1,4-dimethoxy-2-naphthoic acid.
The title compound, C13H12O4, crystallized in the centrosymmetric space group P2(1)/c and exhibits cyclic dimer hydrogen bonding about a center of symmetry. The carboxylic H atom is modeled as disordered over two half-occupancy sites. Overall, the hydrogen bonding is little affected by the methoxyl groups and is very similar to that in 2-naphthoic acid.
Blackburn
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AC
Department of Chemistry, Ohio State University, Columbus 43210, USA.
Gerkin
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D002264:Carboxylic Acids / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D015394:Molecular Structure; D009281:Naphthalenes / Q000737:chemistry*
C110414:1,4-dimethoxy-2-naphthoic acid; D002264:Carboxylic Acids; D009281:Naphthalenes