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Electrostatic Site Attachment of Divalent Counterions to Rodlike Ruthenium(II) Coordination Polymers Characterized by EPR Spectroscopy


  • This work was supported by the Deutsche Forschungsgemeinschaft (Schwerpunktprogramm 1051 “High-Field EPR in Biology, Chemistry, and Physics”). We thank Manfred Schmidt for helpful discussions and Christian Bauer for technical support.


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Subnanosecond ion-pair lifetimes have been observed for the electrostatic attachment of divalent spin-carrying counterions to oppositely charged, rodlike RuII coordination polymers in solution. Continuous wave (CW) EPR and double electron-electron resonance (DEER) spectroscopy show that the spatial distribution of the divalent counterions reflects the spatial distribution of charges on the polyion (see schematic representation).

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