Suzanne Fery-Forgues

TL;DR: In this article, a general procedure for determining the relative fluorescence quantum yield of solutions is described, drawing attention to the many pitfalls that students may encounter, starting materials are common yellow and pink highlighter pens.

Abstract: Owing to their fairly high stability under visible irradiation, ferrocene and ferrocenyl derivatives are widely used in luminescent systems. They are classical quenchers of excited states. Both energy and electron transfer may be involved, depending on the nature of the excited species. Inter- or intramolecular quenching are encountered. Applications span from the study of reaction mechanisms to that of organized or biological media. Recently, dyads and polyads designed for their ability to mimic photosynthetic centers or for their photodiode properties have also been obtained. Finally, the incorporation of a ferrocenyl derivative in a luminescent system does not necessarily lead to luminescence quenching. New applications are emerging, in which advantage is taken of the presence of ferrocene acting as a redox center: this gives optically and electrochemically active sensors. The present review encompasses the literature up to November 1999.

TL;DR: The experimental observations provide evidence that the different molecular shape (rodlike versus three-branched) and charge distribution (dipolar versus octupolar) of the two chromophores strongly affect the packing inside the nanoparticles as well as their spectroscopic properties and colloidal stability in pure water.

TL;DR: In this paper, the optical properties of 10 new iminocoumarin dyes, bearing a cyano group at the 3 position, were studied in CH2Cl2 by UV/vis absorption and fluorescence spectroscopy.

TL;DR: The synthesis of a new family of phosphorus dendrimers built from an octasubstituted metal-free phthalocyanine core is described up to generation 5, indicating that the chromophore is more isolated, and that the dendritic shell mimics a highly polar solvent.