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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25322

    Title: Synthetic conducting materials IX. 7,7,8,8-Tetracyanoquinodimethane salts of binuclear copper chelate with α-diimin ligand
    Authors: 王文竹;Wang, Wen-jwu;Wang, S. S.
    Contributors: 淡江大學化學學系
    Date: 1991-05-15
    Issue Date: 2009-12-01
    Publisher: Elsevier
    Abstract: A series of binuclear copper chelate with α-diimine ligand have been synthesized both in Cu(I) and Cu(II) form. Metatheses between lithium tetracyanoquinodimethane, LiTCNQ, and the binuclear copper chelate yielded semiconductive complexes in the form of Cu2L(TCNQ)2, Cu2L(TCNQ)2I2, Cu2L2)TCNQ)I, and Cu2L2(TCNQ)2I2 where L is binucleating α-diimine ligand. All the complexes have been characterized by elemental analysis, infrared, electronic, mass, electron spin resonance spectra, magnetic susceptibility and electrical conductivity measurements. The conductivities were in the range of 10−3 to 10−5Scm−1 with activation energy of 0.17 eV. The electron spin resonance spectra show the results of strong coupling between copper and TCNQ. The coupling strength decreased as the temperature decreasing from 300°K to 77°K. The compounnds can be formulated as [Cu2LL][TCNQ−]I, and [CuII2L2][TCNQ−]2I2; a partial electron transfer occurs from CuI to TCNQ− in n-type semiconductor form or TCNQ− to CuII in p-type semiconductor form.
    Relation: Synthetic metals 42(1-2), pp.1729-1734
    DOI: 10.1016/0379-6779(91)91941-3
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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