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Overdia is a free open source code aimed at the definition of diabatic electronic states and the parametrization of Linear Vibronic Coupling (LVC) Hamiltonians from Time-Dependent Density Functional Theory calculations. It can be adopted to describe molecular potential energy surfaces close to conical intersections but it also parameterizes generalized LVC models for  molecular dimers and […]

FRETTY computes the excitation energy transfer (EET) rate according to Fermi Golden rule first order perturbation theory. It implements the expression known as Förster resonance energy transfer (FRET) rate. It is written in Fortran 90 apart few routines that are written in Fortran 77. Different models are adopted to compute the electronic coupling: dipolar interaction, […]

FCclasses 3.0 has been released. FCclasses3 is a code written by Fabrizio Santoro (ICCOM-CNR) and Javier Cerezo (UAM) in Fortran 90 with some parts in Fortran 77. It computes vibronic spectra and nonradiative rates based on the harmonic approximation. It has been released in July 2022. Last minor changes made on November 23 2022 (FCclasses […]

The interaction energies obtained by Quantum Mechanical (QM) calculations for a number of selected dimer conformations extracted from classical Molecular Dynamics (MD) simulations are used to parameterize inter-molecular force fields, through an iterative automated procedure. The Picky package is a collection of computational tools devised to obtain Quantum Mechanically Derived Force-Fields (QMD-FF) through an automated […]