Free space crystallography and the volume term of Gibbs energy in heptagon patterns

Gaps or free space are studied in heptagon patterns. Geometrical features of 2‐D nets are investigated. The volume terms of Gibbs energy in corresponding 3‐D lattices is estimated. The importance of the research of gaps and space filling is confirmed by the study of the FSCSC (free space crystallogr...

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Veröffentlicht in:	Crystal research and technology (1979) 1994, Vol.29 (3), p.363-368
Hauptverfasser:	Leuschner, D., Leuschner, Chr, Leuschner, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Crystalline state (including molecular motions in solids) Exact sciences and technology Physics Structure of solids and liquids crystallography Theory of crystal structure, crystal symmetry calculations and modeling
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Beschreibung
Zusammenfassung:	Gaps or free space are studied in heptagon patterns. Geometrical features of 2‐D nets are investigated. The volume terms of Gibbs energy in corresponding 3‐D lattices is estimated. The importance of the research of gaps and space filling is confirmed by the study of the FSCSC (free space crystallography of strange crystals) row of three heptagon patterns with the interesting number (per unit cell) sequences (heptagons: 4, 6, 8; gaps: 2, 3, 4) represented here.
ISSN:	0232-1300 1521-4079
DOI:	10.1002/crat.2170290314