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1978 (1)
1975 (1)
1Author    Requires cookie*
 Title    Metallkomplexe mit Tetrapyrrol-Liganden, XIV1 * Eisenporphodimethene: Sterisch und elektronisch modifizierte Häme und Hämine  
 Abstract    M etal Complexes of T etrapyrrole Ligands, X IV 1 Iro n P o rp h o d im eth en es: Sterically and E lectronically Modified H em es an d H em ins J o h a n n W. B u c h l e r u n d K . L am L a y Iron An air-stable porphodimethene, namely a, y-dimethyl-a, y-dihydrooctaethylporphyrin [H 2(OÄPMe2)*; (1)] is metalated with Fe(CO)5/I2 in toluene to yield an air-stable binuclear iron(III) porphodimethene, /i-oxobis(a, y-dimethyl-a, 
  Reference    (Z. Naturforsch. 30b, 385—392 [1975]; eingegangen am 27. Februar 1975) 
  Published    1975 
  Keywords    Porphyrins, Iron Porphodimethenes, Hemes, Hemins 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0385.pdf 
 Identifier    ZNB-1975-30b-0385 
 Volume    30 
2Author    JohannW. Buchler, Wolfgang Kokisch, PaulD. Smith, Bernhard TonnRequires cookie*
 Title    Metallkomplexe mit Tetrapyrrol-Liganden, XIX [1] Synthese und elektrochemische Charakterisierung der Kohlenmonosulfid-Metalloctaethylporphyrine mit Eisen(II) oder Osmium(II) im Zentrum. Ein Beitrag zur "Bathochromie-Regel"  
 Abstract    The preparation and spectroscopic characterization of thiocarbonyl metalloporphyrins M(OEP)CS(L') (e.g. 2e: M = Fe, L' = Py, le: M = Os, L' = Py** are described. Especially noteworthy is the existence of a pentacoordinate, diamagnetic, air-stable heme Fe(OEP)CS (2f: M = Fe, no L'). A linear correlation of the a-band frequencies (expressed as Va) in the optical spectrum and the metal(II/IH) redox potentials (E1/2) taken from cyclic voltam-metry experiments suggests (Abb. 3) that in complexes of the type M(OEP)LL' (1, 2) K is bathochromically shifted as the 7r-acceptor capacity of L increases ("Rule of Batho-chromism"). The strong 71-acceptor capacity of carbon monosulphide renders the attack of dioxygen to the thiocarbonyl heme unfavourable; O2 and CS seem to be comparable in their jr-acceptor strength. 
  Reference    Z. Naturforsch. 33b, 1371—1380 (1978); eingegangen am 29. Juni 1978 
  Published    1978 
  Keywords    Hemes, Osmium Porphyrins, Thiocarbonyl Complexes, Electrochemistry, Electronic Absorption Spectra 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-1371.pdf 
 Identifier    ZNB-1978-33b-1371 
 Volume    33