AGNTO was prepared by mixing amino-carbamidine bicarbonate and 3-nitro-1,2,4-triazol-5-one. The product was characterized by element analysis and IR measurement. The crystal structure of AGNTO was determined by single crystal diffraction analysis. The crystal belongs to monoclinic space group P21/n. Crystallographic data are:a=0.67870(10)nm， b=2.7915(4)nm， c=1.2739(2)nm； β =96.930(10)° ， V=2.3959(6)nm3， Z=12， Dc=1.698 g· cm－ 3， μ (Mo Kα )=1.47 cm－ 1， F(000)=1272, R=0.0352， wR=0.0718. This salt would be a very promising energetic material, and it might be used as new gas generate agent.%通过 3硝基 1， 2， 4三唑 5酮( NTO)与氨基胍重碳酸盐反应制备 NTO氨基胍盐，并用 X射线衍射、元素分析、红外光谱对其进行了表征 .晶体属于单斜晶系，空间群为 P21/n.晶体学参数为： a=0.67870(10)nm， b=2.7915(4)nm， c=1.2739(2)nm；β =96.930(10)°， V=2.3959(6)nm3， Z=12， Dc=1.698 g· cm － 3，μ ( Mo Kα )=1.47 cm － 1， F(000)=1272.晶体结构经全矩阵最小二乘法修正，最终偏离因子 R=0.0352， wR =0.0718.该盐是一种具有广泛应用前景的产气剂材料 .
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