摘要
合成了[Y(NTO)2NO3(H2O)5]·2H2O(NTO为3-硝基-1,2,4-三唑-5-酮),并测定了晶体结构,晶体属单斜晶系,空间群Cm,晶胞参数:a=0.6773(2)urn,b=20866(2)um,c=0.6551(1)um;β=102.98(2)°,V=0.9021(1)um3,Z=2,DC=1.970g·cm-3,μ=33.49cm-1,F(000)=54O,R=0.032.中心Y(Ⅲ)与2个NTO的羰基氧原子、1个NO3的1个氧原子及5个水分子的氧原子配位,形成畸变的十二面体.Y-O键长在0.2283~0.2478um之间.
[Y(NTO)2NO3 (H20)5]. 2H2O was prepared by mixing the aqueous solution oflithium 3-nitro-1, 2, 4-triazol-5uonate and the dilute nitric acid solution of yttrium oxide. The single crystal structure was determined by a four-circle X-ray diffractometer. The crystal is monoclinic, space group Cm with crystal parameters of a = 0. 677 3(2) nm, b= 2. 086 6(2)nm, c=0. 655 1(1) nm; β=102. 98(2)°, V=0. 902 1(1) nm3, Z=2, D.=1. 970 g. cm-3,p=33. 49 cm-1, F(000) =540, R=0. 032. The two carbonyls of NTO anion, one NO, and five water molecules are coordinated to Y3+. The coordinate bond lengths are between 0. 228 3 nm and 0. 247 8 nm, so the distorted dodecahedron is formed. Based on the thermal analysis, the thermolysis mechanism of [Y(NTO)2NO3(H20)5]. 2H2O has been derived.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第5期676-679,共4页
Chemical Journal of Chinese Universities
基金
火炸药燃烧国防科技重点实验室科技基金
关键词
NTO
晶体结构
热分解机理
钇配合物
含能材料
Yttrium complex of NTO
Preparation
Crystal structure
Thermolysis mechanism