%0 Journal Article %1 Kaim.2002b %A Kaim, Wolfgang %A Schwederski, Brigitte %A Dogan, Akbey %A Fiedler, Jan %A Kuehl, Christopher J. %A Stang, Peter J. %D 2002 %J Inorganic Chemistry %K anthracenediyl bipyridine bispyridylethene electrochem electron ethylphosphine metalla multielectron oxidn oxidn;platinum rectangle redn reservoir supramol tetranuclear %N 15 %P 4025--4028 %R 10.1021/ic020122n %T Metalla-Supramolecular Rectangles as Electron Reservoirs for Multielectron Reduction and Oxidation %V 41 %X The electron-transfer capacity of mol. rectangle ions [PtII4(PEt3)8(m-anth2-)2(m-L)2]4+ with anth2- = anthracene-1,8-diyl and L = 4,4'-bipyridine (bp) or 1,2-bis(4-pyridyl)ethene (bpe) was studied in acetonitrile and dichloromethane using cyclic voltammetry, EPR, and UV-visible-near-IR spectroelectrochem. The compds. can be reversibly reduced, 1st in a two-electron process and then via two closely sepd. 1-electron steps. Oxidn. was also possible at rather low potentials in a reversible two-electron step, followed by an electrochem. irreversible process. The spectroscopic results indicate redn. at the neutral acceptor ligands L and oxidn. at the formally dianionic anthracene clips. In contrast, the prototypical mol. square [Pt(triphos)(μ-bp)]48+ undergoes only irreversible redn. [on SciFinder(R)]

@article{Kaim.2002b, abstract = {The electron-transfer capacity of mol. rectangle ions [PtII4(PEt3)8(\textgreek{m}-anth2-)2(\textgreek{m}-L)2]4+ with anth2- = anthracene-1,8-diyl and L = 4,4'-bipyridine (bp) or 1,2-bis(4-pyridyl)ethene (bpe) was studied in acetonitrile and dichloromethane using cyclic voltammetry, EPR, and UV-visible-near-IR spectroelectrochem. The compds. can be reversibly reduced, 1st in a two-electron process and then via two closely sepd. 1-electron steps. Oxidn. was also possible at rather low potentials in a reversible two-electron step, followed by an electrochem. irreversible process. The spectroscopic results indicate redn. at the neutral acceptor ligands L and oxidn. at the formally dianionic anthracene clips. In contrast, the prototypical mol. square {[Pt(triphos)(μ-bp)]4}8+ undergoes only irreversible redn. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Kaim, Wolfgang and Schwederski, Brigitte and Dogan, Akbey and Fiedler, Jan and Kuehl, Christopher J. and Stang, Peter J.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/29414a055a9dfc88e3af7c3ebabce31b7/huebleriac}, doi = {10.1021/ic020122n}, interhash = {d2029645401c859dd951ed5f7f0ad56a}, intrahash = {9414a055a9dfc88e3af7c3ebabce31b7}, issn = {0020-1669}, journal = {Inorganic Chemistry}, keywords = {anthracenediyl bipyridine bispyridylethene electrochem electron ethylphosphine metalla multielectron oxidn oxidn;platinum rectangle redn reservoir supramol tetranuclear}, number = 15, pages = {4025--4028}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {Metalla-Supramolecular Rectangles as Electron Reservoirs for Multielectron Reduction and Oxidation}, volume = 41, year = 2002 }