Dual signaling system with an extended-tetrathiafulvalene-phenanthroline dyad acting as an electrooptical cation chemosensor.
An efficient synthesis of unprecedented fused extended-tetrathiafulvalene-dipyridoquinoxaline (exTTF-dpq) dyad is described through the Horner-Wardsworth-Emmons olefination methodology from the dipyrido[3,2-a:2',3'-c]-benzo[3,4]phenazine-11,16-quinone (NqPhen) ligand starting material. This exTTF-dpq dyad is demonstrated to act as a dual redox and colorimetric sensor for cations exploiting the proximity between the redox tetrathiafulvalene and the optical phenanthroline detecting sites. Its ability for sensing cations from the d-group metal transitions (Fe(2+), Ni(2+), and Zn(2+)) and also with varied cations such as Ca(2+) and Pb(2+) is presented.
L'UNAM Université, Université d'Angers, Laboratoire MOLTECH-Anjou, CNRS UMR 6200, 2 Bd Lavoisier, 49045 Angers, France.
Marie
M
Hardouin-Lerouge
Bertrand
B
Chesneau
Magali
M
Allain
Piétrick
P
Hudhomme
D002412:Cations / Q000737:chemistry; D018360:Crystallography, X-Ray; D005456:Fluorescent Dyes / Q000737:chemistry*; D006571:Heterocyclic Compounds / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D010618:Phenanthrolines / Q000737:chemistry*
D002412:Cations; D005456:Fluorescent Dyes; D006571:Heterocyclic Compounds; D010618:Phenanthrolines; C063887:tetrathiafulvalene