Isotope effect on hydrogen bond symmetrization in hydrogen and deuterium fluoride crystals by molecular dynamics simulation
Literature Information
Hichem Dammak, Fabien Brieuc, Grégory Geneste, Marc Torrent, Marc Hayoun
The isotope effect on the collective proton/deuteron transfer in hydrogen and deuterium fluoride crystals has been investigated at 100 K by ab initio quantum-thermal-bath path-integral molecular dynamics (QTB-PIMD) simulation. The deuterons within a planar zigzag chain of the orthorhombic structure simultaneously flip between covalent and hydrogen bonds due to the barrier crossing through tunnelling. The height of the corresponding static barrier normalized for one deuteron is 29.2 meV. In the HF crystal, all the protons are located at the center of the heavy-atom distance. This evidences the symmetrization of the H-bonds, and indicates that the proton zero-point energy is above the barrier top. The decrease of the heavy-atom distance due to quantum fluctuations in both HF and DF crystals corresponds to a large decrease and an increase of the hydrogen and covalent bond lengths, respectively. Upon deuteration, the increase of the heavy-atom distance (Ubbelohde effect) is in agreement with experimental data.
Related Literature
Trends in M(CN) isomerism: A computational study of monocyanides of the main-group third row atoms
DOI: 10.1039/A901143I
Mesoscopic hydrodynamics of diphasic Lattice Bhatnagar Gross Krook fluid interfaces
DOI: 10.1039/A809793C
Surface kinetics using line of sight techniques: the reaction of chloroform with Cu(111)
DOI: 10.1039/A905989J
The effect of shear flow on the mesoscopic structure of partially miscible polymer blends
DOI: 10.1039/A901767D
You might also like
What is 3-Fluoro-2-methylbenzylamine (CAS: 771573-36-5)?
3-Fluoro-2-methylbenzylamine is an organic compound with the CAS number 771573-3...
Is Tert-butyl 2-(oxetan-3-ylidene)acetate (CAS: 1207175-03-8) safe?
Tert-butyl 2-(oxetan-3-ylidene)acetate is considered safe for its intended uses ...
What precautions should be taken when handling 4-Acetyl-2-fluorobenzonitrile (CAS: 214760-18-6)?
Proper personal protective equipment (PPE) such as gloves, goggles, and a lab co...
How is 2-Ethyl-4-methyl-1,3-thiazole (CAS: 15679-12-6) typically synthesized?
2-Ethyl-4-methyl-1,3-thiazole is commonly synthesized via the reaction of thiour...
How should 5',5''-([2,2'-Bithiophene]-5,5'-diyl)bis(([1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid)) (CAS: 1227780-71-3) be stored?
This compound should be stored in a cool, dry place away from direct sunlight an...
What regulatory guidelines apply to L-Lysine Acetate Salt (CAS: 52315-92-1)?
L-Lysine Acetate Salt (CAS: 52315-92-1) is subject to various regulatory guideli...
Is 6-Fluoro-3-hydroxy-2-pyrazinecarboxamide (CAS: 259793-96-9) safe?
6-Fluoro-3-hydroxy-2-pyrazinecarboxamide (CAS: 259793-96-9) is generally conside...
What are the physical and chemical properties of 1,1'-Sulfonylbis(1H-imidazole) (CAS: 7189-69-7)?
1,1'-Sulfonylbis(1H-imidazole) is a crystalline solid with a molecular weight of...
What industries use 4-methyl-7-nitro-1H-indole-3-carbonitrile (CAS: 289483-82-5)?
4-Methyl-7-nitro-1H-indole-3-carbonitrile (CAS: 289483-82-5) is primarily used i...
How should waste containing 5-Bromo-3-indolyl-beta-galactoside (CAS: 97753-82-7) be handled?
Waste containing 5-Bromo-3-indolyl-beta-galactoside (CAS: 97753-82-7) should be ...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














