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Covalently Linked Dimers of Clusters: Loop‐ and Dumbbell‐Shaped Mn 24 and Mn 26 Single‐Molecule Magnets
Author(s) -
Stamatatos Theocharis C.,
Abboud Khalil A.,
Wernsdorfer Wolfgang,
Christou George
Publication year - 2008
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.200801393
Subject(s) - dumbbell , covalent bond , magnet , crystallography , molecule , azide , molecular magnets , magnetization , loop (graph theory) , chemistry , materials science , physics , magnetic field , mathematics , quantum mechanics , combinatorics , medicine , organic chemistry , physical therapy
Double impact : The use of both azide and di‐2‐pyridylketone‐derived ligands has provided new Mn 24 (left) and Mn 26 complexes (right) with loop and dumbbell structures that are made up of two covalently linked Mn 12 and Mn 13 units, respectively. Both complexes are single‐molecule magnets, and the Mn 26 complex displays the largest barrier for magnetization reversal in a Mn II/III complex known to date. Mn II yellow, Mn III blue, O red, N green, C gray.