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Die Strukturen der mittleren Ringverbindungen. XIV. Struktur des Silbernitrat‐ trans ‐Cyclodecen‐Addukts
Author(s) -
Ganis Paolo,
Dunitz J. D.
Publication year - 1967
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19670500824
Subject(s) - chemistry , orthorhombic crystal system , planarity testing , crystallography , molecule , adduct , double bond , stereochemistry , crystal structure , polymer chemistry , organic chemistry
Crystals of the AgNO 3 ‐ trans ‐cyclodecene adduct are orthorhombic, a = 5,47, b = 14,69, c = 26,73 Å, space group Pbcn , with 4 formula units AgNO 3 ·(C 10 H 18 ) 2 in the unit cell. The structure has been solved by the heavy‐atom method and refined by full‐matrix least‐squares analysis of three‐dimensional intensity data. The conformation of the trans ‐cyclodecene molecule has features in common with that of the cyclodecane ring, but the trans double bond is twisted about 40° from planarity. This deformation must contribute substantially to the strain‐energy of trans ‐cyclodecene. The dependence of the twist‐energy on the twist‐angle is discussed.