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Problems with the Unit Cell

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I am having trouble drawing the unit cell and labelling the symmetry elements.

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https://brainmass.com/chemistry/inorganic-chemistry/problems-unit-cell-13725

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Solution Summary

This solution provides a detailed description of the labelling process for a repeating unit 2D sheet. The explanation involves drawing unit sheets and labelling of rotational/mirror/inversion symmetry elements.

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(see the attached file for more information)

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