# orca

## Summary

+ **Module Name:** orca
+ **Support Level:** Secondary Support
+ **Software Access Level:** Open Access
+ **Home Page:** [https://orcaforum.cec.mpg.de](https://orcaforum.cec.mpg.de)

## Software Description

ORCA is a quantum chemistry tool with specific emphasis on spectroscopic
properties of open-shell molecules. It features a wide variety of
standard quantum chemical methods ranging from semiempirical methods to
DFT to correlated ab initio methods. It can also treat environmental and
relativistic effects.
## General Linux

To load this module for use in a Linux environment, you can run the command:

	module load orca

Depending on where you are working, there may be more than one version of orca available.
To see which modules are available for loading you can run:

	module avail orca