Hypercoordinated eka-tin materials with dangling aryl-methoxy and -methylthio ligands exhibiting intramolecular secondary bonding and aryl bond stabilization in reactions with organotin chlorides
作者:Alfredo Ornelas、Renzo Arias-Ugarte、Alejandro J. Metta-Magaña、Hemant K. Sharma、Keith H. Pannell
DOI:10.1039/d1dt02781f
日期:——
The syntheses of [2-(CH3ECH2)C6H4]PbPh3−nCln, (n = 0, E = O (4), E = S (5); n = 1, E = O (6), E = S (7); n = 2, E = O (8), are described. NMR and single crystal data illustrate significant Pb⋯E interactions increasing as n progresses from 0 to 2. The Pb⋯E interactions stabilize the Pb–aryl bonding to the extent that the reactions of 4 and 5 with Me2SnCl2 result in interchange of a Ph group and Cl to
[2-(CH 3 ECH 2 )C 6 H 4 ]PbPh 3− n Cl n的合成, ( n = 0, E = O ( 4 ), E = S ( 5 ); n = 1, E = O ( 6 ), E = S ( 7 ); n = 2, E = O ( 8 ), 被描述。核磁共振和单晶数据表明显着的 Pb⋯E 相互作用随着 n 从 0 到 2 的进展而增加。 Pb⋯E 相互作用稳定 Pb-芳基键合到4和5与 Me 2 SnCl 2的反应程度导致 Ph 基团和 Cl 互换,分别与 Me 2 PhSnCl一起产生6和7。