Redox switchable ligands

Le Derf, F. Mazari. M. Mercier. N. Levillain, E. Trippe, G. Riou, A. Richomme, P. Becher. J. Garin. J. Orduna. J. Gallego-Planas, N. Gorgues, A. Salle. M. Tetrathiafulvalene crowns Redox-switchable ligands. Chem Eur. J. 2001. 7. 447-455. and references therein. 

Lyskawa, J., F. Le Derf, E. Levillain, M. Mazari, M. Salle, L. Dubois, P. Viel, C. Bureau, and S. Palacin. 2004. Univocal demonstration of the electrochemically mediated binding of Pb by a modified surface incorporating a TTF-based redox-switchable ligand. / Am Chem Soc 126 12194-12195. 

A. L. Terthienyl and Poly-terthienyl Ligands as Redox-Switchable Hemilabile Ligands for Oxidation-State-Dependent Molecular Uptake and Release. J. Am. Chem. Soc. 2001, 123, 2503-2516. 

K. Gloe, H. Granbaum, M. Wiist, et al., Macrocyclic and open-chain ligands with the redox switchable trithiadiaza-pentalene unit synthesis, structures... 

The problem raised by the deactivation of vacant site could be solved by the design of a protective device such as a redox-switchable hemilabile ligand, RHL [62]. Ideally, the protective device should (1) be activated by an electronic (redox) or chemical (pH) instruction, (2) open the binding site only in the presence of the substrate, (3) function reversibly so that the site is protected back when the bound substrate is lost (due to reversibility of the binding step or due to decoordination during subsequent steps). An example of an electrochemically... 

Syntheses, electrochemical and spectroscopic (UV, Vis, NIR, and EPR) properties of [ MoCl(Tp )(NO) 2( -i-L)] containing two-redox active Mo(Tp ) units linked by a conjugated bridging ligand L have been reported by McCleverty and others. Some of these complexes exhibit intense, redox-switchable absorbance in the near-IR region.75... 

The terthienyl ligand of the ruthenium complex 15 is recognized as a redox-switchable hemilabile ligand (Scheme 3.8). ... 

D. A. Weinberger, T. B. Higgins, C. A. Mirkin, L. M. Liable-Sands and A. L. Rheingold, Terthienyl-based redox-switchable hemilabile ligands transition metal polymeric complexes with electrochemically tunable or switchable coordination environments, Angew. Chem. Int. Ed., 38, 2565-2568 (1999). 

---