Novel Electron Acceptors Bearing a Heteroquinonoid System. I. Synthesis and Conductive Complexes of 5,5′-Bis(dicyanomethylene)-5,5′-dihydro-<i>Δ</i><sup>2,2′</sup>-bithiophene and Related Compounds
作者:Koji Yui、Yoshio Aso、Tetsuo Otsubo、Fumio Ogura
DOI:10.1246/bcsj.62.1539
日期:1989.5
Novelelectronacceptors bearing a heteroquinonoid system, 5,5′-bis(dicyanomethylene)-5,5′-dihydro-Δ2,2′-bithiophene, its 3,3′-dichloro, 3,3′-dibromo, and 3,3′,4,4′-tetrabromo derivatives, and 5,5″-bis(dicyanomethylene)5,5″-dihydro-Δ2,2′:5′,2″-terthiophene were synthesized by the action of tetracyanoethylene oxide or by Pd(0)-catalyzed substitution reactions with sodium dicyanomethanide on the corresponding
Novel Electron Acceptors Bearing a Heteroquinonoid System. II. Synthesis and Conductive Complexes of 2,5-Bis(dicyanomethylene)-2,5-dihydrothieno[3,2-<i>b</i>]thiophene, 2,6-Bis(dicyanomethylene)-2,6-dihydrodithieno[3,2-<i>b</i>:2′,3′-<i>d</i>]thiophene, and Their Derivatives
Novel heteroquinonoid compounds as potential electron acceptors, 2,5-bis(dicyanomethylene)-2,5-dihydrothieno[3,2-b]thiophene (4a), 3,6-dibromo derivative, 2,6-bis(dicyanomethylene)-2,6-dihydrodithieno[3,2-b:2′,3′-d]thiophene, 3,5-dibromo derivative, and 4,4-dioxide were synthesized by the action of tetracyanoethylene oxide or by a Pd(0)-catalyzed substitution reaction with sodium dicyanomethanide on
The preparation of some unsymmetricaltetrathiafulvalenes and the electricalconductivities of their charge transfer complexes with tetracyanoquinodimethane (TCNQ) are described; the ethylenedithio(trimethylene)tetrathiafulvalene–TCNQ complex exhibited higher conductivity than complexes of tetrathiafulvalene, tetramethyltetrathia-fulvalene, and hexamethylenetetrathiafulvalene with TCNQ.
Charge–transfer complexes of bis-1,2,5-thiadiazolo-tetracyano–quinodimethan (BTDA-TCNQ) with various donors were prepared. The 1:1 complex of dimethyldihydrophenazine with BTDA-TCNQ was found to be highly conductive. Factors governing the conductivities were investigated.
Organic metals: a new series of radical-cation salts based on an alkylated tetrathiafulvalene
作者:J. M. Fabre、L. Giral、E. Dupart、C. Coulon、P. Delhaes
DOI:10.1039/c39830000426
日期:——
A newseries of radical-cationsalts, prepared by electro-oxidation, of 2-(4,5-dimethyl-1,3-dithiol-2-ylidene)-5,6-dihydro-4H-cyclopenta-1,3-dithiole exhibit very promising d.c. electrical conductivity and e.s.r. characteristics (linewidth and g-factor); an antiferromagnetic state probably exists at low temperature.