Crystal structures of famous compounds

Lattice number Space group Name Compounds view
Monoclinic(1-2) 1
Triclinic(3-15) 12
14
Orthorhombic(16-74) 58 ,
61 ,
Tetragonal(75-142) 139
Trigonal(143-167) ?
Hexagonal(168-194) 186 Wurtzite
191 HEX
194 HCP
Cubic(195-230) 216 Zinblende
220
221 PC
225 FCC
227 Diamond
229 BCC

Structure factors

Common structure factors

Simple Cubic

  • space group 221

Face centred

Body centred

Diamond

  • diamond space group 227
  • zincblende space group 216 Diamond structure factor :

Hexagonal close pack

  • HCP : graphite flat 194
  • wurtzite : graphite buckled 186

interactive unit cell HCP structure factor

Hexagonal 2D

Graphene structure factor

Famous Compounds

Carbon

  • Carbon allotropic forms
    • Graphite : Pure carbon forming naturally at SPT
    • Diamond : Pure carbon forming under high pressure Gibbs energy formation 0.029eV (12GPa)
    • graphene,fullerene : Artificial layered arrangement
  • Coal : Carbon as extracted, mixed with other compounds
  • Charcoal : Form of ashes(result of incomplete combustion) of carbon specifically produced from burned wooden logs used as an easy combustible.

Silicate

many forms