Inclusion of methylviologen in cucurbit[7]uril

Control of the stoichiometry in host-guest complexation by redox chemistry of guests: inclusion of methylviologen in cucurbit[8]uril.

The binding stoichiometry of a host-guest complex can be effectively controlled by the redox chemistry of the guest: a 1:1 inclusion complex of methylviologen dication (MV2+) in cucurbit[8]uril (CB[8]) converts completely and reversibly to a 2:1 inclusion complex of cation radical (MV+.) in CB[8] upon the reduction of the guest.

Electrochemistry of porous and crystalline silicon electrodes in methylviologen solutions

From measurements using stationary and rotating disc and ring-disc electrodes, it is concluded that the reduction reactions of the divalent methylviologen cation MV 2(to MV +" and MV °) proceed via the conduction band of both porous and crystalline silicon. The product of the second reduction step (MV °) forms a blocking layer on the electrode. The oxidation reactions of MV ° and MV ÷" take pla...

Photosensitized production of doubly reduced methylviologen followed by highly efficient methylviologen radical formation using self-assembling ruthenium(II) complexes.

Supramolecular fibers of Ru(II) complexes act as efficient photosensitizers, photochemically generating methylviologen radical (MV.+) and then converting it quantitatively to doubly reduced methylviologen, (MV0), in the presence of triethanolamine.

Micellar effects on the reductive electrochemistry of methylviologen

Paraquat (Methylviologen): Its Interference with Primary Photochemical Reactions

Paraquat (methylviologen: l,l'-dimethyl-4,4'bipyridinium) has been used widely as a herbicide for some years. Methylviologen (MV) has also been known as an extremely electronegative artifi­ cial electron acceptor, and used in laboratories for the studies of biological electron transfer systems. Its midpoint redox potential, -446 mV, is as low as that of ferredoxin, the lowest redox potential am...