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.
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Ganis et al. (1967) studied this question.
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