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Simultaneous occurrence of three different valence tautomers in meso -vinylruthenium-modified zinc porphyrin radical cations

Journal of the American Chemical Society, ISSN: 0002-7863, Vol: 135, Issue: 9, Page: 3391-3394
2013
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Article Description

The mixed-valent radical cation of a styrylruthenium-modified meso-tetraarylzinc porphyrin forms a mixture of three different valence tautomers (VTs) in CHCl or 1,2-CH Cl solutions. One of these VTs has the charge and spin delocalized over the porphyrin and the styrylruthenium moieties, while the other two display charge and spin localization on just one of the different redox sites. The relative amounts of the three different VTs were determined by EPR and IR spectroscopies at variable temperatures, while delocalization in the ground state was confirmed by DFT calculations. © 2013 American Chemical Society.

Bibliographic Details

Chen, Jing; Wuttke, Evelyn; Polit, Walther; Exner, Thomas; Winter, Rainer F

American Chemical Society (ACS)

Chemical Engineering; Chemistry; Biochemistry, Genetics and Molecular Biology

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