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Cover Picture (Angew. Chem. Int. Ed. Engl. 7/1994)
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199406991
Subject(s) - cover (algebra) , chemistry , citation , art history , stereochemistry , art , computer science , library science , engineering , mechanical engineering
The cover picture shows in the foreground the oxygen‐bridged binuclear iron(IV) complex μ‐oxo‐bis‐[(octaethylcorrolato)iron(IV)] (N green, O blue, Fe pink, ethyl substitutents have been omitted), which may bring about a renaissance of the metallocorroles. The fact that corroles stabilize metals in unusual oxidation states as trianionic ligands has now been proven by E. Vogel et al.—see pp. 731–735—with some iron(IV) corrole complexes, formed from the stable, diiron complex shown, which crystallizes as black rhombuses. The question mark in the background emphasizes the uncertainity associated with the unequivocal assignment of the oxidation state to the metal center in complexes with “non‐innocent” ligands such as corroles.