Abstract
The space group of a periodic cylinder packing structure is reported. Congruent cylinders of infinite length are packed parallel to the six cubic 〈110〉 directions. The structure belongs not to the cubic system but to the tetragonal system. Although the parallel cylinders form the same rhombic lattice along each of the six directions, the packing structure as a whole is heterogeneous: cylinders along two of the directions occupy one Wyckoff position, and cylinders along the remaining four directions occupy the other Wyckoff position. Their combined structure belongs to the space group I4122, which provides two enantiomorphic structures.
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Teshima, Y., Matsumoto, T. Space group of heterogeneous cylinder packing with six 〈110〉 directions. Glass Phys Chem 38, 41–48 (2012). https://doi.org/10.1134/S1087659612010142
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DOI: https://doi.org/10.1134/S1087659612010142