The crystal structures of the acid salts of some monobasic acids. Part XIII. Potassium hydrogen dianisate (di-p-methoxybenzoate)
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 2106-2108
- https://doi.org/10.1039/j19680002106
Abstract
The hydrogen dianisates of potassium and of rubidium MH(O2C·C6H4·OMe)2(M = K or Rb) are isomorphous. The crystal structure of the potassium salt, which has four molecules in the unit cell with a= 35·77, b= 7·05, and c= 6·16 Å, belonging to the space group Pbcn, has been determined, and refined to R= 15% for 1 200 independent reflexions. The structure is that of a Type A acid salt, the two anisate residues being connected by a hydrogen bond, across a two-fold axis, with OHO distance 2·476 ± 18 Å. The structure is compared with that of free anisic acid.Keywords
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