Adaptive Regularized Self-Consistent Field Iteration with Exact Hessian for Electronic Structure Calculation

2013 ◽  
Vol 35 (3) ◽  
pp. A1299-A1324 ◽  
Author(s):  
Zaiwen Wen ◽  
Andre Milzarek ◽  
Michael Ulbrich ◽  
Hongchao Zhang
Keyword(s):  
Electronic Structure ◽  
Structure Calculation ◽  
Electronic Structure Calculation ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field

Linear-scaling implementation of molecular response theory in self-consistent field electronic-structure theory

2007 ◽  
Vol 126 (15) ◽  
pp. 154108 ◽  
Author(s):  
Sonia Coriani ◽  
Stinne Høst ◽  
Branislav Jansík ◽  
Lea Thøgersen ◽  
Jeppe Olsen ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Electronic Structure Theory ◽  
Structure Theory ◽  
Linear Scaling ◽  
Molecular Response ◽  
Response Theory ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field

scholarly journals A multiconfigurational approach to the electronic structure of trichromium extended metal atom chains

2017 ◽  
Vol 46 (19) ◽  
pp. 6202-6211 ◽  
Author(s):  
M. Spivak ◽  
V. Arcisauskaite ◽  
X. López ◽  
J. E. McGrady ◽  
C. de Graaf
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Metal Atom ◽  
Density Functional ◽  
Functional Theory ◽  
Complete Active Space ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field ◽  
Capping Ligands

Density functional theory, Complete Active Space Self-Consistent Field (CASSCF) and perturbation theory (CASPT2) methodologies have been used to explore the electronic structure of a series of trichromium Extended Metal Atom Chains (EMACS) with different capping ligands.

Electronic Structure Underlying Colour Differences Between Diarylmethane Dyes and their Azomethine Analogues

2012 ◽  
Vol 65 (5) ◽  
pp. 520 ◽  
Author(s):  
Seth Olsen
Keyword(s):  
Perturbation Theory ◽  
Electronic Structure ◽  
Field Model ◽  
The State ◽  
Orbital State ◽  
Complete Active Space ◽  
Active Space ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field

We show that multireference perturbation theory based on a four-electron, three-orbital state-averaged complete active space self-consistent field model can reproduce the shift in colour between diarylmethane dyes and their corresponding azomethine analogues. We relate the azomethine shift to changes in the electronic structure, through an examination of the relative changes in the state-averaged one-electron Hamiltonian (Fock) and surprisal matrices that characterise the analogous self-consistent field solutions.

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