Search results for "hexamethylguanidinium"
showing 3 items of 3 documents
CCDC 112513: Experimental Crystal Structure Determination
1998
Related Article: H.Meier, M.Buss, M.Adam|1996|Liebigs Ann.||2131|doi:10.1002/jlac.199619961227
CCDC 867308: Experimental Crystal Structure Determination
2016
Related Article: I. Tiritiris, W. Kantlehner|2015|Acta Crystallogr.,Sect.E:Cryst.Commun.|71|o1076|doi:10.1107/S2056989015024317
Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrate
2015
The title hydrated salt, C7H18N3+·OCN−.1.5H2O, was synthesized starting fromN,N,N′,N′,N′′,N′′-hexamethylguanidinium chloride by a twofold anion-exchange reaction. The asymmetric unit contains two cations, two cyanate anions and three water molecules. One cation shows orientational disorder and two sets of N-atom positions were found related by a 60° rotation, with an occupancy ratio of 0.852 (6):0.148 (6). The C—N bond lengths in both guanidinium ions range from 1.329 (2) to 1.358 (10) Å, indicating double-bond character, pointing towards charge delocalization within the NCN planes. Strong O—H...N hydrogen bonds between the crystal water molecules and the cyanate ions and strong O—H...O hyd…