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Optimization of Gaussian-type basis sets for local spin density functional calculations. Part I. Boron through neon, optimization technique and validation

Nathalie Godbout, +3 more
- 01 Feb 1992 - 
- Vol. 70, Iss: 2, pp 560-571
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TLDR
In this paper, Gaussian-type orbital and auxiliary basis sets have been optimized for local spin density functional calculations for boron-neon atoms through neon and xenon.
Abstract
Gaussian-type orbital and auxiliary basis sets have been optimized for local spin density functional calculations This first paper deals with the atoms boron through neon Subsequent papers will provide a list through xenon The basis sets have been tested for their ability to give equilibrium geometries, bond dissociation energies, hydrogenation energies, and dipole moments These results indicate that the present optimization technique yields reliable basis sets for molecular calculations Keywords: Gaussian basis sets, density functional theory, boron–neon, geometries, energies of reactions

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Combined Experimental and DFT-TDDFT Computational Study of Photoelectrochemical Cell Ruthenium Sensitizers

TL;DR: The computed alignments of the molecular orbitals of the different complexes with the band edges of a model TiO(2) nanoparticle provide additional insights into the electronic factors governing the efficiency of dye-sensitized solar cell devices.
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Halogen bonding: the σ-hole

TL;DR: In this paper, the authors carried out a natural bond order B3LYP analysis of the molecules CF(3)X, with X = F, Cl, Br and I. The results showed that the Cl and Br atoms in these molecules closely approximate the [Formula: see text] configuration, where the z-axis is along the R-X bond.
Journal ArticleDOI

Identification of catalytic sites for oxygen reduction in iron- and nitrogen-doped graphene materials.

TL;DR: Fe-N-C materials quasi-free of crystallographic iron structures after argon or ammonia pyrolysis are synthesized, demonstrating that the turnover frequency of Fe-centred moieties depends on the physico-chemical properties of the support.
Journal ArticleDOI

Dynamic polarizabilities and excitation spectra from a molecular implementation of time‐dependent density‐functional response theory: N2 as a case study

TL;DR: In this paper, the authors report the implementation of time-dependent density functional response theory (TD-DFRT) for molecules using the timedependent local density approximation (TDLDA), which adds exchange and correlation response terms to their previous work which used the density functional theory (DFT) random phase approximation (RPA) [M. E. Casida, C. Jamorski, F. Bohr, J. Guan, and D. R. Salahub, in Theoretical and Computational Modeling of NLO and Electronic Materials, edited by S.
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Rhodium(III)-catalyzed heterocycle synthesis using an internal oxidant: improved reactivity and mechanistic studies.

TL;DR: Concerted metalation-deprotonation (CMD) is now proposed to be the turnover limiting step and DFT calculations conducted on this system agree with a stepwise C-N bond reductive elimination/N-O bond oxidative addition mechanism to afford the desired heterocycle.
References
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Book

Density-functional theory of atoms and molecules

TL;DR: In this paper, a review of current studies in density functional theory and density matrix functional theory is presented, with special attention to the possible applications within chemistry, including the concept of an atom in a molecule, calculation of electronegativities from the Xα method, pressure, Gibbs-Duhem equation, Maxwell relations and stability conditions.
BookDOI

Methods of Electronic Structure Theory

TL;DR: In this paper, the authors present a method for determining configuration interaction wave functions for the Electronic States of Atoms and Molecules: the Vector Method, which is a general computer program for ab initio calculations.
Book

Gaussian Basis Sets for Molecular Calculations

TL;DR: Huzinaga et al. as mentioned in this paper provided information pertinent to the Gaussian basis sets, with emphasis on lithium, radon, and important ions, and discussed the polarization functions prepared for lithium through radon for further improvement of the basis sets.
Book

Ab initio methods in quantum chemistry

K. P. Lawley
TL;DR: The Complete Active Space (CAS) SCF Method and its Applications in Electronic Structure Calculations Transition Metal Atoms and Dimers Weakly-Bonded Systems as discussed by the authors The MCSCF Method Propagator Methods Analytical Derivative Methods in Quantum Chemistry Symmetry and Degeneracy in X and Density Functional Theory Modern Valence Bond Theory
BookDOI

Applications of electronic structure theory

TL;DR: In this article, Hartree-Fock theory is used to predict the energy properties of small molecules and large molecules, and the impact of the Ab Initio calculations on Semiempirical and Model Calculations.
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