I am trying to record fluorescence spectra of one of my inorganic complex in different solvents. In different solvents, fluorescence intensity is coming different. that is not in polarity order.Can you plz explain why is anomaly is coming?
It is very difficult to explain the anomalous fluorescence behaviors of the complex without knowing the real structure, such as its metal center, ligands and interactions with the used solvents. I mean the solvents facilitate/hindered electron mobility, or ligand exchange reaction of the complex occurs or not. You can see the following papers:
Article Solvent effect on fluorescence spectra of a spirooxazine
Article Study on the solvent effect and fluorescence spectrum of dye...
Article Solvent effect on fluorescence of fat-soluble riboflavin derivatives
Md. Abdur Rahman Thanks for the answer.
Compound is a Schiff base complex of ZN(II) and its a hexanuclear Zinc cluster .
The basic reason for the variation of lifetimes and intensities of fluorescence is based on the fact that there are many factors determining the fluorescence in a solvent.
The local electric field is one aspect. However also the dielectricty, means the local refraction index determines the fluorescence intensity. Next there can be strong (collisional or even static) inetractions between solvent and the dyes influencing (quenching) fluorescence.
Some very basic aspects can also be found here:
https://micro.magnet.fsu.edu/primer/java/jablonski/solventeffects/index.html
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