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Magnetic Interactions as Supramolecular Function: Structure and Magnetic Properties of Hydrogen‐Bridged Dinuclear Copper( II ) Complexes
Author(s) -
Plass Winfried,
Pohlmann Axel,
Rautengarten Jens
Publication year - 2001
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 - 10.1002/1521-3773(20011119)40:22<4207::aid-anie4207>3.0.co;2-w
Subject(s) - chemistry , copper , supramolecular chemistry , hydrogen bond , ligand (biochemistry) , crystallography , amine gas treating , proton , hydrogen , stereochemistry , polymer chemistry , molecule , crystal structure , organic chemistry , receptor , biochemistry , physics , quantum mechanics
The self‐complementary coordination unit [Cu(H 2 sabhea)] + with a pentadentate amino alcohol as ligand enables the synthesis of the first triply hydrogen‐bridged dinuclear copper( II ) complex (see picture). Proton transfer allows the reversible transformation between this triply and the corresponding doubly hydrogen‐bridged form. Despite the very short hydrogen bond found for the triply bridged complex, its exchange coupling constant is much smaller than that for the doubly bridged complex. H 3 sabhea= N ‐salicylidene‐2‐(bis(2‐hydroxyethyl)amino)ethyl amine.