMID: 38748612 PMC: 11840671. DOI: 10.1021/acs.jpca.4c01866.


First Direct Insight into the Local Environment and Dynamics of Water Molecules in the Whewellite Mineral Phase: Mechanochemical Isotopic Enrichment and High-Resolution O and H NMR Analyses.

Goldberga I, Patris N, Chen C, Thomassot E, Trebosc J, Hung I J Phys Chem C Nanomater Interfaces. 2022; 126(29):12044-12059.

PMID: 35928237 PMC: 9340807. DOI: 10.1021/acs.jpcc.2c02070.


Residue-Specific High-Resolution O Solid-State Nuclear Magnetic Resonance of Peptides: Multidimensional Indirect H Detection and Magic-Angle Spinning.

Hung I, Keeler E, Mao W, Gorkov P, Griffin R, Gan Z J Phys Chem Lett. 2022; 13(28):6549-6558.

PMID: 35830592 PMC: 9888599. DOI: 10.1021/acs.jpclett.2c01777.


References
1.
Ishii Y, Wickramasinghe A, Matsuda I, Endo Y, Ishii Y, Nishiyama Y . Progress in proton-detected solid-state NMR (SSNMR): Super-fast 2D SSNMR collection for nano-mole-scale proteins. J Magn Reson. 2017; 286:99-109. PMC: 6387629. DOI: 10.1016/j.jmr.2017.11.011. View

2.
Wu G, Hung I, Gan Z, Terskikh V, Kong X . Solid-State O NMR Study of Carboxylic Acid Dimers: Simultaneously Accessing Spectral Properties of Low- and High-Energy Tautomers. J Phys Chem A. 2019; 123(38):8243-8253. DOI: 10.1021/acs.jpca.9b07224. View

3.
Schmidt J, Sebastiani D . Anomalous temperature dependence of nuclear quadrupole interactions in strongly hydrogen-bonded systems from first principles. J Chem Phys. 2005; 123(7):074501. DOI: 10.1063/1.2000241. View

4.
Carignani E, Borsacchi S, Geppi M . Dynamics by solid-state NMR: detailed study of ibuprofen Na salt and comparison with ibuprofen. J Phys Chem A. 2011; 115(32):8783-90. DOI: 10.1021/jp202650n. View

5.
Matlahov I, van der Wel P . Hidden motions and motion-induced invisibility: Dynamics-based spectral editing in solid-state NMR. Methods. 2018; 148:123-135. PMC: 6133742. DOI: 10.1016/j.ymeth.2018.04.015. View