The low-temperature (130 K) structure of the 1:1 proton-transfer compound of brucine with toluene-4-sulfonic acid (systematic name: 2,3-dimethoxy-10- oxostrychnidinium toluene-4-sulfonate trihydrate), C23H 27N2O4+·C7H 7O3S-3H2O, has been determined. The asymmetric unit contains two cations, two anions and six molecules of water. Brucinium cations form the familiar undulating head-to-tail ribbon structures, which associate with the toluene-4-sulfonate anions and the water molecules in the interstitial cavities through hydrogen-bonding associations involving all available donor and acceptor atoms on all species. The result is a framework polymer structure.
|Number of pages||3|
|Journal||Acta Crystallographica Section E: Structure Reports Online|
|Issue number||Part 8|
|Publication status||Published - 1 Aug 2005|