Jump to main content
Jump to site search

Issue 6, 2012
Previous Article Next Article

Supramolecular architectures for controlling slow magnetic relaxation in field-induced single-molecule magnets

Author affiliations

Abstract

In order for molecular magnetic materials to become functional, they must retain their magnetization at reasonable temperatures implying high energy barriers for spin reversal. The field of single-molecule magnets (SMMs) has recently experienced an explosion of research targeting these high anisotropic barriers. Achieving such feats has involved increasing the spin of a complex and/or increasing the inherent magnetic anisotropy. Exerting control over the total spin of a complex has been possible contrary to controlling the global anisotropy. Herein, we report the experimental and theoretical study of local anisotropy alignment on DyIII metal centers and their orientation relative to other centers in rare, dinuclear quadruply-stranded helicate/mesocate complexes. A detailed study of these supramolecular architectures has advanced our knowledge of the origins of magnetic relaxation in SMMs which was shown to arise from minute changes in bond distances around the metal centers leading to changes in the local anisotropy and, in turn, the effective energy barriers.

Graphical abstract: Supramolecular architectures for controlling slow magnetic relaxation in field-induced single-molecule magnets

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 07 Dec 2011, accepted on 18 Mar 2012 and first published on 19 Mar 2012


Article type: Edge Article
DOI: 10.1039/C2SC01029A
Citation: Chem. Sci., 2012,3, 2158-2164
  •   Request permissions

    Supramolecular architectures for controlling slow magnetic relaxation in field-induced single-molecule magnets

    F. Habib, J. Long, P. Lin, I. Korobkov, L. Ungur, W. Wernsdorfer, L. F. Chibotaru and M. Murugesu, Chem. Sci., 2012, 3, 2158
    DOI: 10.1039/C2SC01029A

Search articles by author