Gw. Buchanan et al., STEREOCHEMISTRY OF MACROCYCLIC-COMPOUNDS CAPABLE OF CATENATION - X-RAY CRYSTAL-STRUCTURE OF BIS(P-PHENYLENE)-31-CROWN-9 ETHER, Journal of molecular structure, 382(1), 1996, pp. 69-73
The X-ray crystal structure of the title material has been determined.
The molecule possesses one O-C-C-O unit with an unusual trans geometr
y. The mean interplanar separation between the aromatic rings is 4.93
Angstrom and the interplanar angle is 90.40(20)degrees. The structure
is compared with that found for related systems capable of catenation.