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Citation: TAN Chun-Xia, FENG Ruo-Fei. Synthesis and Electrochemical Properties of 3-(4'-Pyridyl)/phenyl-6-aryl-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazoles[J]. Chinese Journal of Applied Chemistry, ;2007, 24(11): 1332-1336. shu

Synthesis and Electrochemical Properties of 3-(4'-Pyridyl)/phenyl-6-aryl-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazoles

TAN Chun-Xia ^a,, ,
FENG Ruo-Fei ^b

1.
a Gansu Traditional Medical College, Lanzhou 730000;
2.
b Life Science & Engineering College Northwest University for Nationalitise, Lanzhou

Corresponding author: TAN Chun-Xia,
Received Date: 17 December 2006
Available Online: 10 March 2007

The title compounds were synthesized from 3-(4'-pyridyl)/phenyl-4-amino-5-mercapto-1,2,4-triazoles with aryl acid via cyclization in the presence of phosphoryl chloride. Yields were about 42%~72%. The structure of these compounds were comfirmed by IR, ¹H NMR and elemental analysis. The electro-chemical analysis was carried out at -1.4~1.0 V with negative scanning. Cyclic voltammetric curves of compounds 2a~2i showed that title compounds all had reduction peaks and their onset potentials were -0.35~-0.95 V. UV spectra and cyclic voltammograms of these compounds were measured and used to calculate their electron affinities(E_A), ionization potentials(P_I) and band gaps. Data show that these compounds all had higher E_A(3.79~4.39 eV)and higher P_I(6.95~7.84 eV) compared with PBD, which are apt to the transfer of electrons and back holes.
- triazolo[3,4-b]-thiadiazole,
- cyclic voltammogram,
- electron transport
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