Assembly of Near-Infrared Luminescent Lanthanide Host(Host–Guest) Complexes With a Metallacrown Sandwich Motif

Authors

  • Joseph Jankolovits,

    1. Department of Chemistry, University of Michigan, Ann Arbor, 930 N. University Ave, Ann Arbor, MI 48109-1055 (USA)
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  • Dr. Christopher M. Andolina,

    1. Chemical Sciences Division, Lawrence Berkeley National Laboratories, Berkeley, CA 94720-1460 (USA)
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  • Dr. Jeff W. Kampf,

    1. Department of Chemistry, University of Michigan, Ann Arbor, 930 N. University Ave, Ann Arbor, MI 48109-1055 (USA)
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  • Prof. Kenneth N. Raymond,

    Corresponding author
    1. Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720-1460 (USA)
    2. Chemical Sciences Division, Lawrence Berkeley National Laboratories, Berkeley, CA 94720-1460 (USA)
    • Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720-1460 (USA)
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  • Prof. Vincent L. Pecoraro

    Corresponding author
    1. Department of Chemistry, University of Michigan, Ann Arbor, 930 N. University Ave, Ann Arbor, MI 48109-1055 (USA)
    • Department of Chemistry, University of Michigan, Ann Arbor, 930 N. University Ave, Ann Arbor, MI 48109-1055 (USA)
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  • J.J., J.W.K, and V.L.P. thank the NSF for support of this research (CHE-1057331 and CHE-0717098) and acknowledge funding from NSF grant CHE-0840456 for X-ray instrumentation. Work at LBNL is supported by the Director, Office of Science, Office of Basic Energy Sciences, DOE under Contract DE-AC02-05CH11231.

Abstract

original image

Oszillatoren ausgeschaltet: Ein selbstorganisierter Einschlusskomplex aus einem LnIII[12-Metallakrone-4]23+-Sandwich (grün und bronzefarben) und einer [24-Metallakrone-8]-Einheit (violett) ist in Methanol stabil. Der YbIII-Komplex weist eine hohe Quantenausbeute (0.89 %) und Lumineszenzdauer (14 μs) auf, was mit dem Ausschalten von energiereichen Oszillatoren im Bereich von 6.7 Å um das emittierende YbIII-Ion durch die Metallakronentopologie erklärt wird.

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