The electronic absorption, emission spectra as well as fluorescence quantum yields of some coumarin derivatives were measured in different solvents of different polarities. pKa and pKa* were calculated using universal buffers. The dyes undergo micellization in different micelles and may be used as a probe to determine the critical micelle concentrations (CMC) of CTAB and SDS. The effect of metal ions like [Cu+2, Co+3, Ni+2] as quenchers and the effect of temperature on quenching are studied and thermodynamic parameters have been calculated.
El-Sheikh, M., Azim, S. A., Abou Saif, A. K., & Okba, E. A. (2017). A Spectroscopic and Photochemical Behavior of Some Coumarin Derivatives. Delta Journal of Science, 38(2), 183-193. doi: 10.21608/djs.2017.139448
MLA
Mohamed.Y. El-Sheikh; Saleh. A. Azim; Ali. K. Abou Saif; Ehab. A. Okba. "A Spectroscopic and Photochemical Behavior of Some Coumarin Derivatives". Delta Journal of Science, 38, 2, 2017, 183-193. doi: 10.21608/djs.2017.139448
HARVARD
El-Sheikh, M., Azim, S. A., Abou Saif, A. K., Okba, E. A. (2017). 'A Spectroscopic and Photochemical Behavior of Some Coumarin Derivatives', Delta Journal of Science, 38(2), pp. 183-193. doi: 10.21608/djs.2017.139448
VANCOUVER
El-Sheikh, M., Azim, S. A., Abou Saif, A. K., Okba, E. A. A Spectroscopic and Photochemical Behavior of Some Coumarin Derivatives. Delta Journal of Science, 2017; 38(2): 183-193. doi: 10.21608/djs.2017.139448
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