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- Title
Terahertz Spectroscopy and Density Functional Theory Analysis of the Molecular Interactions in Crystalline Orotic Acid Monohydrate.
- Authors
Zheng, Zh.; Zeng, F.; Zhi, Y.; Zhu, L.
- Abstract
The terahertz (THz) absorption spectrum of orotic acid monohydrate in the crystalline phase was experimentally obtained by using THz time-domain spectroscopy and computationally simulated by using density functional theory. Four distinct peaks were observed within the range of 12–128 cm–1, and were computationally reproduced by simulations using the Perdew–Burke–Ernzerhof functional. A comparison of the experimental and calculated data indicated that the measured peaks mostly originated from intermolecular forces in which the interactions between orotic acid molecules dominated. In addition, the feature located at 110.2 cm–1 was attributed to the interactions between orotic acid and water molecules. These findings demonstrate that THz spectroscopy can be used to monitor molecular dehydration during industrial production.
- Subjects
OROTIC acid; DENSITY functional theory; MOLECULAR theory; TERAHERTZ spectroscopy; FUNCTIONAL analysis; INTERMOLECULAR forces
- Publication
Journal of Applied Spectroscopy, 2022, Vol 89, Issue 2, p316
- ISSN
0021-9037
- Publication type
Article
- DOI
10.1007/s10812-022-01360-2