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This package was approved as a trusted package on 4/24/2019.

Olex² is a simple to use program containing numerous tools for the structure analysis and publication, including Fourier maps and voids calculation and visualisation, space group determination, calculation of esd's for almost any possible geometrical parameters, CIF translation to HTML and other documents, hydrogen atom placement and many others. The graphical user interface is the result of 10 years of striving to provide the best possible experience to modelling even the most challenging structures with ease. The software originated at Durham University and has been in active development since 2004.


  • Stereo visualisation
  • Full history of the structure - from solution - to the refinement
  • Structure analysis - pi-pi and other interactions, easy s.u. (esd) on many geometrical parameters calculation
  • Own olex2.refine structure refinement module
  • Seamless integration with Shelxl - switch between Shelxl and olex2.refine in no time
  • Integration with Platon software - every knowledge Platon has is unlocked
  • Multi-platform Windows-Linux-Mac (thanks to wxWidgets)
  • Superflip GUI, ShelXT, Sir and other structure solution programs at the push of the button
  • Postscript and bitmap (jpg, png etc) output to high resolution
  • Advanced tools for disorder modelling using rigid body refinemet
  • Structure reports (and CIF) - by managing metadata are always up to date even after a new structure solution!
  • Electron density maps (and they are live for contour maps)
  • Numerous drawing styles, including a few of predefined
  • Customisable main Menu and the GUI toolbar
  • Embedded Python and macro binding to the command line or interface elements

To install Olex², run the following command from the command line or from PowerShell:

C:\> choco install olex2

To upgrade Olex², run the following command from the command line or from PowerShell:

C:\> choco upgrade olex2


  • tools\chocolateyUninstall.ps1 Show
    $packageName = 'Olex2'
    $InstallDir = Join-Path $env:ProgramData $packageName
    $DeskShortcut = Join-Path ([System.Environment]::GetFolderPath('Desktop')) 'Olex2-1.2.lnk'
    $StartShortcut = Join-Path $env:ProgramData 'Microsoft\Windows\Start Menu\Programs\Olex2-1.2.lnk'
    if ([System.IO.File]::Exists($DeskShortcut)) {
        Write-Debug "Found the desktop shortcut. Deleting it..."
    if ([System.IO.File]::Exists($StartShortcut)) {
        Write-Debug "Found the Start Menu shortcut. Deleting it..."
    if (Test-Path $InstallDir) {
        Write-Debug "Found the Install Directory. Deleting it..."
          Remove-Item $InstallDir -Recurse -Force
  • tools\chocolateyinstall.ps1 Show
    $packageName = 'Olex2'
    $version     = '1.2.8'
    $url32       = ''
    $url64       = ''
    $checkSum32  = 'ea508f67fa117ee9f72a4db49fa8c518c432bdd2180a727b5532bbad791679ed'
    $checkSum64  = 'ca8805c4165e01f53626a9c82e600b9a2937363f010f39bab9d7877c43991566'
    $InstallDir = Join-Path $env:ProgramData $packageName
    $InstallArgs = @{
       PackageName   = $packageName
       Url           = $url32
       Url64         = $url64
       UnzipLocation = $InstallDir
       checkSum      = $checkSum32
       checkSum64    = $checkSum64
       checkSumType  = 'sha256'
    Install-ChocolateyZipPackage @InstallArgs
    $target   = Join-Path $InstallDir 'olex2.exe'
    $DeskShortcut = Join-Path ([System.Environment]::GetFolderPath('Desktop')) 'Olex2-1.2.lnk'
    $StartShortcut = Join-Path $env:ProgramData 'Microsoft\Windows\Start Menu\Programs\Olex2-1.2.lnk'
    Install-ChocolateyShortcut -ShortcutFilePath $DeskShortcut -TargetPath $target
    Install-ChocolateyShortcut -ShortcutFilePath $StartShortcut -TargetPath $target

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.


Package Maintainer(s)

Software Author(s)

  • Oleg Dolomanov
  • Horst Puschmann


Copyright © 2016 OlexSys


Version History

Version Downloads Last updated Status
Olex² 84 Monday, May 28, 2018 approved
Olex² 100 Friday, May 11, 2018 approved
Olex² 147 Tuesday, April 24, 2018 approved
Olex² 114 Friday, April 13, 2018 approved
Olex² 233 Tuesday, September 19, 2017 approved
Olex² 209 Wednesday, August 2, 2017 approved
Olex² 204 Friday, June 2, 2017 approved
Olex² 217 Wednesday, May 3, 2017 approved
Olex² 193 Friday, March 10, 2017 approved
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Discussion for the Olex² Package

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  • This discussion is only about Olex² and the Olex² package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
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  • Tell us what you love about the package or Olex², or tell us what needs improvement.
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