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Crystal structures of a solvated and unsolvated sulfone cyclic oligomer
Author(s) -
Kaduk J. A.,
Cahill P. J.,
Venkateshwaran L. N.
Publication year - 1999
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889898006189
Subject(s) - crystallography , monoclinic crystal system , dimer , crystal structure , sulfone , x ray crystallography , chemistry , stereochemistry , physics , diffraction , polymer chemistry , organic chemistry , optics
The structure of the DMSO (dimethyl sulfoxide) solvate of the macrocyclic [22] dimer, 17,17,37,37‐tetramethyl‐2,12,22,32‐tetraoxa‐7,27‐dithianonacyclo[36.2.2.2.‐2.2.2.2.2.2]hexapentaconta‐3,5,8,‐10,13,15,18,20,23,25,28,30,33,35,38,40,41,43,45,47,49,51,53,55‐tetracosaene 7,7,27,27‐tetraoxide, formed from ‐dichlorodiphenyl sulfone and bisphenol‐A has been determined by single‐crystal techniques and the structure of the unsolvated dimer refined using X‐ray powder diffraction data. The molecular conformations are similar and phenyl–phenyl stacking interactions are apparently important in determining the molecular conformation in the solid state. . (1) cyclo ‐[.: molecular weight 963.2, monoclinic, (2), (3), (2) Å, , (7) Å. (2), cyclo ‐[(: molecular weight 885.06, monoclinic, , (15), (18), (12) Å, , (5) Å.