Open Source Fortran Chemistry Software

Towhee is a Monte Carlo molecular simulation code originally designed for the prediction of fluid phase equilibria using atom-based force fields and the Gibbs ensemble with particular attention paid to algorithms addressing molecule conformation sampling.

XDrawChem is an application for drawing and analyzing chemical structures and reactions. Please visit the website for full details. Download source and binary releases here, and clone the source from GitHub at the external link above.

I.S.A.A.C.S. Interactive Structure Analysis of Amorphous and Crystalline Systems is a cross-platform software developed to analyze the structural characteristics of three-dimensional models built by computer simulations.

RINGS "Rigorous Investigation of Networks Generated using Simulations" is a scientific code developed in Fortran90/MPI to analyze the results of molecular dynamics simulations. Its main feature is the analysis of the connectivity using ring statistics.

IFEFFIT is a library and set of interactive programs for the analysis of x-ray absorption fine-structure (XAFS) data. IFEFFIT combines state-of-the-art analysis algorithms with graphical display of XAFS data, and general data manipulation. It can be

Notice: RMG-Java is no longer in active development. Please find the latest version written in Python at http://reactionmechanismgenerator.github.io To see the website o the old Java version of RMG, visit http://rmg.sourceforge.net RMG (Java version) is an automatic chemical reaction mechanism generator that constructs kinetic models composed of elementary chemical reaction steps using a general understanding of how molecules react (currently limited to C, H, O, and S atoms).

Do you work with chemical reactors? Are you curious about them? ASALI is the open-source code that you are looking for. Chemical reactor models, transport/thermodynamic properties of gases, equilibrium calculations. ASALI couples all these features with an user friendly graphical interface. Modeling chemical reactors has never been so easy.

Molecular Graphics, Molecular Dynamics, Optimization, Quantum chemistry. Molecular model building. Explicit and implicit water models. http://www.biomolecular-modeling.com/Products.html

Cantera is a suite of object-oriented software tools for problems involving chemical kinetics, thermodynamics, and/or transport processes. It can be used from MATLAB, Python, C++, or Fortran.

Larch is a scientific data processing language that is designed to be easy to use for novices and complete enough for advanced data processing and analysis. Larch provides a wide range of functionality for dealing with arrays of scientific data, and basic tools to make it easy to use and organize complex data. Larch has been primarily developed for dealing with x-ray spectroscopic and scattering data, especially the kind of data collected at modern synchrotrons and x-ray sources. Larch is written in Python and relies heavily on the standard tools for scientific computing with Python (numpy, scipy, matplotlib, and h5py).

ProtoFit is software for modeling the acid/base behavior of surfaces. The software is used for parameterizing surface protonation models and for visualization of potentiometric titration data.

Scalable Molecular Analysis Solver for High-performance computing systems (SMASH) is massively parallel software for quantum chemistry calculations and released under the Apache 2.0 open source license. It is currently capable of energy, analytical gradient, and geometry optimization calculations of Hartree-Fock theory and Density Functional Theory (DFT), and energy calculations of Second-order Moller-Plesset (MP2) perturbation theory. DFT calculations can be performed on 100,000 CPU cores with high parallel efficiency.

ERmod (Energy Representation Module) is a program to calculate the solvation free energy based on the energy representation method (J. Chem. Phys. 113, 6070 (2000)). The program allows users to calculate the solvation free energy to arbitrary solvents, including inhomogeneous systems, and can run in cooperation with state-of-art molecular simulation software, such as LAMMPS, GROMACS and/or AMBER.

OpenChem Workbench is an enterprise software suite designed for creating, saving, searching, and exchanging chemical data. It uses existing tools (NIST, Gaussian, CHEMKIN) and its own (easy molecule building, mechanism management, group additivity, etc.)

This FORTRAN program package finds the parameters involved in amylopectin chain-length distribution (CLD) biosynthesis by fitting experimental CLD data to a model which incorporates the underlying starch biosynthesis. The amylopectin CLD biosynthesis model used by this program is explained in the article “A Parameterized Model of Amylopectin Synthesis provides key insights into the Synthesis of Granular Starch”, by Alex Chi Wu, Matthew K. Morell and Robert G. Gilbert. The downloadable .zip file contain the main code readily usable after compiling. An instruction manual is also provided. This is an open source program.

atomes is a Free (Open Source) cross-platform software licensed under the terms of the Affero GPL v3+ license. atomes is a toolbox developed to analyze, to visualize and to create/edit 3D atomic scale models. atomes also provides an advanced input preparation system for further calculations using well known molecular dynamics codes: - Classical MD : DL-POLY and LAMMPS - ab-initio MD : CPMD and CP2K - QM-MM MD : CPMD and CP2K atomes is developed by Dr. Sébastien Le Roux, research engineer for the CNRS Dr. Sébastien Le Roux works at the Institut de Physique et Chimie des Matériaux de Strasbourg.

pyPulsar is a program for simulation and fitting of solid-state NMR spectra. It provides scripting facilities using Python. (This project was not developed for a long time: It will be soon moved in a new project currently developed)

This software has moved to http://www.poissonboltzmann.org/.

BrennerMD is a public domain Fortran molecular dynamics program by Donald Brenner and other people. This project is to maintain the original source code and to build a Python interface on top of it.

electronic structure calculations with tight-binding density functional theory

DISCUS is a set of programs to simulate the atomic structure of disordered materials and calculate experimental properties such as diffuse scattering or the atomic pair distribution function.

A Suite of Programs implementing a fast approach to the Debye Function Analysis (DFA) of powder diffraction data from nanocrystalline and/or non-ordered materials. See J. Appl. Cryst. 2015, 48, 2026-2032

The Electron Pair Localization Function (EPLF) helps to understand chemical bonding in molecular systems. This code uses a modified formulation which allows the exact calculation of the EPLF for usual wave functions (HF,KS,CAS,...)

An analytical generalized Born model to calculate electrostatic solvation energy that accurately reproduces the linearized Poisson-Boltzmann equation. More about this method is explained in J. Phys. Chem. B, 111, 3055-3061 (2007).

(We have migrated this project to github [June 1 2015)] http://github.com/msg-byu/enumlib). The source files have been removed from sourceforge. Go to github (link above) for the latest copy. <<<< OLD SUMMARY >>>> A Fortran 95 implementation of an algorithm for generating derivative structures of a parent lattice. The algorithm is discussed in detail in: Gus L. W. Hart and Rodney W. Forcade, "Algorithm for generating derivative structures," Phys. Rev. B 77 224115 (26 June 2008) http://msg.byu.edu/papers/GLWHart_enumeration.pdf Gus L. W. Hart and Rodney W. Forcade, "Generating derivative structures from multilattices: Application to hcp alloys," Phys. Rev. B 80 014120 (July 2009) http://msg.byu.edu/papers/multi.pdf Gus L. W. Hart, Lance J. Nelson, and Rodney W. Forcade, "Generating derivative structures at a fixed concentration," Comp. Mat. Sci. 59 101-107 (March 2012) http://msg.byu.edu/papers/enum3.pdf