Electronic density response of liquid water using time-dependent density functional theory

2006 ◽  
Vol 73 (9) ◽  
Author(s):  
I. Tavernelli
Keyword(s):  
Density Functional Theory ◽  
Liquid Water ◽  
Density Functional ◽  
Time Dependent ◽  
Electronic Density ◽  
Functional Theory ◽  
Density Response ◽  
Dependent Density

Time-Dependent Density Functional Theory Molecular Dynamics Simulations of Liquid Water Radiolysis

ChemPhysChem ◽  
2008 ◽  
Vol 9 (14) ◽  
pp. 2099-2103 ◽  
Author(s):  
Ivano Tavernelli ◽  
Marie-Pierre Gaigeot ◽  
Rodolphe Vuilleumier ◽  
Carlos Stia ◽  
Marie-Anne Hervé du Penhoat ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Density Functional Theory ◽  
Molecular Dynamics Simulations ◽  
Liquid Water ◽  
Density Functional ◽  
Time Dependent ◽  
Water Radiolysis ◽  
Functional Theory ◽  
Dynamics Simulations ◽  
Dependent Density

scholarly journals Requirements of first-principles calculations of X-ray absorption spectra of liquid water

2016 ◽  
Vol 18 (1) ◽  
pp. 566-583 ◽  
Author(s):  
Thomas Fransson ◽  
Iurii Zhovtobriukh ◽  
Sonia Coriani ◽  
Kjartan T. Wikfeldt ◽  
Patrick Norman ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Liquid Water ◽  
First Principles ◽  
Density Functional ◽  
Time Dependent ◽  
First Principles Calculations ◽  
Functional Theory ◽  
X Ray ◽  
X Ray Absorption ◽  
Dependent Density

Transition-potential and time-dependent density functional theory XAS calculations are presented for water and ice, showing excellent agreement between TDDFT results and experimental spectra.

Benchmark of Simplified Time-Dependent Density Functional Theory for UV-Vis Spectral Properties of Porphyrinoids

2019 ◽  
Author(s):  
Kamal Batra ◽  
Stefan Zahn ◽  
Thomas Heine
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Large Scale ◽  
Absolute Error ◽  
Time Dependent ◽  
Basis Set ◽  
Basis Sets ◽  
Functional Theory ◽  
Framework Materials ◽  
Dependent Density

<p>We thoroughly benchmark time-dependent density- functional theory for the predictive calculation of UV/Vis spectra of porphyrin derivatives. With the aim to provide an approach that is computationally feasible for large-scale applications such as biological systems or molecular framework materials, albeit performing with high accuracy for the Q-bands, we compare the results given by various computational protocols, including basis sets, density-functionals (including gradient corrected local functionals, hybrids, double hybrids and range-separated functionals), and various variants of time-dependent density-functional theory, including the simplified Tamm-Dancoff approximation. An excellent choice for these calculations is the range-separated functional CAM-B3LYP in combination with the simplified Tamm-Dancoff approximation and a basis set of double-ζ quality def2-SVP (mean absolute error [MAE] of ~0.05 eV). This is not surpassed by more expensive approaches, not even by double hybrid functionals, and solely systematic excitation energy scaling slightly improves the results (MAE ~0.04 eV). </p>

Photophysical Properties of N-Methyl and N-Acetyl Substituted Alloxazine: A Theoretical Investigation

2021 ◽  
Author(s):  
Huimin Guo ◽  
Xiaolin Ma ◽  
Zhiwen Lei ◽  
Yang Qiu ◽  
Bernhard Dick ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Theoretical Investigation ◽  
Density Functional ◽  
Photophysical Properties ◽  
Time Dependent ◽  
Functional Theory ◽  
Td Dft ◽  
Dependent Density

The electronic structure and photophysical properties of a series of N-Methyl and N-Acetyl substituted alloxazine (AZs) were investigated with extensive density functional theory (DFT) and time-dependent density functional theory (TD-DFT)...

ODE integration schemes for plane-wave real-time time-dependent density functional theory

2019 ◽  
Vol 150 (1) ◽  
pp. 014101 ◽  
Author(s):  
Daniel A. Rehn ◽  
Yuan Shen ◽  
Marika E. Buchholz ◽  
Madan Dubey ◽  
Raju Namburu ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Plane Wave ◽  
Real Time ◽  
Density Functional ◽  
Time Dependent ◽  
Functional Theory ◽  
Integration Schemes ◽  
Dependent Density
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