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High-Spin Cyclopentadienyl Complexes: A Single-Molecule Magnet Based on the Aryl-Iron(II) Cyclopentadienyl Type

Authors

  • Daniel Weismann,

    1. Fachbereich Chemie der Universität Kaiserslautern (Germany)
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  • Dr. Yu Sun,

    1. Fachbereich Chemie der Universität Kaiserslautern (Germany)
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  • Dr. Yanhua Lan,

    Corresponding author
    1. Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, Gebäude 30.45, 76131 Karlsruhe (Germany), Fax: (+49) 721-608-48142
    • Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, Gebäude 30.45, 76131 Karlsruhe (Germany), Fax: (+49) 721-608-48142
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  • Gotthelf Wolmershäuser,

    1. Fachbereich Chemie der Universität Kaiserslautern, Erwin-Schrödinger-Strasse, 67663 Kaiserslautern (Germany), Fax: (+49) 631-205-4399
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  • Prof. Dr. Annie K. Powell,

    1. Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, Gebäude 30.45, 76131 Karlsruhe (Germany), Fax: (+49) 721-608-48142
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  • Prof. Dr. Helmut Sitzmann

    Corresponding author
    1. Fachbereich Chemie der Universität Kaiserslautern, Erwin-Schrödinger-Strasse, 67663 Kaiserslautern (Germany), Fax: (+49) 631-205-4399
    • Fachbereich Chemie der Universität Kaiserslautern, Erwin-Schrödinger-Strasse, 67663 Kaiserslautern (Germany), Fax: (+49) 631-205-4399
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  • High-Spin Cyclopentadienyl Complexes, Part 8. For Part 7, see ref. 1a.

Abstract

original image

The mononuclear high-spin iron(II) complex 1, coordinated by a pentaisopropylcyclopentadienide and an aryl group (see graphic), has been prepared and characterized by X-ray diffraction analysis. AC magnetic studies have revealed that this species exhibits slow magnetic relaxation and has the characteristics of a single-molecule magnet.

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