| 含金属基团的四价锡化合物的合成和取代反应动力学 |
| |
| 引用本文： | 王序昆,刘向阳,张正之,梁树森.含金属基团的四价锡化合物的合成和取代反应动力学[J].化学学报,1987,45(10):938-942. |
| |
| 作者姓名： | 王序昆 刘向阳 张正之 梁树森 |
| |
| 作者单位： | 南开大学元素有机化学研究所;南开大学化学系 |
| |
| 摘 要： | 通式为Fe(CO)~2Cp]~2Sn(Ar)Cl的化合物为一组新的化合物,由Fe(CO)~2Cp]~2SnCl2与AgMgX反应合成.Fe(CO)~2Cp]~2Sn(Ar)Cl与各种亲核试剂Y发生取代反应给出另一组新的化合物Fe(CO)~2Cp]~2Sn(Ar)Y,其中Fe(CO)~2Sn(p-MeC~6H~4)Br经X射线衍射分析确定结构.Fe(CO)~2Cp]~2Sn(1,3,5-Me~3C~6H~3)Cl与NAS~2CNMe~2或KSCN在不同溶剂中的反应动力学表明,由于锡易形成高配位中间体,尽管锡上两个较大的金属基团带来一定空间障碍,反应仍主要按SN2机理进行.
|
| 关 键 词： | 晶体结构测定 反应机理 反应动力学 Ｘ射线衍射分析 取代反应 环戊二烯P 羰基络合物 锡化合物 格氏试剂 四配位 |
The synthesis and substitution kinetics of Tin(IV) compounds with attached metal groups |
| |
| WANG XUKUN,LIU XIANGYANG,ZHANG ZHENGZHI,LIANG SHUSEN.The synthesis and substitution kinetics of Tin(IV) compounds with attached metal groups[J].Acta Chimica Sinica,1987,45(10):938-942. |
| |
| Authors: | WANG XUKUN LIU XIANGYANG ZHANG ZHENGZHI LIANG SHUSEN |
| |
| Abstract: | A series of new compounds with the general formula Fe(CO)2Cp]2SnRCl R = (un)substituted Ph, Cp = h5-C5H5] was prepared from the reaction of Fe(CO)2Cp]2SnCl2 with RMgX (X = halide). The reaction of Fe(CO)2Cp]2SnRCl with a series of nucleophiles, Y-, gave another group of new compounds, Fe(CO)2Cp]2SnRY, among which Fe(CO)2Cp]2Sn(p-MeC5H4)Br was characterized by an x-ray structural anal. The kinetics of the reaction between Fe(CO)2Cp]2Sn(2,4,6-Me3C6H2)Cl and NaS2CNMe2 or KSCN in different solvents showed that the major reaction pathway was SN2 despite the steric hindrance from the two bulky iron groups attached to the central tin. |
| |
| Keywords: | CRYSTAL STRUCTURE DETERMINATION REACTION MECHANISM REACTION KINETICS X-RAY DIFFRACTION ANALYSIS SUBSTITUTION REACTION CYCLOPENTADIENE P CARBONYL COMPLEX TIN COMPOUND GRIGNARD REAGENT TETRACOORDINATE |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《化学学报》浏览原始摘要信息 |
| 点击此处可从《化学学报》下载免费的PDF全文 |
|
