Time‐Resolved Fluorescence Studies of Labelled Nucleosides

Abstract
Synthesis, steady‐state and time‐resolved fluorescence measurements of carboxycoumari labelled aminonucleosides (thymidine, cytidine, guanosine) are described. The data indicate a strong influence of the coupling position, the linker length and the structure of the coumarin dye on the quenching rates.