ISSN:
1600-5759
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
The [2.2]paracyclophane groups of the title compounds, chiral and meso-bis(tricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaen-5-yl)methane (the former as a racemate), C33H32, and meso-bis(tricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaen-5-yl) sulfide, C32H30S, show the characteristic structural features of the parent compound [2.2]paracyclophane and the related compound dimethylbis([2.2]paracyclophan-4-yl)silane, C34H36Si: the aromatic rings are puckered, resulting in a boat conformation. The planes of the four coplanar C atoms are slightly twisted with respect to each other. The Csp3—Csp3 bond lengths of the ethylene bridges are elongated by the electronic and steric effects of the skeleton.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108270199014560
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