Appropriate description of intermolecular interactions in the methane hydrates: an assessment of DFT methods

Y Liu, J Zhao, F Li, Z Chen - Journal of computational chemistry, 2013 - Wiley Online Library
Accurate description of hydrogen‐bonding energies between water molecules and van der
Waals interactions between guest molecules and host water cages is crucial for study of …

The effects of dissolved hydrophobic and hydrophilic groups on water structure

Q Sun - Journal of Solution Chemistry, 2020 - Springer
In this work, Raman spectroscopy is employed to investigate the effects of hydrophobic and
hydrophilic groups on water structure. In aqueous methanol, ethanol, 1-propanol solutions …

Hydrocarbon/water interactions: Encouraging energetics and structures from DFT but disconcerting discrepancies for Hessian indices

KL Copeland, GS Tschumper - Journal of Chemical Theory and …, 2012 - ACS Publications
In this work, ab initio electronic structure computations have been used to systematically
examine the structures and energetics of nine small hydrocarbon molecules interacting with …

Computational analysis of vibrational frequencies and rovibrational spectroscopic constants of hydrogen sulfide dimer using MP2 and CCSD (T)

JBL Martins, RP Quintino, JRS Politi, D Sethio… - … Acta Part A: Molecular …, 2020 - Elsevier
Previous studies have shown that the weakly bonded H 2 S dimer demands high level
quantum chemical calculations to reproduce experimental values. We investigated the …

Blue-shift of the CH stretching vibration in CHF3-H2O complex: Matrix isolation infrared spectroscopy and ab initio computations

R Gopi, N Ramanathan, K Sundararajan - Chemical Physics, 2016 - Elsevier
As a result of hydrogen bonding in CHF 3-H 2 O complex, ab initio computations exhibited a
blue shift in the CH stretching region of CHF 3 sub-molecule. In this work, we have …

Intermolecular charge transfer as evidence for unusual O–H⋯ C (sp3) hydrogen bond

AN Isaev - Computational and Theoretical Chemistry, 2016 - Elsevier
Quantum chemical calculations of the HOH⋯ CH 4 complex, in which water acts as the
proton donor and methane is the acceptor, were performed at different levels of theory. The …

H 2 O–CH 4 and H 2 S–CH 4 complexes: a direct comparison through molecular beam experiments and ab initio calculations

D Cappelletti, A Bartocci, F Frati… - Physical Chemistry …, 2015 - pubs.rsc.org
New molecular beam scattering experiments have been performed to measure the total
(elastic plus inelastic) cross sections as a function of the velocity in collisions between water …

Structural distortions accompanying noncovalent interactions: Methane–water, the simplest C–H hydrogen bond

HI Rivera-Arrieta, JM Turney… - Journal of chemical …, 2017 - ACS Publications
Neglect of fragment structural distortions resulting from noncovalent interactions is a
common practice when examining a potential energy surface (PES). Herein, we make …

Radiation-Induced Transformation of CHF3···CO to the CF3···CO Complex: Matrix Isolation and Ab Initio Study

IS Sosulin, DA Tyurin, VI Feldman - The Journal of Physical …, 2020 - ACS Publications
The X-ray-induced transformations of CHF3/CO/Ar and CHF3/CO/Kr systems were
investigated by Fourier transform infrared (FTIR) matrix isolation spectroscopy at 6 K. It was …

Ab initio studies of some hydrogen-bonded complexes of fluoroform–Evidence for blue-shifted behaviour

P Ramasami, TA Ford - Journal of Molecular Structure, 2012 - Elsevier
We have extended a previous study of the complexes of fluoroacetylene with ammonia,
water, hydrogen fluoride, phosphine, hydrogen sulphide and hydrogen chloride to the …