CRYSTAL-STRUCTURE OF MESO-4,4'-DI[2.2]PARACYCLOPHANE

Authors
JONES PG KUS P
Citation
Pg. Jones et P. Kus, CRYSTAL-STRUCTURE OF MESO-4,4'-DI[2.2]PARACYCLOPHANE, Polish Journal of Chemistry, 72(6), 1998, pp. 1106-1111
Citations number
17
Categorie Soggetti
Chemistry
Journal title
Polish Journal of Chemistry → ACNP
ISSN journal
01375083
Volume
72
Issue
6
Year of publication
1998
Pages
1106 - 1111
Database
ISI
SICI code
0137-5083(1998)72:6<1106:COM>2.0.ZU;2-F
Abstract
Of the two possible racemates formed on the dimerization of [2.2]parac yclophane, the title compound C32H30 is the meso (RS/SR) isomer. It cr ystallizes in monoclinic system in space group P2(1)/n with Z = 4 and unit cell dimensions: a = 13.7612(12), b = 11.2530(10), c = 14.6974(12 ) Angstrom, beta = 99.668(8)degrees (at -100 degrees C). The conformat ion is described by the interplanar angle between the linked rings, 48 .67(8)degrees. Some widened angles in the region of C4-C4' may indicat e steric congestion.