| Summary: | 碩士 === 淡江大學 === 化學學系 === 81 === Simple and complex alkylammonium salts of electron acceptors
Qmnt (5,10-dihydro-5,10-dioxo-[1,2,-b:4,5-b ]bis[1,4]dithiole-
benzo-2, 3,7,8-tetracarbonnitrile) and Qimnt(2,2
-(4,8-dihydro-4,8-dioxo -[1,2-d:4,5-d ]-bis[1,3
]dithioilebenzo-2,6-diylidene)-bispropandi nitrile) were
prepared by reactions of the acceptors with R4NI in
acetonitrile. These salts were studied using various
techniques, including infrared and electronic absorption
spectracopies, temperature -varied SQUID and DC-conductivity
measurements. Salts with siniclar composition gave very similar
infrared spectra. Solution electronic absorption spectra could
be use to determine quantitatively the total content of Q and
Q- Solid-State electronic absorption spectra suggested Q-(Q-
and Q) anions (anions and molecules ) associate to polymers in
the salts are diamagnetic and the complex salts are weakly ,
consistent with the association of the acceptors in the salts.
The DC-conductivities range from 10(-6) to 10(-12) S/cm for
the simple salts and 10(-4) to 10(-8) S/cm for the complex
salts.
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