Molecular Structure of Aminoguanidine Sulfate Monohydrate |
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| Authors: | CHEN Hong-yan ZHANG Tong-lai QIAO Xiao-jing YANG Li and SHAO Feng-lei |
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| Affiliation: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China; College of Science, Beijing Forestry University, Beijing 100083, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;College of Science, Beijing Forestry University, Beijing 100083, China |
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| Abstract: | The single crystal of aminoguanidine sulfate monohydrate (AG)2SO4·H2O] is obtained and its structure is determined by X-ray diffraction analysis. The compound crystallizes in orthorhombic system with space group Pnma and the empirical formula C2H16N8O5S. The unit cell parameters are as follows: a=0.6759(2)nm, b=1.4131(5)nm, c=1.1650(4)nm, V=1.1128(6)n m3, Z=4, Dc=1.578g/cm3, F(000)=560, s=1.069, μ(MoKα)=0.318mm-1. The final R and Wr are 0.0312 and 0.0833, respectively. The title compound is an ionic compound and its structure unit consists of two aminoguanidium cations, one sulfate anion and one crystal water molecule, which are interconnected by electrostatic forces and hydrogen bond s into net structure, making the title compound very stable. Under a linear heat ingrate, the thermal decomposition processes of (AG)2SO4·H2O have one en dothermal dehydration stage, one melting process and one exothermic decomposition stage at 50-400℃, and can evolve abundant gas products. |
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| Keywords: | aminoguanidine sulfate crystal structure thermal analysis |
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