organic conductors based on radical anion salts;
electrochemical methods;
electrical transport;
magnetic susceptibility;
D O I:
10.1016/S0379-6779(00)00980-2
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
[(n-Bu)(4)N](2) [Au(dcbdt)(2)](5) was obtained as brown thin plate shaped crystals by electrochemical oxidation of (n-Bu)(4)N [Au(dcbdt)(2)], a Au complex with 4,5-dicyanobenzene-1,2-dithiolate (dcbdt) recently prepared. Cyclic voltammetry and optical spectroscopy studies indicate a mixed valence state. The crystal structure is triclinic and presents slightly pentamerised segregated stacks of the complex along (1,2,0). Single crystal electrical conductivity (sigma (RT)similar to 10 S/cm, Ea=13.5 meV) and thermopower measurements (S-RT=-6 mu V/K) suggest a degenerate semiconducting behaviour. The static susceptibility measurements give an almost temperature independent paramagnetic value of 3.5x10(-4) emu/mol. These and EPR results are discussed in relation to the crystal structure.
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页码:1011 / 1012
页数:2
相关论文
共 4 条
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Alcacer L., 1983, Extended linear chain compounds. Vol.3, P319
[2]
Cassoux P, 1998, CHEMISTRY OF ADVANCED MATERIALS, P19