Topological Crystal Chemistry: Theory and Practice

The three schematized hetero-interpenetrating nets (2-fold dia+ nbo) in the A₃B₃O₁₁ family (left): decoration of the nodes with the moieties shown in the middle leads to the network of La₃Ru₃O₁₁ (ICSD number 100517) (right).
Source: Interpenetrating metal-organic and inorganic 3D networks: a computer aided systematic investigation. Part II. Analysis of the Inorganic Crystal Structure Database (ICSD). Baburin, I. A.; Blatov, V. A.; Carlucci, L.; Ciani, G.; Proserpio, D. M. Journal of Solid State Chemistry 178 (2005) 2452-2474.

The modern nomenclature for nets adopts the 3-letter code (as "dia","ths", "pcu","pts" in bold font) proposed by Mike O'Keeffe as code-name for nets (similar to zeolites names), in order to identify uniquely topologies and avoid/minimize errors. See http://rcsr.anu.edu.au/definitions/symbol, The Reticular Chemistry Structure Resource (RCSR) Database of, and Symbols for, Crystal Nets, O'Keeffe, M.; Peskov, M/ A.; Ramsden, S. J.; Yaghi, O. M. Accts. Chem. Res. 2008, 41, 1782-1789. and Vertex-, face-, point-, Schlafli-, and Delaney-symbols in nets, polyhedra and tilings: recommended terminology, V. A. Blatov, M. O'Keeffe and D. M. Proserpio CrystEngComm, 2009, DOI: 10.1039/B910671E

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