Acta Cryst. (2004). E60, m288-m290  [ doi:10.1107/S1600536804002685 ]

(S,S_p)-2-[4-(1-Methylethyl)-4,5-dihydrooxazol-1-yl]ferrocenecarboxylic acid

P. Stepnicka and I. Císarová

Abstract: Chiral oxazolinyl-modified ferrocenecarboxylic acid, (S,S_p)-[Fe{⁵-C₅H₃(CO₂H-1)(C₆H₁₀NO-2)}(⁵-C₅H₅)] or [Fe(C₅H₅)(C₁₂H₁₄NO₃)], crystallizes as a molecular compound, featuring an intramolecular O-HN hydrogen bond between the carboxyl hydroxy group and oxazoline N atom, with an ON separation of 2.559 (3) Å. The ferrocene substituents are rotated only slightly from the plane of their parent cyclopentadienyl ring: 7.65 (17) (oxazoline) and 2.3 (3)° (carboxyl).

Online 7 February 2004

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