Probing magnetic exchange interactions in molecular magnets: An inclusion compound of a dithiadiazolyl radical

Journal of Materials Chemistry

Volumn 9, Issue 7, 1999, Pages 1431-1434

  Langley, Philip J ^a   Rawson, Jeremy M ^b   Smith, J Nicholas B ^b   Schuler, Matthias ^c   Bachmann, Rainer ^c   Schweiger, Arthur ^c   Palacio, Fernando ^e   Antorrena, Guillermo ^e   Gescheidt, Georg ^d   Quintel, Andrea ^a   Rechsteiner, Peter ^a   Hulliger, Jürg ^a  

^a UNIVERSITY OF BERN   (Switzerland)

^b UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^c ETH ZURICH   (Switzerland)

^d UNIVERSITY OF BASEL   (Switzerland)

^e NONE

Author keywords

[No Author keywords available]

Indexed keywords

AZO COMPOUND; FERROMAGNETIC MATERIAL;

ARTICLE; CHEMICAL INTERACTION; CHEMICAL STRUCTURE; CONFORMATION; DIMERIZATION; MAGNETISM; TEMPERATURE DEPENDENCE;

EID: 0032790343     PISSN: 09599428     EISSN: None     Source Type: Journal    
DOI: 10.1039/a901045i     Document Type: Article

References (22)

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10. 8 Several inclusion-forming compounds such as thiourea and PHTP have been used, for example, to stabilise radicals generated in situ, or to probe anisotropic molecular motion and dynamics of certain stable nitroxides (e.g., see O. Rohde and O.H. Griffith, J. Magn. Reson., 1975, 17, 324; B. J. Gaffney, J. Phys. Chem., 1979, 83, 3345). To the best of our knowledge, no other studies of magnetic exchange pathways between radicals located within the partially isolated confines of an inclusion lattice have been reported.
11. 8 Several inclusion-forming compounds such as thiourea and PHTP have been used, for example, to stabilise radicals generated in situ, or to probe anisotropic molecular motion and dynamics of certain stable nitroxides (e.g., see O. Rohde and O.H. Griffith, J. Magn. Reson., 1975, 17, 324; B. J. Gaffney, J. Phys. Chem., 1979, 83, 3345). To the best of our knowledge, no other studies of magnetic exchange pathways between radicals located within the partially isolated confines of an inclusion lattice have been reported.
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21. 15 Preliminary ab initio calculations (H.-P. Lüthi, J. Hulliger and J. M. Rawson, unpublished results) indicate, however, that there is an excited state in which a considerable percentage of the unpaired spin density is delocalized into the phenyl ring; this opens up the possibility of optically pumping the system to bring about intra-chain magnetic coupling in the inclusion lattice. Further studies are in progress.
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