Výsledky vyhledávání - "K. J. Andries"

(4;2)-connected three-dimensional nets related to the mixed-coordinated framework structures AlPO4-15, AlPO4-CJ2 and AlPO4-12

Autor: Joseph V. Smith, K. J. Andries

Publikováno v: Acta Crystallographica Section A Foundations of Crystallography. 50:317-325

Application of the same pattern for linking neighbouring 4.82 two-dimensional nets as is found in the AlPO4-CJ2 and AlPO4-15 structures allows the enumeration of eleven (4;2)-connected three-dimensional nets with a maximum unit-cell repeat of ~ 10 A.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab7a043deaae1b14dd1b4948e3bcd9e8
https://doi.org/10.1107/s0108767393010372

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Opening, stellation and handle replacement of edges of the cube, tetrahedron and hexagonal prism: application to 3-connected three-dimensional polyhedra and (2, 3)-connected polyhedral units in three-dimensional nets

Autor: K. J Andries, Joseph V. Smith

Publikováno v: Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences. 444:217-238

Opening, stellation or handle replacement of edges of the regular cube, the regular tetrahedron and the semi-regular hexagonal prism (minimum point group symmetry 2/m) yields totals of 144, 11 and 205 geometrically distinct configurations respectivel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46c4001cf0d060d5d1baec4e59afcc61
https://doi.org/10.1098/rspa.1994.0013

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Framework structures derived from a novel type of trigonal secondary building unit with on-axis T atoms: the tridymite group

Autor: K. J. Andries, H. J. Bosmans

Publikováno v: Acta Crystallographica Section A Foundations of Crystallography. 46:832-847

An infinite series of secondary building units generated around a trigonal axis, with the top and/or bottom T atom coinciding with the symmetry axis allows the systematic enumeration of a novel class of (4; 2)-connected 3D framework structures. Known

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc9694754a8eac4008d19e1a3986a8b7
https://doi.org/10.1107/s0108767390005591

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Towards a general description of hexagonal three-dimensional framework structures: the lateral connection of trigonal columns (LCTC) group

Autor: K. J. Andries

Publikováno v: Acta Crystallographica Section A Foundations of Crystallography. 46:855-868

Hexagonal three-dimensional framework structures are constructed from trigonal columns. When two types of trigonal column are distinguished, all hexagonal 3D framework structures known to date can be classified in the lateral connection of trigonal c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bee7ca08dff55fdd9b0a9ce64430f5af
https://doi.org/10.1107/s010876739000561x

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The systematic enumeration of (4;2)-connected 3D nets related to the tridymite group

Autor: K. J. Andries, H. J. Bosmans

Publikováno v: Acta Crystallographica Section A Foundations of Crystallography. 46:847-855

Forty-two hypothetical 3D nets are derived by applying four types of transformations (or combinations thereof) to the previously described tridymite group of structures. Two novel transformations are proposed, one preserving the (hexagonal or orthorh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::166ca7b2df5fb303af0486ca6ba980eb
https://doi.org/10.1107/s0108767390005608

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