A new energetic complex,[Co（3,3？-Hbpt）（Htm）]·H_2O（1,3,3？-Hbpt = 3,5-bis（3-pyridyl）-1H-1,2,4-triazole and H_3tm = trimesic acid）,has been synthesized by hydrothermal reactions and characterized by single...A new energetic complex,[Co（3,3？-Hbpt）（Htm）]·H_2O（1,3,3？-Hbpt = 3,5-bis（3-pyridyl）-1H-1,2,4-triazole and H_3tm = trimesic acid）,has been synthesized by hydrothermal reactions and characterized by single-crystal X-ray diffraction,elementary analysis,IR spectroscopy,thermogravimetric analysis and X-ray powder diffraction. Single-crystal X-ray diffraction indicates that the complex belongs to triclinic system,space group P 1 with a = 10.0911（1）,b = 10.2573（1）,c = 10.6393（1） ？,α = 103.793（2）,β = 101.041（2）,γ = 107.918（3）o,V = 974.9（2） ？~3,Z = 2,D_c = 1.732 g·cm-3,μ = 0.941 mm^（-1）,M_r = 508.31,F（000） = 518,the final R = 0.0523 and wR = 0.0935 with I 〉 2σ（I）. In the title complex,Co（Ⅱ） ions are connected by Htm2-anions generating 1D ladder-like chains which are linked by 3,3？-Hbpt to form 1D cages. In addition,the thermal decomposition of ammonium perchlorate（AP） with complex 1 was explored by differential scanning calorimetry（DSC）. AP is completely decomposed in a shorter time in the presence of complex 1,and the decomposition heat of the mixture is 2.531 kJ·g^（-1）,significantly higher than that of pure AP. By Kissinger＇s method,the ratio of Ea/ln（A） is 11.05 for the mixture,which indicates that complex 1 shows good catalytic activity toward the AP decomposition.展开更多
A new energetic complex, Ni（3,4＇-Hbpt）2（Hoba）2（H20）2 （3,4＇-Hbpt = 3-（3-pyridyl）- 5-（4＇-pyridyl）-l-H-l,2,4-triazole and H2oba = 4,4＇-oxybis（benzoic acid））, has been synthesized by hydrothermal reactio...A new energetic complex, Ni（3,4＇-Hbpt）2（Hoba）2（H20）2 （3,4＇-Hbpt = 3-（3-pyridyl）- 5-（4＇-pyridyl）-l-H-l,2,4-triazole and H2oba = 4,4＇-oxybis（benzoic acid））, has been synthesized by hydrothermal reaction and characterized by elemental analysis, IR spectroscopy, single-crystal X-ray diffraction, thermogravimetric analyses and X-ray powder diffraction. Single-crystal X-ray diffraction analysis indicates that the complex belongs to the monoclinic system, space group P2j/c with a = 10.2357（9）, b = 24.594（2）, c = 10.4225（9）/k, β = 114.0110（10）°, V = 2396.7（4） A3, Dc = 1.460 g/cm3,μ = 0.482 mm-1, Mr = 1053.63, F（000） = 1088, Z = 2, the final R = 0.0358 and wR = 0.0973 with I 〉 2σ（I）. Both 3,4＇-Hbpt and H2oba ligands adopt monodentate modes linking one Ni（II） ion to form a 0D motif. Furthermore, the 0D motifs are linked into a 3D supramolecular architecture with hydrogen bonds. In addition, the catalytic performance for thermal decomposition of the efficacy of ammonium perchlorate （AP） is explored by differential scanning calorimetry （DSC）, which indicates that the complex is a good candidate for a promoter of the thermal decomposition of ammonium perchlorate.展开更多
GThe title compound was synthesized by reaction of Cu(ClO4)2, picolinic acid and carbamide in C2H5OH/CH3CN solution, and characterized by single crystal X ray diffraction. It crystallizes in the orthorhombic system, s...GThe title compound was synthesized by reaction of Cu(ClO4)2, picolinic acid and carbamide in C2H5OH/CH3CN solution, and characterized by single crystal X ray diffraction. It crystallizes in the orthorhombic system, space group Pbcawith a=14.0481(8), b=9.0130(5), c=18.626(1)?, V=2358.3(2)?3, Z=4, Dx=1.771g·cm-3, μ=1.235mm-1 and F(000)=1276. The final R factor is 0.0440 for 1434 observed reflections. The X ray analysis revealed that the copper?atom iscoordinated by two picolinic ligands in the equatorial plane, while the two oxygen atoms of perchlorate occupy the axial positions of octahedron with lengthened Cu O distances, resulting in a 4+2 elongated octahedral environment. In the compound, there also exist two protonated carbamide cations for charge balance. CCDC: 195354.展开更多
基金Supported by the National Natural Science Foundation of China(No.21263019 and 21467022)
文摘A new energetic complex,[Co（3,3？-Hbpt）（Htm）]·H_2O（1,3,3？-Hbpt = 3,5-bis（3-pyridyl）-1H-1,2,4-triazole and H_3tm = trimesic acid）,has been synthesized by hydrothermal reactions and characterized by single-crystal X-ray diffraction,elementary analysis,IR spectroscopy,thermogravimetric analysis and X-ray powder diffraction. Single-crystal X-ray diffraction indicates that the complex belongs to triclinic system,space group P 1 with a = 10.0911（1）,b = 10.2573（1）,c = 10.6393（1） ？,α = 103.793（2）,β = 101.041（2）,γ = 107.918（3）o,V = 974.9（2） ？~3,Z = 2,D_c = 1.732 g·cm-3,μ = 0.941 mm^（-1）,M_r = 508.31,F（000） = 518,the final R = 0.0523 and wR = 0.0935 with I 〉 2σ（I）. In the title complex,Co（Ⅱ） ions are connected by Htm2-anions generating 1D ladder-like chains which are linked by 3,3？-Hbpt to form 1D cages. In addition,the thermal decomposition of ammonium perchlorate（AP） with complex 1 was explored by differential scanning calorimetry（DSC）. AP is completely decomposed in a shorter time in the presence of complex 1,and the decomposition heat of the mixture is 2.531 kJ·g^（-1）,significantly higher than that of pure AP. By Kissinger＇s method,the ratio of Ea/ln（A） is 11.05 for the mixture,which indicates that complex 1 shows good catalytic activity toward the AP decomposition.
基金Supported by the National Natural Science Foundation of China(No.21263019)
文摘A new energetic complex, Ni（3,4＇-Hbpt）2（Hoba）2（H20）2 （3,4＇-Hbpt = 3-（3-pyridyl）- 5-（4＇-pyridyl）-l-H-l,2,4-triazole and H2oba = 4,4＇-oxybis（benzoic acid））, has been synthesized by hydrothermal reaction and characterized by elemental analysis, IR spectroscopy, single-crystal X-ray diffraction, thermogravimetric analyses and X-ray powder diffraction. Single-crystal X-ray diffraction analysis indicates that the complex belongs to the monoclinic system, space group P2j/c with a = 10.2357（9）, b = 24.594（2）, c = 10.4225（9）/k, β = 114.0110（10）°, V = 2396.7（4） A3, Dc = 1.460 g/cm3,μ = 0.482 mm-1, Mr = 1053.63, F（000） = 1088, Z = 2, the final R = 0.0358 and wR = 0.0973 with I 〉 2σ（I）. Both 3,4＇-Hbpt and H2oba ligands adopt monodentate modes linking one Ni（II） ion to form a 0D motif. Furthermore, the 0D motifs are linked into a 3D supramolecular architecture with hydrogen bonds. In addition, the catalytic performance for thermal decomposition of the efficacy of ammonium perchlorate （AP） is explored by differential scanning calorimetry （DSC）, which indicates that the complex is a good candidate for a promoter of the thermal decomposition of ammonium perchlorate.
文摘GThe title compound was synthesized by reaction of Cu(ClO4)2, picolinic acid and carbamide in C2H5OH/CH3CN solution, and characterized by single crystal X ray diffraction. It crystallizes in the orthorhombic system, space group Pbcawith a=14.0481(8), b=9.0130(5), c=18.626(1)?, V=2358.3(2)?3, Z=4, Dx=1.771g·cm-3, μ=1.235mm-1 and F(000)=1276. The final R factor is 0.0440 for 1434 observed reflections. The X ray analysis revealed that the copper?atom iscoordinated by two picolinic ligands in the equatorial plane, while the two oxygen atoms of perchlorate occupy the axial positions of octahedron with lengthened Cu O distances, resulting in a 4+2 elongated octahedral environment. In the compound, there also exist two protonated carbamide cations for charge balance. CCDC: 195354.
