邻羟基苯乙酮苯甲酰腙镍、铬配合物的合成、晶体结构及热稳定性  

Synthesis, Crystal Structure and Thermal Stability of 2’-Hydroxyacetophenone Benzoyl Hydrazone Ni(Ⅱ)、Cr(Ⅲ) Complexes

作　　者：王栋[1] 贾科玲[1] 郑长征[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《化工技术与开发》2013年第8期6-9,13,共5页Technology & Development of Chemical Industry

摘　　要：采用水热法和自然挥发法,邻羟基苯乙酮苯甲酰腙与过渡金属Ni(Ⅱ)、Cr(Ⅲ)反应,合成2种新型配合物。通过X射线单晶衍射对配合物结构进行了表征。配合物1:晶体为单斜晶系,C2/c空间群,晶胞参数a=1.5853(3)nm,b=1.16643(19)nm,c=1.8928(3)nm,β=90.00°,V=3.5000(10)nm3,Z=8,Dc=1.484g.cm-3。配合物2:晶体为四方晶系,I4122空间群,晶胞参数a=1.2272(4)nm,b=1.1098(4)nm,c=1.8849(6)nm,β=90.00°,V=2.5671(15)nm3,Z=4,Dc=1.445g.cm-3。配合物1的中心金属离子Ni(Ⅱ)与周围2个氧原子和2个氮原子形成平面几何构型。配合物2的中心金属离子Cr(Ⅲ)与周围4个氧原子和2个氮原子配位形成畸变的八面体配位构型。并利用热失重法分析研究了配合物的热稳定性。Two transition metal complexes as 2’-Hydroxyacetophenone benzoyl hydrazone with Ni（Ⅱ）,Cr（Ⅲ） were synthesized by hydrothermal method and solvent evaporation technique and charactered by singal crystal X-ray diffraction analysis and thermogravimetric analysis.The result showed that the complex 1 crystal structure belonged to monoclinic,space group C2 /c with a=1.5853（3）nm,b=1.16643（19）nm,c=1.8928（3）nm,β=90.00 °,V=3.5000（10）nm3,Z = 8,Dc = 1.484g/cm3.The complex 2 crystallized in the tetragonal space group I4122 with a = 1.2272（4） nm,b = 1.1098（4）nm,c = 1.8849（6）nm,β = 90.00°,V = 2.5671（15） nm3,Z = 4,Dc =1.445g/cm3.The complex 1 Ni（Ⅱ） ions existed in a four-coordinated environment in which one tridentate ligand in the two oxygen atoms and one nitrogen,one pyridine nitrogen atoms.The complex 2 Cr（Ⅲ） ions in complex 2 were octahedrally coordinated by four oxygen atoms and two nitrogen atoms from two tridentate ligands.

关 键 词：配合物 晶体结构 热稳定性 

分 类 号：O614.813[理学—无机化学] O614.611[理学—化学]