chemistry trial software / shareware for windows

ChemDuet is the premier chemistry software designed for your iPod. ChemDuet gives you quick access to atomic properties, wherever you go with your iPod.
The included data is based on Synergy Creations award-winning Periodic Table software, which is available for Macintosh and Windows XP computers. (ChemDuet was formerly known as periodicPod.)
Main features:
- Quick access to a wide variety of atomic properties--wherever you go!
- Easily adjust units of properties stored on iPod.
- Easy to use iPod-style interface.
- User configurable--choose what data you want to load onto your iPod.
- iPod installers available for Mac OS X and Windows XP!

CHEMIX School is an educational software which will help you to learn chemistry. CHEMIX School is geared toward college-level chemistry, but is also appropriate for high-school students, chemists, and teachers.
CHEMIX School is equipped with a periodic table containing physical properties for all stable isotopes including more than 2500 unstable isotopes and 600 decays.
CHEMIX School is also equipped with a molecular 3-D viewer, calculator, curve fit, function plot, data manipulation, ternary plot, conversion table, dictionary, and advanced calculators for molecules, thermochemistry, electrochemistry, weak acid/base/buffers, solubility (Ksp), gas equations, spectroscopy and stoichiometry (balance).
Chemistry lessons and problems are included. Both english and norwegian versions are available.

ChemCraft is a Windows-based graphical program for working with quantum chemistry computations.
It is a convenient tool for visualization of computed results and preparing new jobs for the calculation.
ChemCraft is mainly developed as a graphical user interface for Gamess (US version) and Gaussian program packages. For working with other formats of calculations, the possibility to import/export coordinates of atoms in text format can be easily used.
ChemCraft does not perform its own calculations, but can significantly facilitate the use of widespread quantum chemistry packages.
The program combines advanced graphical user interface and wholesome features designed for practical use.
ChemCraft provides very detailed structured visualization of output files, based on dividing a file into separate elements and presenting them in hierarchical multi-level list; this feature will allow one to easily analyze complicated files, such as IRC jobs, scan jobs, or multi-job calculations.
The graphical engine of ChemCraft does not require any hardware acceleration.
Main features:
- Rendering 3-dimensional pictures of molecules by atomic coordinates with the possibility to examine or modify any geometrical parameter in the molecule (distance, angle);
- Visualization of Gamess or Gaussian output files: representation of individual geometries from the file (optimized structure, geometry at each optimization step, etc), animation of vibrational modes, graphical representation of gradient (forces on nucleus), visualization of molecular orbitals in the form of isosurfaces or colored planes, visualization of vibrational or electronic (e.g. TDDFT) spectra, possibility to show SCF convergence graph, and some other features;
- Different tools for constructing molecules and modifying molecular geometry: using standard molecular fragments, "dragging" atoms or fragments on the molecules image, utility for setting a point group, and other possibilities;
- Producing publication-ready images of molecules in customizable display modes, containing required designations (labels, lines, etc);
- Some additional utilities for preparing input files: visual construction of Z-matrixes, automatic generation of input files with non-standard basis sets, converting MOs read from an output file into the format of input file.
Version restrictions:
- 90 days trial