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Inclusion of Cavitands and Calix[4]arenes into a Metallobridged para ‐(1 H ‐Imidazo[4,5‐f][3,8]phenanthrolin‐2‐yl)‐Expanded Calix[4]arene
Author(s) -
Botana Enrique,
Da Silva Eric,
BenetBuchholz Jordi,
Ballester Pablo,
de Mendoza Javier
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200603180
Subject(s) - calixarene , rhenium , chemistry , inclusion (mineral) , stereochemistry , combinatorial chemistry , molecule , organic chemistry , mineralogy
A hunter hunted! A highly preorganized, deep metallocavitand of nanoscale dimensions containing rhenium atoms at the four corners can be readily synthesized from a simple formyl‐substituted calix[4]arene and 3,8‐phenanthroquinone. Unsubstituted calix[4]arenes and cavitands without substituents on the lower rim are the ideal guests for such an expanded calixarene (see picture), and are included with binding constants of 10 3 –10 5 M −1 .