Abstract
Synthesis and Flouorescene of 2,3,4,4a,10a,11,12,13-Octahydro-1,4a,10a,14-tetraazaviolanthron-Derivatives. The tetramethyl derivative 2 of the title compound was prepared by the condensation of neopentanediamine with 3,4:9,10-perylenebis(dicarboxylic anhydride). The spectra of absorption and fluorescence with λmax = 541 and 563 nm, respectively, show a bathochromic shift versus those of the perylene dyes. The quantum yield of fluorescence is 60 percent. The analogue condensation of the anhydride with ethylenediamine gives a perylene fluorescent dye as an intermediate which contains an amino group and may, therefore, be used in acid aqueous solutions.
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