Kristallstrukturen ferrocenhaltiger 1,3‐Diketon‐ und Enaminoketon‐Derivate

Crystal Structures of 1,3‐Diketone and Enaminoketone Derivatives Containing Ferrocene The crystal structures of the 1,3‐diketones 2,4‐dioxo‐4‐ferrocenyl‐butanoic acid ethylester ( 1 ) und ferrocene‐1,1′‐bis(2,4‐dioxo‐butanoic acid ethylester) ( 2 ) have been determined. Through conversion of 1 by Cu(ac)₂ · H₂O in THF the copper(II) complex aqua‐bis(3‐ethoxycarbonyl‐1‐ferrocenyl‐propane‐1,3‐dionato) copper(II) ( 1 a ) has been obtained, which is structurally characterized too. The structures of the enaminoketones 2,2′‐(1,4‐phenylenediamino)‐bis(4‐ferrocenyl‐4‐oxo‐but‐2‐enoic acid ethylester) ( 3 ) and ferrocene‐1,1′‐bis(4‐oxo‐2‐phenylamino‐but‐2‐enoic acid ethylester) ( 4 ) have been determined by X‐ray analysis as well. Electrochemical studies completed the structural investigations.