Die kristallstruktur von cycloalkanen
1982; Wiley; Volume: 183; Issue: 3 Linguagem: Inglês
10.1002/macp.1982.021830322
ISSN0025-116X
AutoresT. Trzebiatowski, Martin Dräger, G. Strobl,
Tópico(s)Thermal and Kinetic Analysis
ResumoAbstract An X‐ray structure analysis was performed on single crystals of the cycloalkane (CH 2)36 . The lattice belongs to the space group Aa and is arranged in layers. The unit cell has the dimensions α = 1,033 nm, b = 0,824 nm, c = 4,22 nm, β = 107, 1° and contains four molecules. The molecules consist of two stretched stems which are linked by sharp folds at each end. The folds have the conformation …t(g g t g g) t… lying parallel to the b ‐axis. Raman measurements suggest that the stems are slightly twisted. A comparison of the homologous series (CH 2) n , n = 36, 48, 60, and 72 using X‐ray powder methods showed that the (CH 2)36 ‐structure, including the fold conformation, is also representative for the longer chain cycloalkanes.
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