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Figure 18
Heat maps of two-dimensional lattices derived from crystal structures in the CSD in the quotient square QS. Each pixel in the map represents a 0.005 × 0.005 interval of projected form invariant value, where each such value uniquely represents a lattice up to rigid motion only. Top: N = 2 611 887 lattices derived from the CSD. Projected invariants for primitive and centred rectangular lattices are duplicated at the boundaries of the quotient square – indicative positions of non-trivially symmetric lattices are shown. Bottom: all N = 1 165 348 oblique (non-mirror-symmetric) lattices derived from the CSD.

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ISSN: 2053-2733
Volume 79| Part 1| January 2023| Pages 1-13
https://doi.org/10.1107/S2053273322010075
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