Abstract
The mass spectra of some unsubstituted (in the heteroresidues and polymethine chain) thiacarbo- and polycarbocyanines were investigated. It was ascertained that the first act of disintegration of the dye molecules is splitting out of an alkyl halide ion to give an anhydro base ion. Some regularities between the structure of the dyes and the fragmentation of the anhydro ions obtained from them are exposed. The peculiarities of the dissociative ionization of the dye molecules as the polymethine chain is lengthened are shown.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 62–65, January, 1975.
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Zhigulev, K.K., Kolodkin, F.L., Raikhina, R.D. et al. Mass spectrometry of polymethine dyes. Chem Heterocycl Compd 11, 51–54 (1975). https://doi.org/10.1007/BF00945271
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DOI: https://doi.org/10.1007/BF00945271