Platinum(II) binds to 21,23-ditelluraporphyrinforming as ide-on complex,w hich can be easily transformed into an aromatic metallaporphyrin,t hat is, 21-platina-23-telluraporphyrin, with ap latinacyclopentadiene unit built in the porphyrin skeleton in place of one pyrrole ring. The central platinum(II) ion with aC CNTes quare-planarc oordination sphere can be oxidized to platinum(IV) by chlorine, bromine, methyl iodideora llyl chloridet oy ield octahedral complexes. All platinatelluraporphyrins show dynamic behaviori nvolving the platinum ion coordination sphere fluxionality and the porphyrin skeleton deformation, both in-plane and outof-plane, as demonstrated by 1 HNMR spectroscopy.
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