Basic Principles
Key concepts include:
- Unit cell parameters
- Symmetry operations
- Bravais lattices
- Point groups
- Space groups
Precise Crystallographic Analysis
ChemistryCalculatorHub.info
Identify crystal system from lattice parameters.
Calculate symmetry elements and point groups.
Calculate plane spacing and angles.
Key concepts include:
Classification:
Common uses:
Additional topics:
V = abc(1-cos²α-cos²β-cos²γ+2cosαcosβcosγ)½
d = a/√(h²+k²+l²) [cubic]
cos φ = hh'+kk'+ll'/√[(h²+k²+l²)(h'²+k'²+l'²)]
Rotation: Cn
Reflection: m
Inversion: i
gᵢⱼ = aᵢ·aⱼ
|g| = V²
d* = 2π/d