Luscus - Molcas
Transcription
Luscus - Molcas
Luscus: an atomistic view to the material and the molecular science Goran Kovačević, Valera Veryazov Department of theoretical chemistry, Lund University [email protected], [email protected] -portable: luscus works on different operating systems -flexible: luscus supports external plug-ins for different file formats -fast: luscus handles orbitals much faster than competitive programs -intuitive: luscus has been designed by chemists, not programmers -open source project: integrated with MOLCAS, but can be easily interfaced to other codes What can luscus do? -visualize molecule up to thousands of atoms -build or edit molecular or material systems -use symmetry in molecular and crystal building -visualize properties, calculated by quantum chemical software: - molecular orbitals, electron densities and electrostatic potentials - geometry trajectories - molecular vibrations - dipole moments -produce screen and printing quality pictures Orbitals and densities Luscus can visualize orbitals and electron densities. Shown examples are the π orbital of naphthalene and the partial electron density resulting from the π orbitals. More than just balls and sticks Luscus can display unit cells, polyhedrons, cavities, surfaces. Electrostatic potential Luscus can plot electrostatic potential on any orbital or electron density. Editing using symmetry Add Fe atom and dummy point Add and position CH Apply C5 symmetry Apply inversion Adjust bonds Using symmetry Luscus can determine the symmetry of a molecule or it can apply symmetry operations in order to build symmetric molecules. View all orbitals and select active space In CASSCF calculations it is important to select the orbitals to be used as the active space. Luscus can visualize a set of orbitals and allow intuitive and simple way to select the active space. Background colors indicate the different orbital types