斯蒂芬酸氢铷的制备，晶体结构和热分解机理

A new compound,RbHTNR]_∞HTNR:C_6H(NO_2)_3(OH)O],was synthesized by the reaction of rubidium ni-trate and styphnic acid.The molecular structure was characterized using X-ray diffraction analysis,elementalanalysis and FTIR spectroscopy.The crystalline is monoclinic with space group P2_1/n and the empirical formulaC_6H_2N_3O_8Rb.The unit cell parameters are:a=0.4525 nm,b=1.0777 nm,c=1.9834 nm,β=90.47(2)°,V=0.96725 nm~3,Z=4,D_c=2.263 g/cm~3,Mr=329.58,F(000)=640,μ(Mo Kα)=5.165 mm~(-1).The thermal decompo-sition mechanism of the complex was studied by differential scanning calorimetry(DSC),thermogravimetry-derivative thermogravimetry(TG-DTG)and FTIR techniques.At the linear rate of 10 ℃/min,the thermaldecomposition of the complex showed three mass reducing processes between 60 and 500 ℃,and finally evolvedRbCN and some gaseous products.

Synthesis,X‐ray Crystal Structure and Thermal Decomposition Mechanism of [RbHTNR]∞

A new compound, RbHTNR]_∞ HTNR^?: C₆H(NO₂)₃(OH)O^?], was synthesized by the reaction of rubidium nitrate and styphnic acid. The molecular structure was characterized using X‐ray diffraction analysis, elemental analysis and FTIR spectroscopy. The crystalline is monoclinic with space group P2₁/n and the empirical formula C₆H₂N₃O₈Rb. The unit cell parameters are: a=0.4525 nm, b=1.0777 nm, c=1.9834 nm, β=90.47(2)°, V=0.96725 nm³, Z=4, D_c?2.263 g/cm³, M_r=329.58, F(000) =640, μ(Mo Kα)=5.165 mm^?1. The thermal decomposition mechanism of the complex was studied by differential scanning calorimetry (DSC), thermogravimetry‐derivative thermogravimetry (TG‐DTG) and FTIR techniques. At the linear rate of 10 °C/min, the thermal decomposition of the complex showed three mass reducing processes between 60 and 500 °C, and finally evolved RbCN and some gaseous products.