6533b835fe1ef96bd129fd90

RESEARCH PRODUCT

Synthesis of azobenzene substituted tripod-shaped bi(p-phenylene)s. Adsorption on gold and CdS quantum-dots surfaces

Jana KreigbergaMartins RutkisJ. Manuel López RomeroManuel AlgarraJesús HierrezueloValdis KamparsMaria ValpuestaRodrigo RicoAmelia Díaz

subject

Kelvin probe force microscopeNanostructureOrganic ChemistryTripod (photography)ChromophoreBiochemistrychemistry.chemical_compoundCrystallographyAzobenzenechemistryQuantum dotPhenyleneDrug DiscoveryOrganic chemistryMolecule

description

We report here the synthesis of several tripod-shaped oligo(p-phenylene)s with legs composed of two phenylene units. Each leg is end-capped with a thioacetate group for adhesion to metallic surfaces. An azobenzene chromophore group is present on the functional arm of the tripod. The key step in the synthesis is the Pd-catalyzed Suzuki cross-coupling reaction of the silicon derivative core molecule with substituted phenyl moieties and azobenzene derivatives. Gold surfaces prepared by thermal evaporation and CdS quantum-dots surfaces were covered by the tripod-shaped molecules. Modified surfaces were characterized by atomic force microscopy (AFM), fluorescence, and Kelvin Probe analyses.

yearjournalcountryeditionlanguage
2013-04-01Tetrahedron
https://doi.org/10.1016/j.tet.2013.02.054