ORCA is an ab initio quantum chemistry program package for modern electronic structure methods including density functional theory, many-body perturbation, coupled cluster, multireference methods, and semi-empirical quantum chemistry methods. Its main field of application is larger molecules, transition metal complexes, and their spectroscopic properties. ORCA is developed in the research group of Frank Neese. The free version is available only for academic use at academic institutions. Graphic interfaces Avogadro Chemcraft Molden Ascalaph Designer Gabedit See also Orca (assistive technology) List of quantum chemistry and solid-state physics software References

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ORCA is an ab initio quantum chemistry program package for modern electronic structure methods including density functional theory, many-body perturbation, coupled cluster, multireference methods, and semi-empirical quantum chemistry methods. Its main field of application is larger molecules, transition metal complexes, and their spectroscopic properties. ORCA is developed in the research group of Frank Neese. The free version is available only for academic use at academic institutions.

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ORCA across IJR

In the Arcade

Landgrab: Sancho of Majorca EditionPaint the map. Hold the line. Take the world. Now starring the Sancho of Majorca parody.Landgrab: James of Majorca EditionPaint the map. Hold the line. Take the world. Now starring the James of Majorca parody.Landgrab: Philip of Majorca EditionPaint the map. Hold the line. Take the world. Now starring the Philip of Majorca parody.

Studio characters

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