Anomalous infrared intensity behavior of acetonitrile diffused into UiO-67

RP McDonnell, VSD Devulapalli, TH Choi… - Chemistry of …, 2023 - ACS Publications
UiO-67 metal–organic frameworks (MOFs) show promise for use in a variety of areas,
especially in industrial chemistry, as stable and customizable catalyst materials often driven …

Clathrate hydrates in interstellar environment

J Ghosh, RRJ Methikkalam, RG Bhuin… - Proceedings of the …, 2019 - National Acad Sciences
Clathrate hydrates (CHs) are ubiquitous in earth under high-pressure conditions, but their
existence in the interstellar medium (ISM) remains unknown. Here, we report experimental …

Existence of Acetaldehyde Clathrate Hydrate and Its Dissociation Leading to Cubic Ice under Ultrahigh Vacuum and Cryogenic Conditions

G Vishwakarma, BK Malla, S Chowdhury… - The Journal of …, 2023 - ACS Publications
Acetaldehyde in a dilute aqueous solution gets hydrated to produce a geminal diol under
atmospheric conditions. The acetaldehyde–water ice system under high pressure also …

Analysis of the cybotactic region of two renewable lactone–water mixed-solvent systems that exhibit synergistic Kamlet–Taft basicity

A Duereh, Y Sato, RL Smith Jr… - The Journal of Physical …, 2016 - ACS Publications
Kamlet–Taft solvatochromic parameters (polarity, basicity, acidity) of hydrogen bond donor
(HBD)/acceptor (HBA) mixed-solvent systems, water (H2O)− γ-valerolactone (GVL) …

Spontaneous formation of tetrahydrofuran hydrate in ultrahigh vacuum

J Ghosh, RG Bhuin, G Ragupathy… - The Journal of Physical …, 2019 - ACS Publications
Clathrate hydrates (CHs) typically nucleate under high-pressure conditions, but their
existence in ultrahigh vacuum (UHV) is an open question. Here, we report the formation of …

Facile Crystallization of Ice Ih via Formaldehyde Hydrate in Ultrahigh Vacuum under Cryogenic Conditions

J Ghosh, G Vishwakarma, S Das… - The Journal of Physical …, 2021 - ACS Publications
Although hexagonal ice (ice Ih) is the most common and highly studied crystalline form of
ice, its nucleation from clathrate hydrates is poorly understood. Here, we report the formation …

Infrared spectra of complex organic molecules in astronomically relevant ice mixtures-V. methyl cyanide (acetonitrile)

MG Rachid, WRM Rocha, H Linnartz - Astronomy & Astrophysics, 2022 - aanda.org
Context. The increasing sensitivity and resolution of ground-based telescopes have enabled
the detection of gas-phase complex organic molecules (COMs) across a variety of …

Desorption-induced evolution of cubic and hexagonal ices in an ultrahigh vacuum and cryogenic temperatures

G Vishwakarma, J Ghosh, T Pradeep - Physical Chemistry Chemical …, 2021 - pubs.rsc.org
Reflection absorption infrared spectroscopic investigations of multilayer films of acetonitrile
(ACN) and water in an ultrahigh vacuum under isothermal conditions showed the …

Rapid crystallization of amorphous solid water by porosity induction

G Vishwakarma, BK Malla, RRJ Methikkalam… - Physical Chemistry …, 2022 - pubs.rsc.org
Rapid crystallization of amorphous solid water (ASW) is often associated with crystallization
that initiates at random nucleation sites in the bulk and expands in all directions. In this work …

Does synergism in microscopic polarity correlate with extrema in macroscopic properties for aqueous mixtures of dipolar aprotic solvents?

A Duereh, Y Sato, RL Smith Jr, H Inomata… - The Journal of …, 2017 - ACS Publications
Aqueous mixtures of dipolar aprotic solvents (acetonitrile, γ-valerolactone, γ-butyrolactone,
tetrahydrofuran, 1, 4-dioxane, acetone, pyridine, N-methyl-2-pyrrolidone, N, N …