engleski

Methyl-1'-carboxy-1-ferrocenebutyrate

Compound (I), methyl-1’ -carboxy-1-ferrocenebutyrate, C16H18FeO4, contains a heteroannularly substituted ferrocene unit, with the two substituents methyl butyrate and a carboxyl group both being capable of forming O H   O hydrogen bonds. The keto ester group is stereochemically hindered by the trimethylene spacer and does not participate in intramolecular hydrogen bond formation. Instead, the carboxy groups form self-complementary intermolecular hydrogen bonds (O   O 2.650 (2) &Aring ; ), which join the molecules into centrosymmetric dimmers with a graph set descriptor R22(8).

ferrocene; acid; ester; hydrogen bond

pages m610-m611