in tetrahydrofuran; hexane under N2, addn. of Fe-compound in THF to ((Z)-C8H14)Cr(CO)5 in hexane at 20°C, stirred for 1 h; evapn. to dryness, dissolved in ether, concd., overnight at 4°C; elem. anal.;

KO-t-Bu in tetrahydrofuran addn. of KO-t-Bu to the Fe compd. and S compd. in THF (inert atmosphere) and stirring for 18 h at 20°C; filtn., evapn. (vacuum), dissolving in petroleum ether, concg. and crystn. at -28°C; elem. anal.;

in tetrahydrofuran; hexane under N2, addn. of Fe-compound in THF to ((Z)-C8H14)Cr(CO)5 in hexane at 20°C, stirred for 1 h; evapn. to dryness, dissolved in ether, concd., overnight at 4°C; elem. anal.;