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A Metal‐Based Trisimidazolium Cage That Provides Six CH Hydrogen‐Bond‐Donor Fragments and Includes Anions
Author(s) -
Amendola Valeria,
Boiocchi Massimo,
Colasson Benoît,
Fabbrizzi Luigi,
Rodriguez Douton MariaJesús,
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.200602598
Subject(s) - hydrogen bond , chemistry , halide , crystallography , metal , cage , ion , stereochemistry , molecule , inorganic chemistry , organic chemistry , combinatorics , mathematics
Sheltering under the roof : A trisimidazolium cage is capped with a {Fe II (bpy) 3 } 2+ subunit to produce a receptor that can bind small anions (bpy=2,2′‐bipyridine). Rodlike “pseudohalide” (N 3 − , NCO − , and NCS − ) and spherical halide (Cl − , Br − , and I − ) anions accept hydrogen bonds from CH fragments in the receptor cavity. The N 3 − ion forms the most stable inclusion compound (see structure; Fe red, C light blue, H white, N dark blue).