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- W1966212907 abstract "A series of 1,2,4,5-tetrazine derivatives have been synthesized from 2-cyanopyridine and hydrazine. The charge transfer complexes of tetrazine derivatives and 7,7,8,8-tetracyanoquinodimethane (TCNQ) have been prepared and characterized by elemental analysis, infrared, electronic, electron spin resonance, mass spectra, magnetic susceptibility and electric conductivity measurements. The infrared spectra show a very strong absorption envelope in the range between 4000 to 1000 cm−1 causing from the electronic conduction band. The degree of charge transfer was estimated as 0.6 by using the cyano stretching frequency of TCNQ in complex. The electric conductivity (powder pellet) is 1.99 Scm−1 at room temperature with activation energy of 0.113 eV. The charge transfer complexes have semiconductor properties investigated by variable temperature conductivity measurements. Electron spin resonance spectra were recorded on these charge transfer complexes at different temperature. The observed g-values increased with decreasing temperature. The peak broadened and peak height decreased with decreasing temperature. On the basis of these results, no local unpaired ellectrons contributed from tetrazine cation were proposed." @default.
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- W1966212907 date "1991-05-01" @default.
- W1966212907 modified "2023-10-14" @default.
- W1966212907 title "Synthetic conducting materials VIII synthesis and characterization of 7,7,8,8-tetracyanoquinodimethane salt with tetrazine derivatives" @default.
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- W1966212907 doi "https://doi.org/10.1016/0379-6779(91)91940-c" @default.
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