Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Volume 37 , Issue 9
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  • Toyonari Sugimoto
    2008 Volume 37 Issue 9 Pages 896-901
    Published: September 05, 2008
    Released: July 26, 2008
    JOURNALS RESTRICTED ACCESS
    New donor molecules with a bent molecular skeleton, tetrathiafulvalenoquinone(-thioquinone)-1,3-dithiole(-diselenole)methides are synthesized, which are used for the preparation of charge-transfer (CT) salts with magnetic FeIII and CuII ions. The CT salts with FeX4 (X = Cl and Br) ions have such crystal structures that are composed of alternating layers of the donor molecules and the FeX4 ions. On the other hand, for the CT salts with CuII ions the donor molecules or both the donor molecules and the CuII ions are stacked to each other to form one-dimensional channels, where the other CuI and/or CuII ions are included inside. Depending on the stacking structures of the donor molecules electrical conducting properties are metallic, semiconducting or insulating. The d spins of the FeIII and CuII ions interact by themselves and also with the conducting π electrons of the donor molecules, bringing about ferromagnetic, weak ferromagnetic, or antiferromagnetic orderings.
    New donor molecules with a bent molecular skeleton, tetrathiafulvalenoquinone(-thioquinone)-1,3-dithiole(-disele-nole)methides are synthesized, which are used for the preparation of charge-transfer (CT) salts with magnetic FeIII and CuII ions. The CT salts with FeX4 (X = Cl and Br) ions have such crystal structures that the donor molecules and the FeX4 ions form layers, respectively, and are alternately stacked to each other. On the other hand, for the CT salts with CuII ions the donor molecules or both the donor molecules and the CuII ions are stacked to each other to form one-dimensional channels, where the other CuI and/or CuII ions are included inside. Depending on the stacking structures of the donor molecules electrical conducting properties are metallic, semiconducting or insulating. The d spins of the FeIII and CuII ions interact by themselves and also with the conducting π electrons of the donor molecules, bringing about ferromagnetic, weak ferromagnetic or antiferromagnetic orderings. Fullsize Image
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