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Molecular and Supramolecular Homochirality: Enantiopure Perfluorocarbon Rotamers and Halogen‐Bonded Fluorous Double Helices
Author(s) -
Casnati Alessandro,
Liantonio Rosalba,
Metrangolo Pierangelo,
Resnati Giuseppe,
Ungaro Rocco,
Ugozzoli Franco
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.200504459
Subject(s) - supramolecular chemistry , enantiopure drug , chemistry , conformational isomerism , homochirality , crystallography , halogen , stereochemistry , helix (gastropod) , molecule , crystal structure , enantiomer , enantioselective synthesis , organic chemistry , catalysis , alkyl , ecology , snail , biology
Beauty is in the I of the beholder : Metal‐ion coordination and I⋅⋅⋅I halogen bonding direct the self‐assembly of achiral starting materials (a calix[4]arene tetraamide, BaI 2 ⋅2 H 2 O, and 1,8‐diiodoperfluorooctane) into a homochiral supramolecular complex containing double helices (see structure; Ba light purple, I purple, F green, O red, N blue, C gray; one double helix in red and yellow).