Synthesis and Electrochemical and Photophysical Characterization of New 4,4'-π-Conjugated 2,2'-Bipyridines that are End-Capped with Cyanoacrylic Acid/Ester Groups.
Two new functionalized 4,4'-disubstituted 2,2'-bipyridines that were end-capped with cyanoacrylic acid or cyanoacrylic acid ester anchoring groups, which might allow their efficient functionalization on TiO2 or other metal-oxide semiconductor surfaces, have been synthesized and characterized by electrochemical, photophysical, and spectroscopic measurements. The electrochemical and photophysical properties of these 4,4'-disubstituted 2,2'-bipyridines with extended π systems, in particular their LUMO energies, make them promising candidates to build up inorganic-organic hybrid photosensitizers for the sensitization of metal-oxide semiconductors (e.g., TiO2 nanoparticles and/or nanotubes).
Department of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Henkestrasse 42, 91054, Erlangen, Germany.
Anja
A
Fingerhut
Department of Chemistry and Pharmacy, Inorganic Chemistry Chair II, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 1, 91058, Erlangen, Germany.
Yanlin
Y
Wu
Department of Chemistry and Pharmacy, Physical Chemistry Chair I, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 3, 91058, Erlangen, Germany. axel.kahnt@fau.de.
Axel
0000-0002-8142-0511
A
Kahnt
Department of Chemistry and Pharmacy, Inorganic Chemistry Chair II, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 1, 91058, Erlangen, Germany. julien.bachmann@fau.de.
Julien
J
Bachmann
Department of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Henkestrasse 42, 91054, Erlangen, Germany. svetlana.tsogoeva@fau.de.
Svetlana B
0000-0003-4845-0951
SB
Tsogoeva
adsorption; bipyridines; conjugation; fluorescence; photosensitizers