The crystal structure of sodium chloride, NaCl
Wikipedia: Sodium chloride, Halite
Housecroft: pp. 165–167
Smart & Moore: pp. 30–33
Greenwood & Earnshaw: pp. 79–83
The sodium chloride structure is also known as the NaCl, halite or rocksalt structure. One way to understand it is to consider it as a cubic close packed array of anions, with all the octahedral interstices filled by cations.
Every anion is surrounded by six cations and has octahedral coordination geometry. Likewise, every cation is octahedrally coordinated by six anions.
Many compounds adopt the NaCl structure, most notably MgO, CaO, FeO, AgCl, AgBr and all the halides of Li, Na and K.
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