Oxidative addition of methyl iodide and CO migratory insertion in a cationic rhodium complex of a S,N,S tridentate ligand

被引:24
作者
Bassetti, M
Capone, A
Mastrofrancesco, L
Salamone, M
机构
[1] Univ Roma La Sapienza, CNR, Ist Metodol Chim, I-00185 Rome, Italy
[2] Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy
关键词
D O I
10.1021/om030199z
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The cationic rhodium(I) carbonyl complex mer-[Rh(L)(CO)]PF6 coordinated by a tridentate S,N,S donor ligand (L = 2,6-bis(benzylthiomethyl)pyridine) reacts with MeI to give the corresponding acetyl derivative [Rh(L)(COMe)I]PF6, by consecutive oxidative addition-migratory insertion reactions via observable methyl-rhodium(III) intermediate complexes. Rate constants and activation parameters have been obtained for both reaction steps in MeCN, and compared with those of complexes coordinated by mono- and bidentate ligands. This is the first report on the organometallic reactivity of a rhodium(I) and carbonyl complex of S,N,S ligands.
引用
收藏
页码:2535 / 2538
页数:4
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