Clathrate I crystal structure

Only the oxygen atoms are shown. This is the gas hydrate-I structure containing two dodecahedral (5¹²) and six tetrakaidecahedral (5¹²6²) cavities per cubic unit cell.

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8 (2 x 2 x 2) unit cells

Twelve tetrakaidecahedral cavities surrounding one dodecahedral cavity (connected by orange bonds).

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