and benzonitrile were removed in uacuo, and the residue sublimed at 80--85"C/0.01 torr, yielding 56 mg of (7f) ['H-NMR (CCI4/CDCl3 10 : 1): 6 = 3.66 (s, 3 H), 7. 2-7.7 (m, 9 H)].
Aren-Diolelin-Ruthenium(0j-Komplexe sind nach der ,,Grignard-Methode" erhalten worden: J . Miiller, C . G . Kreiter, B. Mertschenk, S. Schmitt, Chem. Ber. 108, 273 (1975); zit. Lit. 7: A . Albright, R. Hoffmann, unveroffentlichte Ergebnisse; vgl. auch Chem. Ber. 111, 1578 (1978). Von Eisenkomplexen C6R6FeL2 ( L = C O , PR3 etc.) sind bisher drei bekannt: C6Me6Fe(C0)2 [S. R. Weber, H. H. Brintzinger, J. Organomet.
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