Now showing items 1-3 of 3
Solvent effects on the vibronic one-photon absorption profiles of dioxaborine heterocycles
(Georgia Institute of Technology, 2005-11)
The vibronic profiles of one-photon absorption spectra of dioxaborine heterocycles in gas phase and solution have been calculated at the Hartree-Fock and density-functional-theory levels. The polarizable continuum model ...
Density fitting and Cholesky decomposition approximations in symmetry-adapted perturbation theory: Implementation and application to probe the nature of π-π interactions in linear acenes
(Georgia Institute of Technology, 2010-05)
Density fitting (DF) approximations have been used to increase the efficiency of several quantum mechanical methods. In this work, we apply DF and a related approach, Cholesky decomposition (CD), to wave function-based ...
Hybrid correlation models based on active-space partitioning: Seeking accurate O(N ⁵) ab initio methods for bond breaking
(Georgia Institute of Technology, 2006-08)
Møller-Plesset second-order (MP2) perturbation theory remains the least expensive standard ab initio method that includes electron correlation, scaling as O(N ⁵) with the number of molecular orbitals N. Unfortunately, when ...