novel coordination chemistry is the extensive use of fluorescence
techniques (including fluorescence anisotropy) to study meta-
l–ligand coordination processes. The role of metal ions can be mul-
tifarious: (1) quencher or enhancer of the organic dendrimer
luminescence, a phenomenon that can be exploited for sensing
purposes; (2) acceptor of the excitation energy of the dendrimer
chromophores with generation of intense metal-centered lumines-
cence (antenna effect); (3) controller of the intensity of the various
types of ligand-centered luminescence (fluorescence and phospho-
rescence of molecular component units of the dendrimer, emission
from excimer and exciplex species), which might be exploited for
information processing.
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