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μ‐Oxodiiron( III ) Complexes of Porphycenes

1994; Wiley; Volume: 33; Issue: 7 Linguagem: Inglês

10.1002/anie.199407361

1521-3773

Michael Lausmann, Ingeborg Zimmer, Johann Lex, Heiko Lueken, Karl Wieghardt, Emanuel Vogel,

Metal-Catalyzed Oxygenation Mechanisms

Far-reaching analogies between μ-oxodiiron(III) complexes of porphycenes and porphyrins with regard to physical, chemical, and structural properties are revealed by investigations of the new metallopor-phycenes 1 (R  nPr, tBu). These are obtained by using standard methods for porphyrin chemistry. The Fe-O-Fe angle in 1 (R  nPr) differs widely (145°) from those of the metalloporphyrins (161–180°) and that of 1 (R  tBu; 179°) as a result of reduced steric interactions.