摘要
合成了配体3-(2-吡啶基)-4-(对甲氧苯基)-5-(2-噻吩基)-1,2,4-三唑(L),通过IR、1HNMR、13CNMR、MS、元素分析、紫外和荧光等测定对其进行表征。利用配体L与CdI2反应,合成出一种镉(Ⅱ)的配合物[CdLI2]2,其结构由单晶X衍射结构分析、红外、紫外、元素分析表征。该晶体属于单斜晶系,空间群为P21/c。晶体结构表明:每个镉离子与3个碘离子和2个氮原子配位,形成了变形的四方锥几何构型,配合物是以Cd2I2四边形中心内环为对称中心而形成的二聚体。采用滤纸片法对E.Coli、P.Aeruginosa和S.Aureus进行抗菌活性试验,配体和配合物均表现一定的抑菌活性。
The compound 3-（2-pyridyl）-4-（p-methoxyphenyl）-5-（2-thienyl）-l,2,4-triazole（L） was synthesized and characterized by IR, 1H NMR, ^13C NMR, MS, elemental analysis, UV and photoluminescence spectra. The complex [CdLI2]2 was prepared by the reaction of the compound （L） with CdI2, and its structure was characterized by single crystal X-ray diffraction structure analysis, IR, UV and elemental analysis. The complex crystallizes in monoelinie system with space group P21/c, a=1.147 4（9） nm, b=0.853 2（7） nm, c=2.194 6（18） nm,β=102.33（10）°, Mr=l 401.18, V=2.098 9 nm^3, Z=2, D,=2.217 g·cm^-3, F（000）=1312, R1=0.041 1, wR2=0.128 9. The crystal structure shows that the cadmium ion is coordinated with three iodine ions and two nitrogen atoms, forming a distorted square-pyramidal coordination geometry. The complex has a eentrosymmetrie dimer structure mode with a four-membered eentralendocyclic Cd2I2 unit. The antibacterial activity was studied by using the filter scraps diffusion method, and the results indicated the ligand and its complex had bacteriostatie activity against E. Coli, P. Aeruginosa and S. Aureus. CCDC： 732286.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2009年第6期1000-1004,共5页
Chinese Journal of Inorganic Chemistry
基金
安徽高校青年教师科研项目(No.2006jql224)
安徽高校自然科学基金(No.KJ2007B231)资助项目
关键词
合成
镉(Ⅱ)配合物
晶体结构
抗菌活性
synthesis
cadmium（Ⅱ） complex
crystal structure
antibacterial activity
