| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1496637 | Optical Materials | 2006 | 9 Pages |
Abstract
Interactions of phenolic and carboxylic groups containing NLO chromophores with NaOH in methanol were investigated by UV/vis, fluorescence and 1H NMR measurements. With the aid of a mathematical fitting procedure, it was possible to separate the single contributions of the differently charged chromophore molecules to the overall UV/vis spectra. Individual concentrations of the involved species in dependence on the NaOH concentration were calculated by approximation of measured and calculated UV/vis spectra.The fully deprotonated chromophores with their higher extent of conjugation did not exhibit remarkable fluorescence while the 3rd order NLO activity was observed to show the opposite behavior.
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Authors
Ulrich Oertel, Marina M. Dudkina, Hartmut Komber, Bettina Pilch, Andrey V. Tenkovtsev, Frank Böhme,