Simultaneous occurence of three different valence tautomers in meso-vinyl ruthenium-modified Zn-Porphyrin radical cations

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

Simultaneous occurence of three different valence tautomers in meso-vinyl ruthenium-modified Zn-Porphyrin radical cations

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2013

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Open Access Green

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Chemie

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Journal of the American Chemical Society. 2013, 135(9), pp. 3391-3394. ISSN 0002-7863. eISSN 1520-5126. Available under: doi: 10.1021/ja400673c

Zusammenfassung

The mixed-valent radical cation of a styrylruthenium-modified meso-tetraarylzinc porphyrin forms a mixture of three different valence tautomers (VTs) in CH2Cl2 or 1,2-C2H4Cl2 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.

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540 Chemie

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CHEN, Jing, Evelyn WUTTKE, Walther POLIT, Thomas E. EXNER, Rainer F. WINTER, 2013. Simultaneous occurence of three different valence tautomers in meso-vinyl ruthenium-modified Zn-Porphyrin radical cations. In: Journal of the American Chemical Society. 2013, 135(9), pp. 3391-3394. ISSN 0002-7863. eISSN 1520-5126. Available under: doi: 10.1021/ja400673c

BibTex

@article{Chen2013-03-06Simul-22824,
  year={2013},
  doi={10.1021/ja400673c},
  title={Simultaneous occurence of three different valence tautomers in meso-vinyl ruthenium-modified Zn-Porphyrin radical cations},
  number={9},
  volume={135},
  issn={0002-7863},
  journal={Journal of the American Chemical Society},
  pages={3391--3394},
  author={Chen, Jing and Wuttke, Evelyn and Polit, Walther and Exner, Thomas E. and Winter, Rainer F.}
}

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