in petroleum ether addn. of azo compd. to Fe-compd. in petroleum ether (-30°C), standing at room temp. (24 h); filtn., concn. and chromy. on silica gel, elution with petroleum ether gives traces of Fe3(CO)12 and triiron compd., then elution with petroleum ether/CH2Cl2 gives semidine complex;
Murahashi; Horiie
Journal of the American Chemical Society, 1956 , vol. 78, p. 4816
Chem.Abstr., 1960 , p. 24785
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Horiie
Nippon Kagaku Zasshi, 1958 , vol. 79, p. 499,503
Chem.Abstr., 1960 , p. 4607