摘要
通过溶剂热法,使双齿酰胺基官能化氮杂环卡宾(NHC)配体与ZnCl2反应,合成了一种全新的酰胺基官能化N-杂环卡宾锌配合物L1-Zn。通过单晶X射线衍射(SC-XRD)、红外光谱(FTIR)和能谱(EDX)对其结构和化学组成进行了表征。锌配合物的晶体结构测定揭示了其为零维结构。该配合物可催化丙交酯开环聚合反应,在无溶剂条件下,当反应温度120℃、反应时间3 h、单体与催化剂物质的量比100∶1时,丙交酯的转化率为21%。
A novel amide-functional N-heterocyclic carbene zinc complex L1-Zn was synthesized by solvothermal reaction of diamido-functional N-heterocyclic carbene(NHC)ligand with ZnCl_(2).It was characterized by single crystal X ray diffraction(SC-XRD),infrared spectroscopy(FTIR)and energy spectrum(EDX).The results showed that the crystal structure of the zinc complex was zero-dimensional.The complex could catalyze the ring-opening polymerization of lactide.Under the solvent-free condition,when the reaction temperature was 120℃,the reaction time was 3 h,and the molar ratio of monomer to catalyst was 100∶1,the conversion rate of lactide was 21%.
作者
阚启明
刘苏
韩悦
张嘉敏
罗志雄
丁茯
KAN Qiming;LIU Su;HAN Yue;ZHANG Jiamin;LUO Zhixiong;DING Fu(School of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang Liaoning 110142,China)
出处
《辽宁化工》
CAS
2024年第8期1211-1214,共4页
Liaoning Chemical Industry
关键词
氮杂环卡宾
锌配合物
丙交酯聚合
Nitrogen heterocyclic carbene
Zinc complex
Lactide polymerization
