Search results for "minimum energy path"

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A surface hopping algorithm for nonadiabatic minimum energy path calculations

2015

The article introduces a robust algorithm for the computation of minimum energy paths transiting along regions of near-to or degeneracy of adiabatic states. The method facilitates studies of excited state reactivity involving weakly avoided crossings and conical intersections. Based on the analysis of the change in the multiconfigurational wave function the algorithm takes the decision whether the optimization should continue following the same electronic state or switch to a different state. This algorithm helps to overcome convergence difficulties near degeneracies. The implementation in the MOLCAS quantum chemistry package is discussed. To demonstrate the utility of the proposed procedur…

Surface PropertiesComputationSurface hoppingCASSCFretinalHeterocyclic Compounds 1-RingHeterocyclic CompoundsasulamConvergence (routing)dioxetaneAdiabatic processWave functionSchiff BasesChemistrysurface hopping algorithmGeneral ChemistryKineticsComputational MathematicsExcited statePath (graph theory)RetinaldehydeQuantum TheoryThermodynamicsCarbamatesCASSCF; asulam; dioxetane; minimum energy path; retinal; surface hopping algorithm; thymineProtonsDegeneracy (mathematics)Algorithmminimum energy pathAlgorithmsThymineJournal of Computational Chemistry
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Photophysical Investigation of Iron(II) Complexes Bearing Bidentate Annulated Isomeric Pyridine-NHC Ligands

2020

The possibility of achieving luminescent and photophysically active metal-organic compounds relies on the stabilization of charge transfer states and kinetically and thermodynamically blocking non-...

[CHIM.INOR] Chemical Sciences/Inorganic chemistryDenticity02 engineering and technology[CHIM.INOR]Chemical Sciences/Inorganic chemistry010402 general chemistry01 natural sciencesChemical synthesischemistry.chemical_compoundPyridinePolymer chemistry[CHIM] Chemical Sciences[CHIM]Chemical Sciences[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical Chemistryfused NHCComputingMilieux_MISCELLANEOUSphotophysicsLigandMinimum Energy Path[CHIM.COOR] Chemical Sciences/Coordination chemistry021001 nanoscience & nanotechnology3. Good health0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materials[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry[CHIM.THEO] Chemical Sciences/Theoretical and/or physical chemistryGeneral Energyiron complexeschemistrydecay process0210 nano-technologyLuminescenceTD-DFT
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