نتایج جستجو برای: tddft

تعداد نتایج: 765  

Journal: :Crystals 2022

The optical properties of hybrid systems composed silver nanoparticles (NPs) and azobenzene molecules were systematically investigated by combining the real-time time-dependent density functional theory (RT-TDDFT) approach with classical electrodynamics finite difference time domain (FDTD) technique for solution Maxwell’s equations. In order to reflect chemical interaction between metal more ex...

Journal: :ACS omega 2021

With the view of achieving a better performance in task assignment and load-balancing, top-level designed forecasting system for predicting computational times density-functional theory (DFT)/time-dependent DFT (TDDFT) calculations is presented. The time assumed as intrinsic property molecule. Based on this assumption, established using “reinforced concrete”, which combines cheminformatics, sev...

Journal: :Dalton transactions 2015
A Hasheminasab L Wang M B Dawadi J Bass R S Herrick J J Rack C J Ziegler

Re(CO)3 conjugates 1 and 2 that incorporate azobenzenes can be readily generated via one-pot reactions using Schiff base reaction forming conditions. Excitation of the MLCT bands in 1 and 2 results in isomerization of the azobenzene moiety, and this process has been investigated via time-resolved photophysics and TDDFT calculations.

Journal: :Chemical communications 2012
Victor N Nemykin Anna E Polshyna Elena A Makarova Nagao Kobayashi Evgeny A Lukyanets

Minor products in the reaction between substituted 1,3-diiminoisoindolines and 2,5-diamino-3,4-dicyanothiophene were identified as the nickel seco-tribenzoporphyrazines 4 and 5, which have been characterized by UV-vis, MCD, NMR, and mass spectroscopy. Experimentally observed tetraazachlorin-type UV-vis spectra of new seco-tribenzoporphyrazines were explained on the basis of DFT and TDDFT calcul...

Journal: :Physical review 2021

The theoretical understanding of plasmon behavior is crucial for an accurate interpretation inelastic scattering diagnostics in many experiments. We highlight the utility linear response time-dependent density functional theory (LR-TDDFT) as a first-principles framework consistently modeling properties. provide comprehensive analysis plasmons aluminum from ambient to warm dense matter condition...

Journal: :Physical chemistry chemical physics : PCCP 2015
Mohammad M Rafiee Fanood Maurice H M Janssen Ivan Powis

Limonene is ionized by circularly polarized 420 nm femtosecond laser pulses. Ion mass and photoelectron energy spectra identify the dominant (2 + 1) multiphoton ionization mechanism, aided by TDDFT calculations of the Rydberg excitations. Photoelectron circular dichroism measurements on pure enantiomers reveal a chiral asymmetry of ±4 %.

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