Triangulenium Salts Derivatives, Application & Molecular Photophysics

Ph.D. Forsvar af Thomas Just Sørensen.
Vejledere: Professor Klaus Bechgaard og Lektor Bo W. Laursen. 

Abstract

The colour of organic molecules has been of interest ever since man started picturing the world around him. Millennia later Spanish missionaries were among the first to comment on fluorescence from extracts of Mexican trees. Over the centuries great thinkers like Boyle, Galileo, Brewster and Herschel gave thought to the luminescent properties of materials, culminating in the great treatise by Stokes in 1852. Almost all the known fluorophors of today was first synthesized in the years between this publication and the paper of Lewis on ‘The Color of Organic Substances’ in 1939. Relatively few completely new fluorescent systems have been introduced. The trioxatriangulenium salt by Martin and Smith in 1964, the squaraines by Treibs and Jacob in 1965 and the rylene dyes in 1989.
In this talk the focus will be on the relationship between molecular structure and photophysical properties, in particular how new properties arise with apparently simple changes in the molecular structure. The talk concentrates on the triangulenium derivatives and derivatives of these triangular fluorescent dyes.

Evaluerings komité

Associate Professor Niels Harrit, Chairman, Department of Chemistry,
University of Copenhagen, Denmark
Prof. Dr. Luisa De Cola, University of Münster, Germany
Prof. Dr. Mark Van der Auweraer, KU Leuven, Belgium

Vejledere

Professor Klaus Bechgaard, Department of Chemistry, University of Copenhagen, Denmark
Associate Professor Bo W. Laursen, Department of Chemistry, University of Copenhagen, Denmark