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Free space crystallography and the volume term of Gibbs energy in heptagon patterns
Author(s) -
Leuschner D.,
Leuschner Chr.,
Leuschner C.
Publication year - 1994
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170290314
Subject(s) - space (punctuation) , volume (thermodynamics) , gibbs free energy , term (time) , crystallography , unit (ring theory) , combinatorics , physics , chemistry , mathematics , thermodynamics , computer science , quantum mechanics , mathematics education , operating system
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.