User:Benjah-bmm27/degree/3/CAR
Appearance
Isolobal relationships, CAR
[edit]- Cluster chemistry
- Wade's rules: boranes, carboranes, metalloboranes
- Interstitial atoms in clusters
- Isolobal principle
- Metal-metal multiple bonds: quadruple bonds, quintuple bonds, sextuple bonds, delta bonds
Deltahedra to learn
[edit]Deltahedra: polyhedra whose faces are all equilateral triangles. Geomag toys can be very useful for visualising and understanding deltahedra. There's also a corresponding Jmol page with real examples of the deltahedra and their derivatives.
Number of vertices | CAR name | Wikipedia article | MathWorld article | Number of faces |
---|---|---|---|---|
n = 4 | tetrahedron | Tetrahedron | Tetrahedron | 4 |
n = 5 | trigonal bipyramid | Trigonal bipyramid | Triangular Dipyramid | 6 |
n = 6 | octahedron | Octahedron | Octahedron | 8 |
n = 7 | pentagonal bipyramid | Pentagonal bipyramid | Pentagonal Dipyramid | 10 |
n = 8 | triangular dodecahedron | Snub disphenoid | Snub Disphenoid | 12 |
n = 9 | tricapped trigonal prism | Triaugmented triangular prism | Triaugmented Triangular Prism | 14 |
n = 10 | bicapped square antiprism | Gyroelongated square dipyramid | Gyroelongated Square Dipyramid | 16 |
n = 11 | octadecahedron | Octadecahedron | Deltahedron: not convex | 18 |
n = 12 | icosahedron | Icosahedron | Icosahedron | 20 |