Author： Öztürk Ramazan Güner Sadik Aktaş Bekir Gül Ahmet
Publisher： Taylor & Francis Ltd
ISSN： 1061-0278
Source： Supramolecular Chemistry, Vol.17, Iss.3, 2005-05, pp. : 233-241
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Abstract
Supramolecular porphyrazines with eight pyridine donor groups bound through ethylthio ester bridges on the periphery have been prepared. The pyridine donors were quaternized with iodomethane to octacationic porphyrazine. The nonanuclear supramolecular porphyrazine was prepared by the coordination of peripheral pyridine donors with VO(acac)2. The paramagnetic nonanuclear structure was studied in powder and in solution form by EPR. EPR studies together with the other spectral data confirmed the presence of identical pyridine-coordinated VO(acac)2 paramagnetic centers attached to the peripheral positions of the porphyrazine core.
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