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 …

The combined fragmentation and systematic molecular fragmentation methods

MA Collins, MW Cvitkovic… - Accounts of chemical …, 2014 - ACS Publications
Conspectus Chemistry, particularly organic chemistry, is mostly concerned with functional
groups: amines, amides, alcohols, ketones, and so forth. This is because the reactivity of …

Determining the stereo configuration of carbonyl sulfide dimers using Coulomb-explosion imaging

X Yu, X Zhao, Z Wang, Y Yang, X Zhang, P Ma, X Li… - Physical Review A, 2021 - APS
A four-body coincident measurement of carbonyl sulfide dimers is conducted using a
femtosecond laser-induced Coulomb explosion. Sequential and concerted processes that …

[HTML][HTML] Theory vs. experiment for molecular clusters: Spectra of OCS trimers and tetramers

L Evangelisti, C Perez, NA Seifert, BH Pate… - The Journal of …, 2015 - pubs.aip.org
All singly substituted 13 C, 18 O, and 34 S isotopomers of the previously known OCS trimer
are observed in natural abundance in a broad-band spectrum measured with a chirped …

Accurate vibrational spectra via molecular tailoring approach: A case study of water clusters at MP2 level

N Sahu, SR Gadre - The Journal of chemical physics, 2015 - pubs.aip.org
In spite of the recent advents in parallel algorithms and computer hardware, high-level
calculation of vibrational spectra of large molecules is still an uphill task. To overcome this …

[HTML][HTML] Observation of the elusive “oxygen-in” OCS dimer

I Miller, T Faulkner, J Saunier, PL Raston - The Journal of Chemical …, 2020 - pubs.aip.org
The carbonyl sulfide (OCS) dimer serves as a prototype system for studying intermolecular
forces between nonsymmetrical linear polyatomic molecules. Here, we performed a laser …

First infrared investigations of OCS–H2O, OCS–(H2O) 2, and (OCS) 2–H2O complexes isolated in solid neon: Highlighting the presence of two isomers for OCS–H2O

P Soulard, B Madebene, B Tremblay - The Journal of Chemical …, 2017 - pubs.aip.org
For the first time, complexes involving carbonyl sulfide (OCS) and water molecules are
studied by FTIR in solid neon. Many new absorption bands close to the known fundamental …

Understanding Packing Patterns in Crystals by Analysis of Small Aggregates: A Case Study of CS2

G Singh, R Verma, SR Gadre - The Journal of Physical Chemistry …, 2015 - ACS Publications
The molecular electrostatic potential (MESP) of the CS2 molecule, in conjunction with the
cluster building algorithm, is utilized for generating trial geometries of medium-sized (CS2) n …

Development and testing of an algorithm for efficient MP2/CCSD (T) energy estimation of molecular clusters with the 2–body approach

SS Khire, SR Gadre - Journal of Computational Chemistry, 2023 - Wiley Online Library
This work reports the development and testing of an automated algorithm for estimating the
energies of weakly bound molecular clusters employing correlated theory. Firstly, the …

Electrostatics and tailoring for aggregation of small linear molecules: An ab initio study

G Singh, SR Gadre - 2014 - nopr.niscpr.res.in
Features of the molecular electrostatic potential (MESP) for three linear triatomic molecules,
viz., CO 2, CS 2 and OCS are utilized for a comparative study of their aggregation into small …