Author/Authors :
Birame Diop, Mouhamadou Laboratoire de Chimie Minérale et Analytique (LACHIMIA) - Département de Chimie - Faculté des Sciences et Techniques - Université Cheikh Anta Diop, Dakar, Senegal , Diop, Libasse Laboratoire de Chimie Minérale et Analytique (LACHIMIA) - Département de Chimie - Faculté des Sciences et Techniques - Université Cheikh Anta Diop, Dakar, Senegal , Plasseraud, Laurent ICMUB UMR 6302 - Université de Bourgogne, Faculté des Sciences, France , Cattey, Hélène ICMUB UMR 6302 - Université de Bourgogne, Faculté des Sciences, France
Abstract :
Single crystals of the title molecular salt, C4H7N2+·HC2O4−·2H2O, were isolated from the reaction of 2-methyl-1H-imidazole and oxalic acid in a 1:1 molar ratio in water. In the crystal, the cations and anions are positioned alternately along an infinite [010] ribbon and linked together through bifurcated N—H⋯(O,O) hydrogen bonds. The water molecules of crystallization link the chains into (10-1) bilayers, with the methyl groups of the cations organized in an isotactic manner.
Keywords :
hydrogen bonds , hydrogen oxalate , monosubstituted imidazolium , organic salt , crystal structure
