Acta Cryst. (2004). E60, m441-m443  [ doi:10.1107/S1600536804006014 ]

Hydrogen-bonding motifs in the solid-state structure of ferroceneboronic acid

C. Bresner, S. Aldridge, I. A. Fallis and L.-L. Ooi

Abstract: At 180 K, the crystal structure of ferroceneboronic acid, [Fe(C₅H₅)(C₅H₆BO₂)], consists of centrosymmetric [FcB(OH)₂]₂ dimers [Fc is (⁵-C₅H₅)Fe(⁵-C₅H₄)], formed by a pair of complementary O-HO hydrogen-bonding interactions [OH 1.97 Å and OO 2.806 (3) Å]. The remaining two O-bound H atoms per [FcB(OH)₂]₂ moiety serve to link the dimeric units to adjacent dimers in a criss-cross fashion, very similar to that between hydrogen-bonded chains in solid Fe[⁵-C₅H₄B(OH)₂]₂.

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