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Crown Ether Complexes of Sulfonium Salts—The X‐Ray Crystal Structures of [PhCOCH 2 SMe 2 ·[18]Crown‐6] n [PF 6 ] n and [(PhCOCHPhSMe 2 ) 2 ·[18]Crown‐6][PF 6 ] 2
Author(s) -
Allwood Billy L.,
Crosby John,
Pears David A.,
Stoddart J. Fraser,
Williams David J.
Publication year - 1984
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198409771
Subject(s) - sulfonium , dication , crown ether , chemistry , crystallography , methylene , ion , 15 crown 5 , crystal structure , x ray , crystallization , ether , inorganic chemistry , medicinal chemistry , organic chemistry , salt (chemistry) , physics , optics
The transformation of polymeric into discrete host‐guest complexes takes place on replacement of a methylene H‐atom in the sulfonium ion of the [18]‐crown‐6 (18C6) complex 1 by a bulky group such as phenyl. The dication of 2 exhibits a sort of sandwich structure (sulfonium ion‐crown ether‐sulfonium ion); the bonding between guest cations on the one hand and crown ethers on the other derives from different H‐bridges; a peculiarity is the formation of the “bifurcated” H‐bridges.