Vibrational self-consistent field calculations for spectroscopy of biological molecules: new algorithmic developments and applications
This review describes the vibrational self-consistent field (VSCF) method and its other
variants for computing anharmonic vibrational spectroscopy of biological molecules. The …
variants for computing anharmonic vibrational spectroscopy of biological molecules. The …
Comprehensive benchmark results for the accuracy of basis sets for anharmonic molecular vibrations
H Mitra, TK Roy - The Journal of Physical Chemistry A, 2020 - ACS Publications
The accuracy and convergence of a series of commonly used split-valence electronic basis
sets are systematically investigated for the anharmonic molecular vibrational spectroscopic …
sets are systematically investigated for the anharmonic molecular vibrational spectroscopic …
Accuracy of different electronic basis set families for anharmonic molecular vibrations: A comprehensive benchmark study
D Sharma, TK Roy - The Journal of Physical Chemistry A, 2023 - ACS Publications
In this work, the accuracy and convergence of different electronic basis set families for the
computation of anharmonic molecular vibrational spectroscopic calculations are …
computation of anharmonic molecular vibrational spectroscopic calculations are …
Performance of vibrational self-consistent field theory for accurate potential energy surfaces: fundamentals, excited states, and intensities
TK Roy - The Journal of Physical Chemistry A, 2022 - ACS Publications
The performance of vibrational structure calculations beyond harmonic approximation in the
framework of the vibrational self-consistent field method with second-order perturbation …
framework of the vibrational self-consistent field method with second-order perturbation …
An approximation to the vibrational coupled-cluster method for CH-stretching of large molecules: application to naphthalene and anthracene
N Palanisamy, S Banik - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
We propose an approximation to the vibrational coupled-cluster method (VCCM) to describe
the CH-stretching region of the vibrational spectrum of large molecules. The vibrational …
the CH-stretching region of the vibrational spectrum of large molecules. The vibrational …
First-principles anharmonic quantum calculations for peptide spectroscopy: VSCF calculations and comparison with experiments
First-principles quantum calculations for anharmonic vibrational spectroscopy of three
protected dipeptides are carried out and compared with experimental data. Using hybrid …
protected dipeptides are carried out and compared with experimental data. Using hybrid …
Intrinsic structure of pentapeptide Leu-enkephalin: geometry optimization and validation by comparison of VSCF-PT2 calculations with cold ion spectroscopy
The intrinsic structure of an opioid peptide [Ala2, Leu5]-leucine enkephalin (ALE) has been
investigated using first-principles based vibrational self-consistent field (VSCF) theory and …
investigated using first-principles based vibrational self-consistent field (VSCF) theory and …
Approximate first-principles anharmonic calculations of polyatomic spectra using MP2 and B3LYP potentials: comparisons with experiment
Anharmonic vibrational spectroscopy calculations using MP2 and B3LYP computed
potential surfaces are carried out for a series of molecules, and frequencies and intensities …
potential surfaces are carried out for a series of molecules, and frequencies and intensities …
Performance of Effective Harmonic Oscillator Approach for the Calculations of Vibrational Transition Energies of Large Molecules
The accuracy and performance of the effective harmonic oscillator approximation for the
description of anharmonic vibrational structure calculations are tested for large molecular …
description of anharmonic vibrational structure calculations are tested for large molecular …
Vibrational mode tailoring approach: an efficient route to compute anharmonic molecular vibrations of large molecules
H Mitra, D Sharma, TK Roy - Physical Chemistry Chemical Physics, 2024 - pubs.rsc.org
In this study, an efficient route to compute the multidimensional potential energy surfaces
(PESs) for the description of quantum anharmonic molecular vibrations is presented. For …
(PESs) for the description of quantum anharmonic molecular vibrations is presented. For …