Quantum chemical investigations on molecular clusters

SR Gadre, SD Yeole, N Sahu - Chemical reviews, 2014 - ACS Publications
A cluster is an aggregate of bound atoms or molecules, intermediate in size between a
molecule and a bulk solid. Clusters of a variety of molecules are receiving increasing …

Perspectives on molecular simulation of clathrate hydrates: Progress, prospects and challenges

NJ English, JMD MacElroy - Chemical Engineering Science, 2015 - Elsevier
In this review, the intriguing properties of clathrate hydrates shall be discussed, as well as
their environmental impact and prospects for energy exploitation in industry. In particular, the …

Investigation on the Structure, Formation Mechanism, and Surface Morphology of CP–CH4 Binary Hydrate

QN Lv, K Zhang, XS Li, G Li - Energy & Fuels, 2023 - ACS Publications
Cyclopentane (CP) is often used as a hydrate former, which shows an excellent promotion
effect in hydrate-based desalination. To elucidate the guest molecule distribution and …

[HTML][HTML] H2, HD, and D2 in the small cage of structure II clathrate hydrate: Vibrational frequency shifts from fully coupled quantum six-dimensional calculations of the …

D Lauvergnat, P Felker, Y Scribano… - The Journal of …, 2019 - pubs.aip.org
We report the first fully coupled quantum six-dimensional (6D) bound-state calculations of
the vibration-translation-rotation eigenstates of a flexible H 2, HD, and D 2 molecule …

[HTML][HTML] Intramolecular stretching vibrational states and frequency shifts of (H2) 2 confined inside the large cage of clathrate hydrate from an eight-dimensional …

PM Felker, D Lauvergnat, Y Scribano… - The Journal of …, 2019 - pubs.aip.org
We report the results of calculations pertaining to the HH intramolecular stretching
fundamentals of (pH 2) 2 encapsulated in the large cage of structure II clathrate hydrate. The …

Storage Capacity and Vibration Frequencies of Guest Molecules in CH4 and CO2 Hydrates by First-Principles Calculations

X Cao, Y Su, Y Liu, J Zhao, C Liu - The Journal of Physical …, 2014 - ACS Publications
Using first-principle calculations at B97-D/6-311++ G (2d, 2p) level, we systematically
explore the gas capacity of five standard water cavities (512, 435663, 51262, 51264, and …

Infrared spectra of gas hydrates from first-principles

TM Vlasic, PD Servio, AD Rey - The Journal of Physical Chemistry …, 2019 - ACS Publications
The infrared spectra of sII gas hydrates have been computed using density functional theory
for the first time, at equilibrium, and under pressure. It is also the first account of a full …

Stability, vibrations, and diffusion of hydrogen gas in clathrate hydrates: insights from Ab initio calculations on condensed-phase crystalline structures

Q Lu, X He, W Hu, X Chen, J Liu - The Journal of Physical …, 2019 - ACS Publications
Despite relevance to potential use as environmentally friendly hydrogen storage materials,
major gaps in the understanding of the structures and diffusion of hydrogen gas in clathrate …

Vibrational modes of hydrogen hydrates: A first-principles molecular dynamics and Raman spectra study

Z Futera, M Celli, L del Rosso… - The Journal of …, 2017 - ACS Publications
We have employed classically propagated molecular dynamics (MD), within the framework
of density functional theory (DFT), to calculate vibrational spectral band of molecular …

The molecular insight into the “Zeolite-ice” as hydrogen storage material

Y Wang, K Yin, S Fan, X Lang, C Yu, S Wang, S Li - Energy, 2021 - Elsevier
Abstract “Zeolite-ice” is cavities structure constructed by water molecules that held together
by hydrogen-bonds, formed by propane remove from propane hydrate, which structure is …