WebMO Molecule Editor vs 3D Molecules View&Edit Lite

WebMO allows users to build and view molecules in 3-D, visualize orbitals and symmetry elements, lookup chemical information and properties from external databases, and access state-of-the-art computational chemistry programs. WebMO is recommended for students and faculty in high school, college, and graduate school who desire mobile access to molecular structures, information, and calculations. WebMO capabilities include: - Build molecules by drawing atoms and bonds in a 3-D molecular editor, or by speaking the name (e.g., “aspirin”) - Optimize structures using VSEPR theory or molecular mechanics - View Huckel molecular orbitals, electron density, and electrostatic potential - View molecular vibrations - View point group and symmetry elements of molecules - Lookup basic molecular information, including IUPAC and common names, stoichiometry, molar mass - Lookup chemical data from PubChem and ChemSpider - Lookup experimental and predicted molecular properties from external databases (NIST, Sigma-Aldrich) - Lookup IR, UV-VIS, NMR, and mass spectra from external databases (NIST, SDBS) - Capture high-resolution molecular images - Save and recall molecular structures locally - Export and import structures via email WebMO is also a front-end to WebMO servers (version 14 and higher): - Supports Gaussian, GAMESS, Molpro, MOPAC, NWChem, ORCA, PQS, PSI, Quantum Espresso, VASP, Q-Chem, and Tinker computational chemistry programs - Submit, monitor, and view calculations - View formatted tabular data extracted from output files, as well as raw output - Visualize geometry, partial charges, dipole moment, normal vibrational modes, molecular orbitals, and NMR/IR/UV-VIS spectra

"3D Molecules View&Edit Lite": is a free 3D molecule builder and viewer. for students, educators, and researchers. "3D Molecules View&Edit Lite" allows users to open and view molecules in SDF format files, for example, from NCBI's PubChem (http://pubchem.ncbi.nlm.nih.gov), a public database of compounds or from RCSB Protein Data Bank (http://www.rcsb.org/pdb). FEATURES: • Building molecule model • Support of single, double and triple bonds. • Visualization of Wireframe style, Stick style, Ball and Stick, Spacefill (CPK) models. • T-shaped and «seesaw» molecular geometries. • Bond-angle optimization • Loading molecule in SDF file format • Loading molecule in PDB file format. • Availability of information about chemical element symbols in the molecule • Opening the molecule file directly from email attachments. • “Test yourself” mode to build some inorganic chemical compounds. The app includes tutorial how to create and delete models. The free version is a limited version of "3D Molecules Edit & Test"