NNS is produced by flash vacuum pyrolysis of 5-aryl-1,2,3,4-thiatriazoles 1, 3, 5, and 7 and 5-phenoxy-1,2,3,4-thiatriazole (9). The Ar matrix infrared spectrum shows nu(NN) at 2039 cm-1 and nu(NS) at 752 cm-1. The experimental data are compared with high-level ab initio as well as semiempirical (MNDO) calculated structural and vibrational data. NNS is destroyed photochemically or on heating to 160 K.
5-substituted-thio-1,2,3,4-thiatriazoles and 5-substituted-oxy=1,2,3,4-thiatriazoles have been found to be supersensitive for silver halide photographic emulsions spectrally sensitized to the red and infrared regions of the electromagnetic spectrum.
Pilgram,K. et al., Journal of Heterocyclic Chemistry, 1971, vol. 8, p. 951 - 959
作者:Pilgram,K. et al.
DOI:——
日期:——
Jensen,K.A. et al., Acta Chemica Scandinavica (1947), 1967, vol. 21, p. 2792 - 2796
作者:Jensen,K.A. et al.
DOI:——
日期:——
Red and infrared films containing either 5-thio-1,2,3,4-thiatriazoles and 5-oxy-1,2,3,4-thiatriazoles or 5-substituted-thio-1,2,3,4-thiatriazoles and 5-substituted-oxy-1,2,3,4-thiatriazoles