不稳定含能材料1-氨基-1-肼基-2,2-二硝基乙烯的包合研究

Study on Inclusion of Unstable Energetic Material 1-Amino-1-hydrazino-2,2-dinitroethylene

为提高不稳定化合物1-氨基-1-肼基-2,2-二硝基乙烯(AHDNE)的稳定性,进行了AHDNE的包合研究。通过紫外吸收光谱研究,发现对叔丁基(对硝基)杯[n]芳烃(n=4,6,8)及β-(硝化)环糊精(β-CD和β-NCD)与AHDNE在溶液中存在包合作用。确定了包合物的化学计量比和稳定配合常数。结果表明,包合比为11,硝化后的主体分子与AHDNE的稳定配合常数比未硝化主体分子高数十倍。对硝基杯[6]芳烃和β-NCD与AHDNE的配合常数达2×104以上。主客体化合物、包合物和物理混合物的X-射线衍射分析证实包合物的形成。β-NCD/AHDNE包合物的感度低于AHDNE和β-NCD的感度。

In order to improve the stability of unstable compound 1-amino-I- hydrazine-2,2-dinitroethylene（AHDNE）, the inclu- sion of AHDNE was studied. The presence of inclusion interactions of host compounds p-tertbutyl（p-nitro）calix[n]arenes（n = 4, 6, 8）, β-cyclodextrin （β-CD） and β-cyclodextrin nitrate （β-NCD） with AHDNE was demostrated by UV-vis absorption spec- tra. The stoichiometric ratio and stability constants of the inclusion complexes were determined. The results show that the inclu- sion ratio is 1 ： 1 and the stability constants of the inclusion compounds derived from the p-nitrocalix[ n] arenes and β-NCD are ten times higher than those of their unnitrated precursors. The stability constants of the inclusion complexes coming from both p-nitrocalix[6] arene and β-NCD reach above 2 x 104. XRD analyses of host -guest compound, inclusion complex and physical mixture confirmed the formation of inclusion complexes. The sensitivities of β-NCD/AHDNE inclusion complex are lower than those of AHDNE and β-NCD.