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1980 (1)
1Author    JohannW. Buchler, Kiong-Lam Lay, Harald StoppaRequires cookie*
 Title    Metallkomplexe mit Tetrapyrrol-Liganden, XXIV [1] Zur Kenntnis der Platin(IV)-Porphyrine Metal Complexes with Tetrapyrrole Ligands, XXIV [1] On the Knowledge of Platinum(IV) Porphyrins  
 Abstract    The first platinum(IV) porphyrin, dichloromeso-tetra(jo-tolyl)porphinatoplatinum(IV) [Pt(TPP)Cl2**], is prepared by oxidation of the corresponding platinum(II) complex [Pt(TTP)**] with hydrogen peroxide in acidic media and treatment with hydrogen chloride. Pt(TTP)Cl2 is thermally stable up to 200 °C. Electrochemical reduction yields Pt(TTP), presumably by a two-electron step. The platinum-to-porphyrin jr-backbonding known to exist in Pt(TTP) decreases on oxidation to Pt(TTP)Cl2 but does not vanish. An improved synthesis of Pt(TTP) is described. Evidence for the accessibility of Pt(OEP)Cl2 and Pd(TTP)Cl2 is also presented. 
  Reference    Z. Naturforsch. 35b, 433—438 (1980); eingegangen am 7. Januar 1980 
  Published    1980 
  Keywords    Platinum Porphyrins, Palladium Porphyrins, Electronic Absorption Spectra, Electrochemistry of Metalloporphyrins 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0433.pdf 
 Identifier    ZNB-1980-35b-0433 
 Volume    35