These pages illustrate the 3D structures of inorganic materials
in the ILL's ICSD-for-WWW
database; they were produced by Marcus Hewat's 3D VRML structure drawing
application xtal-3d, written during 1994
summer student work experience. The database is used by scientists at the European
High Flux Reactor,
Synchrotron
and elsewhere for studying the atomic structure of materials. The latest
version of these pages is found at the ILL's
3D structure gallery.
In general you will obtain a large picture of the structure if you click on the small picture. You will obtain a 3D VRML model by clicking on ¶-flagged links such as this one for the famous ¶C60 Buckey balls.
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| Why is Atomic Structure Important ? |
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| How do Atoms Pack Together ? |
| CCP, FCC, Gold, HCP, Silver, BCC, Chromium. | |
|
| How do Different Sized Atoms Pack ? |
| Octahedral & Tetrahedral holes, Coordination Polyhedrae, NaCl Rock salt, ZnS Zinc-blende, ZnO Wurtzite, CaF2 Flourite, TiO2 Rutile, Si Diamond, SiO2 Cristabolite. | |
|
| What is a Structural Transition ? |
| BaTiO3 Perovskite, Ferro-electrics, NaNbO3, Anti-ferroelectrics. | |
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| What about Chemical Bonding ? |
| Diamond, Graphite, C60 Fullerenes, Nano-tubes | |
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| How can we Use Structure ? |
| Silicate nets, Zeolite-A, Zeolite Frame-work, Molecular Sieves, Catalysts. | |
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| What of other mineral structures ? |
| Quartz (Amethyst, Agate, Opal), Feldspars (Moonstone), Beryl (Aquamarine, Emerald), Chrysoberyl (Cat's Eye), Garnet, Jadeite, Olivine, Pyrite, Marcasite, Corundum (Ruby, Sapphire), Zircon, Topaz, Spinel (Loadstone). | |
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| What is Solid State Chemistry ? |
| Mixed Valence, Oxidation-Reduction, Charge Transfer, YBCO, Oxide Superconductors, Perovskites. | |
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| What is Solid State Physics ? |
| Ferro-magnets, Iron Fe, Anti-ferromagnets, MnO spin structure, Fe3O4 magnetite, complex magnetic structures Er6Mn23, hard magnets Nd2Fe14B, GMR Giant Maneto-Resistance (La,Ca)MnO3. |
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