Crystal structure of diamond

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Diamond (Diamond) is an atomic crystal with a cubic crystal system composed of carbon (C) elements, and its structure is one of the hardest natural materials in nature. Crystal system cubic crystal system (equiaxed crystal system) space group Fd3m (face centered cubic structure) unit cell parameter a ≈ 3.57 Å (unit cell edge length) The number of atoms in each unit cell is 8 carbon atoms, and each carbon atom is connected to another 4 carbon atoms through covalent bonds to form a tetrahedral configuration. All carbon atoms are located in the apex and face-centered positions of the cubic unit cell, as well as the four inner positions (alternating distribution).

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