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“Head‐to‐Tail” Linkage in Double Calix[4]arenes
Author(s) -
Wa̧sikiewicz Wojciech,
Rokicki Gabriel,
Kiełkiewicz Jȩdrzej,
Böhmer Volker
Publication year - 1994
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.199402141
Subject(s) - head (geology) , linkage (software) , stack (abstract data type) , dipole , orientation (vector space) , calixarene , double bond , chemistry , crystallography , stereochemistry , polymer chemistry , mathematics , computer science , molecule , organic chemistry , geometry , biology , biochemistry , gene , programming language , paleontology
The two linked units have the same orientation in the double calix[4]arene 1 ; thus, for example, their dipole moments do not cancel. Until now the only compounds known of this type were linked “head‐to‐head” or tail‐to‐tail. Compound 1 can, in principle, stack and can therefore be considered as the first oligocalix[4]arene.