CAJ | 학술논문

利用二硝酰胺铵(ADN)和盐酸胍在水溶液中合成了二硝酰胺胍([ (NH2)2CNH2 ]+N(NO2)2-, GDN),首次培养出了用于X射线衍射的无色透明单晶.GDN属三斜晶系,空间群为P-1,晶体结构参数为: a=0.8332(5) nm,b=0.9306(6) nm,c=0.9878(6) nm,α=84.659(11)°,β=69.213(12)°,γ=67.451(12)°,V=0.6605(7) nm3,Z=4,μ＝0.159 mm-1,F(000)=344,Dcalc=1.671 g·cm-3.通过DSC和TG/DTG法研究了GDN的热行为,其中第三阶段为强烈的放热分解过程,分解反应的表观活化能和指前因子分别为118.75 kJ·mol-1 和1010.86 s-1.GDN热爆炸的临界温度为164.09 ℃.GDN比ADN有更好的热稳定性.
이용이초선알안(ADN)화염산고재수용액중합성료이초선알고([ (NH2)2CNH2 ]+N(NO2)2-, GDN),수차배양출료용우X사선연사적무색투명단정.GDN속삼사정계,공간군위P-1,정체결구삼수위: a=0.8332(5) nm,b=0.9306(6) nm,c=0.9878(6) nm,α=84.659(11)°,β=69.213(12)°,γ=67.451(12)°,V=0.6605(7) nm3,Z=4,μ＝0.159 mm-1,F(000)=344,Dcalc=1.671 g·cm-3.통과DSC화TG/DTG법연구료GDN적열행위,기중제삼계단위강렬적방열분해과정,분해반응적표관활화능화지전인자분별위118.75 kJ·mol-1 화1010.86 s-1.GDN열폭작적림계온도위164.09 ℃.GDN비ADN유경호적열은정성.
Guanidine dinitramide ([ (NH2)2CNH2 ]+N(NO2)2-, GDN) was prepared by mixing ammonium dinitramide (ADN) and guanidine hydrochloride in water, and its structure was firstly determined by single-crystal X-ray diffraction. The crystal is triclinic, space group P-1 with crystal parameters of a=0.8332(5) nm, b=0.9306(6) nm, c=0.9878(6) nm, α=84.659(11)°, β=69.213(12)°, γ=67.451(12)°, V=0.6605(7) nm3, Z=4, μ＝0.159 mm-1, F(000)=344, and Dcalc=1.671 g·cm-3. The thermal behavior of GDN was studied with DSC and TG/DTG methods, and its thermal decomposition process can be divided into four stages, and the third stage is an intense exothermic decomposition process. The apparent activation energy and pre-exponential constant of the exothermic decomposition reaction are 118.75 kJ·mol-1 and 1010.86 s-1, respectively. The critical temperature of thermal explosion is 164.09 ℃. GDN presents higher thermal stability than ammonium dinitramide (ADN).