Dempster-Rivett, K. J., Main, L., Nicholson, B. K. & Denny, W. A. (2007). 2-(1,4-Dioxo-1,4-dihydro-2-naphthyl)-2-methylpropanoic acid. Acta Crystallographica Section E, 63(11), 1-9.
Permanent Research Commons link: http://hdl.handle.net/10289/2686
The sterically crowded title compound, C₁₄H₁₂O₄, crystallizes as centrosymmetric hydrogen-bonded dimers involving the carboxyl groups. The naphthoquinone ring system is folded by 11.5 (1)° about a vector joining the 1,4-C atoms, and the quinone O atoms are displaced from the ring plane, presumably because of steric interactions with the bulky substituent.
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