WebMO Molecule Editor vs Crystal Lattice

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

The iOS app "Crystal Lattice" contains basic knowledge (university entrance exam level) of crystal lattices. When learning about crystal lattices, you may find it difficult to understand the 3D structure, and this app will come in handy at such times. The iOS app "Crystal Lattice" allows you to scale and rotate the 3D displayed crystal lattice. Promote 3D understanding by looking at things from various angles. For metal crystals and covalent crystals, this app explains how to calculate the coordination number, number of atoms in the lattice, atomic radius, and atomic packing factor. For ionic crystals, this app explains how to calculate the coordination number, number of ions in the lattice, ionic radius, and limiting radius ratio. Regarding metal crystals, this app explains body-centered cubic lattice, face-centered cubic lattice, and hexagonal close-packed structure. Regarding ionic crystals, this app explains NaCl type, CsCl type, ZnS (zincblende) type, and CaF2 (fluorite) type. Regarding covalent crystals, this app explains Diamond type. [details] https://app.brain-workout.org/crystallattice-e/