The title compound （C12H15NO13S, Mr = 413.31） was synthesized by the nitration of napthalene-1,4-dicarboxylate acid in mixed nitric and sulfuric acids. It crystallizes in monoclinic, space group P2 1/c with a = 8.10...The title compound （C12H15NO13S, Mr = 413.31） was synthesized by the nitration of napthalene-1,4-dicarboxylate acid in mixed nitric and sulfuric acids. It crystallizes in monoclinic, space group P2 1/c with a = 8.100（1）, b = 24.369（3）, c = 8.634（1） A, β = 105.380（2）°, V = 1643.1（4） A^3, Z = 4, Dc = 1.671 g/cm^3, F（000） = 856, μ（MoKa） = 0.273 mm^- 1, T = 294（2） K, the final R = 0.0400 and wR = 0.1021 for 2866 observed reflections with I 〉 2σ（I）. In this crystal there exist a number of H-bonds which link the molecules to form a three-dimensional infinite network structure. The thermal decomposition of the title compound was investigated by using TG-DTG and DSC techniques.展开更多
A new compound （CHZ）（HTNPG）·0.5H2O was synthesized by mixing carbohydrazide（CHZ） and trinitrophloroglucinol（TNPG） and characterized by elemental analysis and Fourier transform infrared （FTIR） spectrum. ...A new compound （CHZ）（HTNPG）·0.5H2O was synthesized by mixing carbohydrazide（CHZ） and trinitrophloroglucinol（TNPG） and characterized by elemental analysis and Fourier transform infrared （FTIR） spectrum. Its crystal structure was determined by single crystal X-ray diffraction analysis. The crystal belongs to triclinic system, P1 space group, with a=0.45578（9） nm, b=1.0142（2） nm, c=1.3041（3） nm, α=86.53（3）°, β=99.56（3）°, γ=81.94（3）°, V= 0.5958（2） nm^3, Z=2, Dc=2.008 g/cm^3, R1=0.0476, and wR2=0.1139. The compound is a di-substituted salt of TNPG, which consists of a cation （CHZ）^2＋ and an anion （HTNPG）^2-. The thermal analysis of the compound was studied by means of differential scanning calorimetry（DSC） and thermogravimetry-derivative thermogravimetry（TG-DTG）. Under nitrogen atmosphere at a heating rate of 10 ℃/min, the thermal decomposition of the compound contained one endothermic process of dehydrating stage and two intense exothermic decomposition processes in a temperature range of 140--232 ℃ on the DSC trace. The decomposition products of the title compound are nearly gaseous products. The existing complicated hydrogen bond networks and electrostatic attraction between （CHZ）^2＋ and （HTNPG）^2- enhance the thermal stability of the title compound.展开更多
基金This work was supported by the NNSFC (No. 20471008)
文摘The title compound （C12H15NO13S, Mr = 413.31） was synthesized by the nitration of napthalene-1,4-dicarboxylate acid in mixed nitric and sulfuric acids. It crystallizes in monoclinic, space group P2 1/c with a = 8.100（1）, b = 24.369（3）, c = 8.634（1） A, β = 105.380（2）°, V = 1643.1（4） A^3, Z = 4, Dc = 1.671 g/cm^3, F（000） = 856, μ（MoKa） = 0.273 mm^- 1, T = 294（2） K, the final R = 0.0400 and wR = 0.1021 for 2866 observed reflections with I 〉 2σ（I）. In this crystal there exist a number of H-bonds which link the molecules to form a three-dimensional infinite network structure. The thermal decomposition of the title compound was investigated by using TG-DTG and DSC techniques.
基金Supported by the National Natural Science Foundation of China(No.10776002) China Academy of Engineering Physics
文摘A new compound （CHZ）（HTNPG）·0.5H2O was synthesized by mixing carbohydrazide（CHZ） and trinitrophloroglucinol（TNPG） and characterized by elemental analysis and Fourier transform infrared （FTIR） spectrum. Its crystal structure was determined by single crystal X-ray diffraction analysis. The crystal belongs to triclinic system, P1 space group, with a=0.45578（9） nm, b=1.0142（2） nm, c=1.3041（3） nm, α=86.53（3）°, β=99.56（3）°, γ=81.94（3）°, V= 0.5958（2） nm^3, Z=2, Dc=2.008 g/cm^3, R1=0.0476, and wR2=0.1139. The compound is a di-substituted salt of TNPG, which consists of a cation （CHZ）^2＋ and an anion （HTNPG）^2-. The thermal analysis of the compound was studied by means of differential scanning calorimetry（DSC） and thermogravimetry-derivative thermogravimetry（TG-DTG）. Under nitrogen atmosphere at a heating rate of 10 ℃/min, the thermal decomposition of the compound contained one endothermic process of dehydrating stage and two intense exothermic decomposition processes in a temperature range of 140--232 ℃ on the DSC trace. The decomposition products of the title compound are nearly gaseous products. The existing complicated hydrogen bond networks and electrostatic attraction between （CHZ）^2＋ and （HTNPG）^2- enhance the thermal stability of the title compound.
