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Resonance Raman spectra of hydroxyphenyl squaraines: acid–base versus aggregation equilibria by José Guilherme S. Lopes; Régis A. Farani; Luiz Fernando C. de Oliveira; Paulo S. Santos is a Chemistry article available to read on EtoBox.
What is Resonance Raman spectra of hydroxyphenyl squaraines: acid–base versus aggregation equilibria about?
## Abstract The optical and resonance Raman spectra (RR) of bis(phloroglucinol)squaraine (I) and bis(resorcinol)squaraine (II) were investigated, revealing that the equilibria between the neutral and anionic species present in solution explain the experimental observations much better than the previously proposed aggregation equilibria. In particular, the RR spectra were invaluable to assign characteristic modes of (I) and its monoanion, since the tuning of the excitation line to the electronic transition band of the neutral or monoanionic specie leads to the enhancement of the respective modes that are exclusive of each species. In addition, small angle X‐ray scattering (SAXS) experiments with (I) did not show any evidence of aggregation. Copyright © 2006 John Wiley & Sons, Ltd.
Who reads Resonance Raman spectra of hydroxyphenyl squaraines: acid–base versus aggregation equilibria?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- José Guilherme S. Lopes; Régis A. Farani; Luiz Fernando C. de Oliveira; Paulo S. Santos
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0377-0486)
- Published
- 2006
- Language
- EN
- Field
- Chemistry (Physical Sciences)