Laboratoire MOLTECH-Anjou                        

Tuning the structure and the properties of dithiafulvene metalla-assembled tweezers.

Maksym Dekhtiarenko, Serhii Krykun, Vincent Carré, Frédéric Aubriet, David Canevet, Magali Allain, Zoia Voitenko, Marc Sallé, Sébastien Goeb

Abstract: A M₂L₂ metalla-macrocycle constructed through coordination driven self-assembly from the Pd(dppf)OTf₂ complex (dppf = 1,1′-bis (diphenylphosphino) ferrocene) and an electron-rich 9- (1,3-dithiol-2-ylidene) fluorene bis-pyridyl ligand is depicted. This molecular tweezer exhibits a cavity able (i) to promote dimerization upon oxidation and (ii) to bind an electro-deficient substrate with a high association constant. Those properties are compared with those of a previously described regioisomer.

DOI: https://doi.org/10.1039/D0QO00641F