Metal ion detection by luminescent 1,3-bis(dimethylaminomethyl) phenyl receptor-modified chromophores and cruciforms
作者:Anshuman Mangalum、Robert J. Gilliard Jr.、Jessica M. Hanley、Austa Marie Parker、Rhett C. Smith
DOI:10.1039/c0ob00156b
日期:——
Chromophores ranging from simple small molecule π-conjugated systems comprised of phenylene ethynylene or fluorenylethynyl units to cross-conjugated Bunz-type cruciforms have been derivatized to include 1,3-bis(dimethylaminomethyl)phenyl moieties. The photophysical responsiveness of these diamino-substituted chromophores to metal ions has been examined. Both emission enhancement (turn-on) and ratiometric fluorescence detection of Cu2+ and Zn2+ ions have been achieved in THF.
Versatile Bisethynyl[60]fulleropyrrolidine Scaffolds for Mimicking Artificial Light-Harvesting Photoreaction Centers
作者:Adrian Kremer、Emerance Bietlot、Alberto Zanelli、Joanna M. Malicka、Nicola Armaroli、Davide Bonifazi
DOI:10.1002/chem.201404372
日期:2015.1.12
Fullerene‐based tetrads, triads, and dyads are presented in which [60]fulleropyrrolidine synthons are linked to an oligo(p‐phenyleneethynylene) antenna at the nitrogen atom and to electron‐donor phenothiazine (PTZ) and/or ferrocene (Fc) moieties at the α carbon of the pyrrolidine cycle through an acetylene spacer. Cyclic voltammetry and UV/ Vis absorption spectra evidence negligible ground‐state electronic