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Crystals 2012, 2(1), 34-42; doi:10.3390/cryst2010034
Article

Molecular and Crystal Structure of a New High Energy Density Material: Aminoguanidinium-styphnate, [H2NNHC(NH2)2]2[C6HO2(NO2)3]

1, 2, 1 and 2,*
Received: 2 September 2011; in revised form: 20 December 2011 / Accepted: 26 December 2011 / Published: 4 January 2012
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Abstract: The title compound [H2NNHC(NH2)2]2[C6HO2(NO2)3] (2) was prepared in 85% yield by treatment of sodium styphnate with 2 equivalents of aminoguanidinium nitrate, followed by crystallization from aqueous solution. Compound 2 crystallizes in the triclinic space group Pī with unit cell dimensions a = 6.7224(3) Å, b = 10.7473(4) Å, c = 11.9604(5) Å, α = 113.212(4)°, β = 90.579(3)°, γ = 99.815(3)°, V = 779.68(6) Å3, Z = 2. In the solid state structure of 2, no water of crystallization is present. Bond angles within the aromatic ring of the styphnate anion indicate a significant distortion with larger angles (122.04(18)–125.96(18) Å) at the carbons bearing the nitro groups, and smaller ones (113.30(17) and 114.07(17) Å) at the C-O carbon atoms. The crystal structure of 2 consists of layers formed by an extensive network of N-H...O hydrogen bonds between NH2 groups of the aminoguanidinium cation and the negatively charged oxygens of the styphnate anion. The layers are again interconnected by N-H...N hydrogen bonds between neighboring aminoguanidinium cations.
Keywords: high density energy materials; styphnates; aminoguanidinium styphnate; hydrogen bonds high density energy materials; styphnates; aminoguanidinium styphnate; hydrogen bonds
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Deblitz, R.; Hrib, C.G.; Plenikowski, G.; Edelmann, F.T. Molecular and Crystal Structure of a New High Energy Density Material: Aminoguanidinium-styphnate, [H2NNHC(NH2)2]2[C6HO2(NO2)3]. Crystals 2012, 2, 34-42.

AMA Style

Deblitz R, Hrib CG, Plenikowski G, Edelmann FT. Molecular and Crystal Structure of a New High Energy Density Material: Aminoguanidinium-styphnate, [H2NNHC(NH2)2]2[C6HO2(NO2)3]. Crystals. 2012; 2(1):34-42.

Chicago/Turabian Style

Deblitz, Raik; Hrib, Cristian G.; Plenikowski, Georg; Edelmann, Frank T. 2012. "Molecular and Crystal Structure of a New High Energy Density Material: Aminoguanidinium-styphnate, [H2NNHC(NH2)2]2[C6HO2(NO2)3]." Crystals 2, no. 1: 34-42.

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