RSS 41 projects tagged "Chemistry"

No download Website Updated 16 Jul 2003 ChemApp

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Pop 30.89
Vit 1.17

ChemApp is a programming tool from the area of computational thermochemistry. It is a library consisting of a rich set of subroutines, based on the thermodynamic phase equilibrium calculation module of ChemSage. It permits the calculation of complex, multicomponent, multiphase chemical equilibria and their associated energy balances. ChemApp is available as object code for a wide range of platforms and as a shared library/DLL. ChemApp "light" is the free version of ChemApp, and although it is restricted in two ways compared to the regular version, it gives you almost the same functionality.

Download Website Updated 24 Sep 2007 Ghemical

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Pop 148.92
Vit 6.69

Ghemical is a molecular modelling software package with some nice 3D visualization tools. It supports methods based on both molecular mechanics and quantum mechanics (using MOPAC7, and MPQC for QM). The geometry optimization (for MM and QM) and molecular dynamics (for MM) algorithms are included. Ghemical is written in C++, and hopefully offers a good framework for a generic freeware molecular modelling tool.

Download Website Updated 17 Feb 2010 KMol

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Pop 36.08
Vit 3.81

KMol calculates the elemental compositon and molecular weight of compounds from their chemical formula. KMol supports user defined groups and elements, unlimited nesting of subgroups, multicomponent compounds, global and per-user symbol definitions.

Download Website Updated 28 Oct 2011 NAMD

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Pop 58.96
Vit 9.34

NAMD is a parallel, object-oriented molecular dynamics program designed for high-performance simulation of large biomolecular systems.

Download Website Updated 14 Feb 2012 VMD

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Pop 130.00
Vit 13.39

VMD (Visual Molecular Dynamics) is designed for the visualization and analysis of biological systems such as proteins, nucleic acids, lipid bilayer assemblies, etc. It may be used to view more general molecules, as VMD can read standard Protein Data Bank (PDB) files and display the contained structure. VMD provides a wide variety of methods for rendering and coloring a molecule: simple points and lines, CPK spheres and cylinders, licorice bonds, backbone tubes and ribbons, cartoon drawings, and others. VMD can be used to animate and analyze the trajectory of a molecular dynamics (MD) simulation. In particular, VMD can act as a graphical front end for an external MD program by displaying and animating a molecule undergoing simulation on a remote computer. VMD uses OpenGL and OpenGL Programmable Shading Language for high performance rendering of large structures.

Download Website Updated 02 Mar 2001 Mindy

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Pop 17.49
Vit 1.00

Mindy is a very simple serial molecular dynamics program derived from NAMD source code. It currently uses xplor parameter and structure files. The program is written in very straightforward C++.

Download Website Updated 10 Jul 2009 Open Babel

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Pop 98.08
Vit 5.30

Open Babel is a community-driven scientific project including both cross-platform programs and a developer library designed to support molecular modeling, chemistry, and many related areas, including interconversion of file formats and data.

Download Website Updated 16 Jul 2007 Biomolecule Toolkit

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Pop 31.75
Vit 3.24

The Biomolecule Toolkit is an Open Source library for the structural modeling of biological macromolecules. The toolkit provides a C++ interface for common tasks in computational structural biology, to facilitate the development of molecular modeling, design, and analysis tools.

Download Website Updated 25 Jan 2003 Kemistry

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Pop 14.49
Vit 1.44

Kemistry is a collection of chemistry applications written for the K Desktop Environment. Most of the applications are simply ports to KDE of existing X11 applications.

No download Website Updated 07 Nov 2012 Fityk

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Pop 215.10
Vit 19.63

Fityk is nonlinear curve-fitting and data analysis software. It allows data visualization, separation of overlapping peaks, and least squares fitting using standard Levenberg-Marquardt algorithm, a genetic algorithm, or Nelder-Mead simplex method. It knows about many functions (mostly bell-shaped, like Gaussian, Loretzian, Pearson 7, Voigt, Pseudo-Voigt, and Doniach-Sunjic) and user-defined functions can be easily added. It also enables background subtracting, data calibration, and task automation with a simple script language. It is mainly used to analyze powder diffraction patterns, chromatography, photoluminescence, infrared, and Raman spectroscopy, but it can be used to fit analytical functions to any kind of data.

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