Phenylene bridged boron-nitrogen containing dendrimers.
The synthesis and characterization of novel phenylene bridged boron-nitrogen containing π-conjugated dendrimers N3B6 and N3B3, with peripheral boron atoms and 1,3,5-triaminobenzene moiety as a core, are presented. UV-vis absorption and emission measurements reveal that the optical properties of the resulting compounds can be controlled by changing the donor/acceptor ratio: a 1:1 ratio results in a more efficient charge transfer than the 1:2 ratio. This was proven by the red shift of the emission maxima and the stronger solvatochromic effect in N3B3 compared to N3B6.
Proń
Agnieszka
A
Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
Baumgarten
Martin
M
Müllen
Klaus
K