MOLCAS Download Area
So, you decided you want Molcas? Here, you can find
detailed information regarding purchases and our license
policy. After filling in the order form, you will have
to print and sign both the order and copyright pages.
Then, you can either scan the pages and e-mail them
(fast procedure) or send the papers by regular mail (can
be quite slow).
If you have a valid license for Molcas, you may download
pre-built executables for the platforms listed below. This
page is accessible only if you have a valid user
ID, which you should have received if your order was
Verify that precompiled Molcas binaries are compatible with your operating system
If you buy a Molcas license, which includes the source code,
you can compile Molcas for practically any operating system which
has Fortran and C compiler (Linux, MacOS, Windows, AIX, Solaris, FreeBSD, etc.)
If you plan to buy a license with BINARY only option, we recommend
you to verify that we have binaries compatible with your operating system.
The official list of the distributed binaries
is given below. NOTE: please be sure that
the GNU Fortran (gfortran) and C (gcc) compilers as well
as a Perl interpreter are properly installed and
available on your system. You can easily check
whether your system is compatible with an interested
binary distribution by downloading the Molcas's binary
compatibility checker. By clicking on the interested
package you will be prompted to download an
archive. After downloading and unpacking it,
just enter the 'M8checkbin' directory and execute the
'test.pl' script. If everything went well, then
you will get the "Congratulations! Your platform is
suitable ..." message. Otherwise, you should check
another binary distribution.
You can build/view molecules, visualize orbitals and/or
select active spaces, and a lot more with a program
called Luscus. Luscus is available free of charge and
can work with plugins, an easy way to interface with
your own programs. Luscus is based on Molcas
GV, for which development has now been
discontinued in favour of Luscus. The Windows binaries
are avaiable here.
Documentation for off-line viewing
If you want to help destroy some trees, you can print
out these files:
- Molcas logo 750.
- Molcas logo 300.
Extra Tools and downloads
Download Tools directory containing patch for Tinker interface and Grid to Cube converter.