Molecular and Crystal Structure of a New High Energy Density Material: Aminoguanidinium-styphnate, [H2NNHC(NH2)2]2[C6HO2(NO2)3]
作者： Raik Deblitz , Cristian G. Hrib , Georg Plenikowski , Frank T. Edelmann
DOI: 10.3390/CRYST2010034
关键词: Molecular geometry 、 Triclinic crystal system 、 Hydrogen bond 、 Ring (chemistry) 、 Aqueous solution 、 Crystallography 、 Crystallization 、 Water of crystallization 、 Crystal structure 、 Chemistry
摘要: The title compound [H2NNHC(NH2)2]2[C6HO2(NO2)3] (2) was prepared in 85% yield by treatment of sodium styphnate with 2 equivalents aminoguanidinium nitrate, followed crystallization from aqueous solution. Compound crystallizes the triclinic space group Pī unit cell dimensions a = 6.7224(3) A, b 10.7473(4) c 11.9604(5) α 113.212(4)°, β 90.579(3)°, γ 99.815(3)°, V 779.68(6) A3, Z 2. In solid state structure 2, no water is present. Bond angles within aromatic ring anion indicate significant distortion larger (122.04(18)–125.96(18) A) at carbons bearing nitro groups, and smaller ones (113.30(17) 114.07(17) C-O− carbon atoms. crystal consists layers formed an extensive network N-H...O hydrogen bonds between NH2 groups cation negatively charged oxygens anion. are again interconnected N-H...N neighboring cations.
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