extisp.icio.us images displays a random Yahoo images search result for each of a user's tag words (excluding those which they've only ever used once). extisp.icio.us text gives you a random textual scattering of a user's tags, sized according to the numbe
This is anopen source scienceproject in chemistry led by the Bradley Laboratory at Drexel University.Since all laboratory experimental results are made public, we refer to this work asOpen Notebook Scienceas well.Click on theRecent Changesbutton on the
CAS numbers need to be validated for the ~4000 chemical pages. Since the only authoritative source is the American Chemical Society, SciFinder looks like the best bet. For various reasons (see previous IRC discussions), it is not practical for one editor to validate them all.
NWChem is an electronic structure package that features MC-SCF, MPn, CC, CI, and DFT methods. Properties, solvation models, QM/MM, and MD simulations are also possible.
The Computational Chemistry Comparison and Benchmark Database (CCCBDB) contains links to experimental and computational thermochemical data for a selected set of gas-phase atoms and molecules as well as tools for comparing experimental and computational ideal-gas thermochemical properties.
PyQuante is an open-source suite of programs for developing quantum chemistry methods. The program is written in the Python programming language, but has many "rate-determining" modules also written in C for speed.
GAMESS-US is a full-featured electronic structure software package with MC-SCF, CC, DFT, and CI wave functions. QM/MM, FMO, solvation, and MD calculations are also possible.
COLUMBUS is a collection of programs for high-level ab initio molecular electronic structure calculations. The programs are designed primarily for extended multi-reference (MR) calculations on electronic ground and excited states of atoms and molecules.
MOPAC (Molecular Orbital PACkage) is a semiempirical quantum chemistry program based on Dewar and Thiel's NDDO approximation. Available at this site are the open source version (OpenMOPAC) and information on the commerical version.
T. Bohlen, C. Müller, and B. Milkereit. Hardrock Seismic Exploration, volume 10 of Geophysical Developments Series, chapter 131E\_ch5, Society of Exploration Geophysicists, 8801 South Yale Suite 500 Tulsa OK 74137 USA, (Jan 1, 2003)