The Magnetic Möbius Strip: Synthesis, Structure, and Magnetic Studies of Odd-Numbered Antiferromagnetically Coupled Wheels†
Olivier Cador Dr.
Laboratorio di Magnetismo Molecolare, Dipartimento di Chimica & INSTM, Università degli Studi di Firenze, Polo Scientifico Universitario, Via Lastruccia n. 3, 50019 Sesto Fiorentino, Italy, Fax: (+39) 055-4573372
Search for more papers by this authorDante Gatteschi Prof.
Laboratorio di Magnetismo Molecolare, Dipartimento di Chimica & INSTM, Università degli Studi di Firenze, Polo Scientifico Universitario, Via Lastruccia n. 3, 50019 Sesto Fiorentino, Italy, Fax: (+39) 055-4573372
Search for more papers by this authorRoberta Sessoli Prof.
Laboratorio di Magnetismo Molecolare, Dipartimento di Chimica & INSTM, Università degli Studi di Firenze, Polo Scientifico Universitario, Via Lastruccia n. 3, 50019 Sesto Fiorentino, Italy, Fax: (+39) 055-4573372
Search for more papers by this authorFinn K. Larsen Prof.
Department of Chemistry, University of Aarhus, Aarhus, Denmark
Search for more papers by this authorJacob Overgaard Dr.
Department of Chemistry, University of Aarhus, Aarhus, Denmark
Search for more papers by this authorAnne-Laure Barra Dr.
Laboratoire des Champs Magnetiques Intenses-CNRS, 38042 Grenoble Cedex 9, France
Search for more papers by this authorSimon J. Teat Dr.
CCLRC Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, UK
Search for more papers by this authorGrigore A. Timco Dr.
Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK, Fax: (+44) 161-275-4616
Search for more papers by this authorRichard E. P. Winpenny Prof.
Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK, Fax: (+44) 161-275-4616
Search for more papers by this authorOlivier Cador Dr.
Laboratorio di Magnetismo Molecolare, Dipartimento di Chimica & INSTM, Università degli Studi di Firenze, Polo Scientifico Universitario, Via Lastruccia n. 3, 50019 Sesto Fiorentino, Italy, Fax: (+39) 055-4573372
Search for more papers by this authorDante Gatteschi Prof.
Laboratorio di Magnetismo Molecolare, Dipartimento di Chimica & INSTM, Università degli Studi di Firenze, Polo Scientifico Universitario, Via Lastruccia n. 3, 50019 Sesto Fiorentino, Italy, Fax: (+39) 055-4573372
Search for more papers by this authorRoberta Sessoli Prof.
Laboratorio di Magnetismo Molecolare, Dipartimento di Chimica & INSTM, Università degli Studi di Firenze, Polo Scientifico Universitario, Via Lastruccia n. 3, 50019 Sesto Fiorentino, Italy, Fax: (+39) 055-4573372
Search for more papers by this authorFinn K. Larsen Prof.
Department of Chemistry, University of Aarhus, Aarhus, Denmark
Search for more papers by this authorJacob Overgaard Dr.
Department of Chemistry, University of Aarhus, Aarhus, Denmark
Search for more papers by this authorAnne-Laure Barra Dr.
Laboratoire des Champs Magnetiques Intenses-CNRS, 38042 Grenoble Cedex 9, France
Search for more papers by this authorSimon J. Teat Dr.
CCLRC Daresbury Laboratory, Warrington, Cheshire, WA4 4AD, UK
Search for more papers by this authorGrigore A. Timco Dr.
Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK, Fax: (+44) 161-275-4616
Search for more papers by this authorRichard E. P. Winpenny Prof.
Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK, Fax: (+44) 161-275-4616
Search for more papers by this authorThis work was supported by the EPSRC(UK), the EC-TMR Networks “MolNanoMag” (HPRN-CT-1999-00012) and “QuEMolNa” (MRTN-CT-2003-504880), the German DFG (SPP 1137) and INTAS (00-00172).
Graphical Abstract
Understanding frustration: The control of structure through the choice of the template has allowed the synthesis of nona-nuclear metal wheels that contain {Cr8Ni} or {Cr7(VO)2} cores. Magnetic studies (see picture) of one of these wheels shows that it behaves as a magnetic Möbius strip. These are the first detailed magnetic studies of an odd-numbered ring larger than trinuclear and should help in the understanding of spin-frustrated systems.
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