摘要
通过碳酰肼水溶液与高氯酸锌水溶液反应制得含能配合物[Zn(CHZ)3](ClO4)2.培养获得了配合物的单晶,用X射线单晶衍射法测定了晶体结构,该晶体属于单斜晶系、P2(1)/n空间群,晶胞参数a=1.0005(2)nm,b=0.8428(1)nm,c=2.1218(4)nm,β=100.948(3)°,V=1.7566(5)nm3,Dc=2.021 g/cm3,Z=4,F(000)=1088,R1=0.0341,ωR2=0.0729.该配合物分子式为[Zn(CHZ)3](ClO4)2,CHZ分子配体通过羰基O原子和端位N原子与锌离子形成配位键,构成稳定的五元环结构.差示扫描量热(DSC)分析和热重-微分热重(TG-DTG)分析结果表明,[Zn(CHZ)3](ClO4)2在270℃以下无分解反应,耐热性好;在280~340℃之间发生剧烈的连续放热分解,具有起爆药的热分解特征.感度性能测试结果表明,Zn(CHZ)3](ClO4)2对撞击、摩擦、火焰等外界刺激不敏感,安全性好.
A new energetic compound [Zn(CHZ)3](ClO4)2 was synthesized in aqueous solutions of carbo-hydrazide and Zn(ClO4)2.Single crystals suitable for X-ray analysis were obtained.The compound was characterized by differential scanning calorimetry(DSC),thermal gravimetry-differential thermal gravimetry(TG-DTG) and single crystal X-ray diffraction analysis.The crystal belongs to a monoclinic system with P2(1)/n space group and cell parameters of a=1.0005(2) nm,b=0.8428(1) nm,c=2.1218(4) nm,β=100.948(3)°,V=1.7566(5) nm3,Dc=2.021 g/cm3,Z=4,F(000)=1088,R1=0.0341 and ωR2=0.0729.The Zinc(II) cation is coordinated with carbonyl O atoms and N atoms from carbohydrazide forming a six-coordinated ring structure.[Zn(CHZ)3](ClO4)2 can resist heat up to 270 ℃.An intense continuous exo-thermic decomposition process occurs in the range of 280~340 ℃.The sensitivity test results reveal that [Zn(CHZ)3](ClO4)2 was insensitive to impact,friction and flame stimuli.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2011年第8期987-992,共6页
Acta Chimica Sinica
基金
爆炸科学与技术国家重点实验室(北京理工大学)重点资助项目(No.ZDKT10-01b)
国家自然科学基金(No.20471008)资助项目
关键词
碳酰肼
高氯酸碳酰肼合锌
晶体结构
热分析
感度
carbohydrazide
zinc carbohydrazide perchlorate
crystal structure
thermoanalysis
sensitivity