2015
DOI: 10.1021/acs.jpcb.5b02777
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Car–Parrinello Molecular Dynamics Simulations of Infrared Spectra of Crystalline Vitamin C with Analysis of Double Minimum Proton Potentials for Medium-Strong Hydrogen Bonds

Abstract: We studied proton dynamics of a hydrogen bonds of the crystalline l-ascorbic acid. Our approach was based on the Car-Parrinello molecular dynamics. The focal point of our study was simulation of the infrared spectra of l-ascorbic acid associated with the O-H stretching modes that are very sensitive to the strength of hydrogen bonding. In the l-ascorbic acid there are four kinds of hydrogen bonds. We calculated their spectra by using anharmonic approximation and the time course of the dipole moment function as … Show more

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Cited by 21 publications
(16 citation statements)
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“…These bonds are characterized by essential mechanical and electric anharmonicity . Accurate treatment of systems with relatively short (strong) H‐bonds requires the use of advanced methods that are cumbersome and time consuming.…”
Section: Discussionmentioning
confidence: 99%
“…These bonds are characterized by essential mechanical and electric anharmonicity . Accurate treatment of systems with relatively short (strong) H‐bonds requires the use of advanced methods that are cumbersome and time consuming.…”
Section: Discussionmentioning
confidence: 99%
“…In the last few years, the snapshot methodology has become a powerful approach for analyzing the strength of HB interactions . First, approaches based on MD simulations have considered effects neglected in the static results, such as the thermal modes of nuclei .…”
Section: Introductionmentioning
confidence: 99%
“…It has already been shown that the quantization of motion can provide valuable information about the properties of the systems in different phases . Especially, it has been demonstrated that quantization treatment is useful for understanding HB interactions …”
Section: Introductionmentioning
confidence: 99%
“…Additionally, the changes in the vibrational spectra resulting from interaction between vitamin C and water were investigated [21]. Recent examination of the hydrogen bonding in the crystalline phase by Car-Parinello molecular dynamics allowed to observe the double minimum proton potentials [22]. On the other hand, exploration of the vibrational spectra of other vitamins by computational chemistry were occasional.…”
Section: Introductionmentioning
confidence: 99%
“…As demonstrated recently, such approach is feasible due to local character of the vibrational modes in the NIR region [33,44]. Numerous studies have been devoted to investigations of hydrogen bonding effects in MIR spectra [20,22,[45][46][47]. Recently, increases the interest in studying weak interactions, such as CH•••O hydrogen bonding [48,49].…”
Section: Introductionmentioning
confidence: 99%