1,3-Adamantanedicarboxylic Acid and 1,3-Adamantanediacetic Acid

The structure of 1,3-adamantanedicarboxylic acid (tricyclo[3.3.1.1^3,7]decane-1,3-dicarboxylic acid), C₁₂H₁₆O₄, consists of hydrogen-bonded chains of molecules related by a glide plane. In 1,3-adamantanediacetic acid (tricyclo[3.3.1.1^3,7]decane-1,3-diacetic acid), C₁₄H₂₀O₄, the asymmetric unit comprises two hydrogen-bonded molecules and these bimolecular units are in turn linked by hydrogen bonds across centres of inversion to give chains.

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