The fluorescence of the concentrated solutions of N-vinylcarbazole and the structure of the second excimer sites of poly-N-vinylcarbazole
The emission properties of N-vinylcarbazole have been investigated. Fluid solutions were observed covering a broad range of concentration to exhibit the structureless excimer emission bands at energies approximately 2 200 cm−1 and 4 100 cm−1 to the red of the 355 nm emission band of the monomer fluorescence of dilute solution. In high concentration range (1M) N-vinylcarbazole shows broad fluorescence composed of three components. The broad emission at the longer wavelength (λ max=415 nm) is assigned to the sandwich-like excimer fluorescence and the interesting, new emission in the short-wavelength region (λ max=385 nm) is assigned to the second excimer fluorescence in analogy to poly-N-vinylcarbazole.
Key wordsFluorescence N-vinylcarbazole excimer poly-N-vinylcarbazole
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- 4.Asai M, Matsui H, Takeda Y, Tazuke S (1972) International Symposium on Macromolecules, Helsinki, JulyGoogle Scholar
- 5.Siegoczyński RM, Jedrzejewski J, Kawski A (1975) Acta Phys Pol A47:707Google Scholar
- 8.Kloepffer W, Liptay W (1970) Z Naturforsch 25a:1091Google Scholar
- 9.Kloepffer W (1970) Ber Bunsenges Physik Chem 74:693Google Scholar