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1,3-Bis[4-(p-aminostyryl)-pyridinyl]-propane dibromide derivatives: Synthesis and spectroscopic investigation by Beata Jędrzejewska; Janina Kabatc; Jerzy Pączkowski is a Materials Science article available to read on EtoBox.

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The synthesis and basic spectroscopic properties of eight dichromophoric solvatochromic styrylpyridinium dyes are presented. The dyes were prepared by the condensation of propane 1,3-bis[4-methylpyridinium] dibromide with p-(N,N-dialkylamino)benzaldehydes. The synthesis of suitable substrates is presented as well. The dyes were characterized by 1 H NMR spectroscopy and their purity with the use of thin-layer chromatography. The spectroscopic properties of the prepared dyes were determined in two organic solvents. The electronic absorption spectra of tested dyes demonstrate low sensitivity to the nature of the substituents introduced into the side aromatic rings. In contrast to this, the fluorescence band positions are affected by the structure of an electron donor and solvent polarity.

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Author

Beata Jędrzejewska; Janina Kabatc; Jerzy Pączkowski

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0143-7208)

Published

2007

Language

EN

Field

Materials Science (Physical Sciences)