Harmonic vibrational frequencies: an evaluation of Hartree− Fock, Møller− Plesset, quadratic configuration interaction, density functional theory, and semiempirical …

AP Scott, L Radom - The Journal of Physical Chemistry, 1996 - ACS Publications
Scaling factors for obtaining fundamental vibrational frequencies, low-frequency vibrations,
zero-point vibrational energies (ZPVE), and thermal contributions to enthalpy and entropy …

IMOMM: A new integrated ab initio + molecular mechanics geometry optimization scheme of equilibrium structures and transition states

F Maseras, K Morokuma - Journal of Computational Chemistry, 1995 - Wiley Online Library
A new computational scheme integrating ab initio and molecular mechanics descriptions in
different parts of the same molecule is presented. In contrast with previous approaches, this …

Vibrational frequency prediction using density functional theory

MW Wong - Chemical Physics Letters, 1996 - Elsevier
A comparison of several density functional methods for calculating vibrational frequencies is
reported. Methods examined include the local S-VWN (LSDA) functional, the non-local B …

Density functional theory and molecular clusters

P Hobza, J šponer, T Reschel - Journal of computational …, 1995 - Wiley Online Library
Density functional theory (DFT) methods, including nonlocal density gradient terms in the
exchange and correlation energy functionals, were applied to various types of molecular …

Benchmark energetic data in a model system for Grubbs II metathesis catalysis and their use for the development, assessment, and validation of electronic structure …

Y Zhao, DG Truhlar - Journal of chemical theory and computation, 2009 - ACS Publications
We present benchmark relative energetics in the catalytic cycle of a model system for
Grubbs second-generation olefin metathesis catalysts. The benchmark data were …

A new method for incorporating solvent effect into the classical, ab initio molecular orbital and density functional theory frameworks for arbitrary shape cavity

TN Truong, EV Stefanovich - Chemical Physics Letters, 1995 - Elsevier
A new method for calculating the solvation energy of an arbitrary shape solute is presented.
In this method, the solvents is treated as a homogeneous dielectric medium with a cavity …

The MIDI! basis set for quantum mechanical calculations of molecular geometries and partial charges

RE Easton, DJ Giesen, A Welch, CJ Cramer… - Theoretica chimica …, 1996 - Springer
We present a series of calculations designed to identify an economical basis set for
geometry optimizations and partial charge calculations on medium-size molecules …

A comparison of the accuracy of different functionals

CW Bauschlicher Jr - Chemical Physics Letters, 1995 - Elsevier
The errors in the computed geometries, zero-point energies, and atomization energies of
molecules containing only first and second row atoms are compared for several levels of …

Relationships between dissociation energies and electrostatic potentials of C NO2 bonds: applications to impact sensitivities

P Politzer, JS Murray - Journal of Molecular Structure, 1996 - Elsevier
New data for nitroalkanes support earlier results for nitroheterocycles indicating that C
NO2 dissociation energies are related to the computed electrostatic potential maxima on the …

Vibrational spectra of acid and alkaline glycine salts

MT Rosado, MLTS Duarte, R Fausto - Vibrational Spectroscopy, 1998 - Elsevier
The infrared and Raman spectra of crystalline acid (+ NH3CH2COOH· Cl−) and alkaline
(Na+· NH2CH2COO−) glycine salts were recorded and interpreted. The assignments were …