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Über Alkaloide aus Laurelia novae-zelandiae A. CUNN. 5. Mitteilung über natürliche und synthetische Isochinolinderivate

✍ Scribed by Karl Bernauer

Publisher: John Wiley and Sons
Year: 1967
Tongue: German
Weight: 377 KB
Volume: 50
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.19670500617

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✦ Synopsis

1583

The results of the X-ray analysis of 1,1,5,5-tetramethylcyclodecane-8-carboxylic acid do not correspond to a reasonable molecular structure. When used as a startingpoint for a strain-energy minimization calculation based on semi-empirical potential functions, they lead to two new contormations for the cyclodecane ring. It is shown that the X-ray results can be explained by assuming that the crystal consists of a random mixture of these two conformations.

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