节点文献
两种碱土金属甲基磺酸盐的结构和催化性能研究
Study on the structure and catalytic performance of two alkaline earth methanesulfonates
【摘要】 以甲基磺酸和两种碱土金属氧化物为原料,合成了两个金属配合物[Mg(H2O)6](CH3SO3)2·6H2O(1)和Ca(CH3SO3)2(2),通过X-射线单晶衍射和热重分析确定了配合物的晶体结构和热分解过程.结果表明,甲基磺酸镁含有12个结晶水,属于三方晶系,R 3空间群,a=9. 3230 (7)?,b=9. 3230 (7)?,c=21. 2017 (12)?,α=90°,β=90°,γ=180°,V=1595. 93(19)?3,Z=3.甲基磺酸钙不含结晶水,属于正交晶系,Pbca空间群,a=10. 1298 (6)?,b=9. 2202 (5)?,c=17. 3274 (10)?,α=90°,β=90°,γ=90°,V=1618. 36 (16)?3,Z=8.采用Biginelli作为探针反应研究其催化性能,证明甲基磺酸镁的催化性能优于甲基磺酸钙.
【Abstract】 Two metal complexes [Mg( H2 O)6]( CH3 SO3)2·6 H2 O( 1) and Ca( CH3 SO3)2( 2) were synthesized by methanesulfonic acid and two alkaline earth metal oxides. The crystal structure and thermal decomposition of them were determined by X-ray single crystal diffraction technique and thermogravimetric analysis. The results show that the magnesium methanesulfonate has twelve crystal waters and belongs to the trigonal system,R3 space group,a = 9. 3230( 7) ?,b = 9. 3230( 7) ?,c = 21. 2017( 12) ?,α = 90°,β = 90°,γ = 180°,V =1595. 93( 19) ?3,Z = 3. The calcium methanesulfonate has no crystal water and belongs to orthorhombic system,Pbca space group,a = 10. 1298( 6) ?,b = 9. 2202( 5) ?,c = 17. 3274( 10) ?,α = 90°,β = 90°,γ =90°,V = 1618. 36( 16) ?3,Z = 8. Their catalytic performance was studied by using Biginelli as a probe reaction. The results indicated that the catalytic activity of magnesium methanesulfonate is better than that of calcium methanesulfonate.
【Key words】 methanesulfonates; crystal structure; Biginelli reaction; catalytic performance;
- 【文献出处】 渤海大学学报(自然科学版) ,Journal of Bohai University(Natural Science Edition) , 编辑部邮箱 ,2018年03期
- 【分类号】O641.4;O643.36
- 【被引频次】2
- 【下载频次】82