13. Liquids, Solids & Intermolecular Forces
Face Centered Cubic Unit Cell
Greenockite (CdS) has a wurtzite structure with cell parameters: a = b = 4.136 Å, c = 6.713 Å. Another compound, cadmoselite (CdSe), also has wurtzite structure with cell parameters: a = b = 4.271 Å, c = 6.969 Å. Why does cadmoselite have larger cell parameters than greenockite?