|
|||||
|
|
Neighbouring metal induced oxidative addition at the iron centre amongst the iron-arylpyridylphosphine complexes |
|
| Authors: | Olalere G Adeyemi Ling-Kang Liu |
| Institution: | a Department of Chemical Sciences, College of Natural Sciences, Redeemer’s University, KM 46, Lagos-Ibadan Expressway, Redemption City, Nigeria b Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC c Department of Chemistry, National Taiwan University, Taipei 10767, Taiwan, ROC |
| Abstract: | Complexes of the type (η4-BuC5H5)Fe(CO)2(P) (P = PPh2Py 3, PPhPy24, PPy35; Py = 2-pyridyl) were satisfactorily prepared. Upon treatment of 3 with M(CO)3(EtCN)3 (M = Mo, 6a; W, 6b), the pyridyl N-atom could be coordinated to the metal M, which then eliminates a CO ligand from the Fe-centre and induced an oxidative addition of the endo-C-H of (η4-BuC5H5). This results in a bridged hydrido heterodimetallic complex (η5-BuC5H4)Fe(CO)(μ-P,N-PPh2Py)(μ-H)M(CO)4] (M = Mo, 7a, 81%; W, 7b, 76%). The reaction of 4 or 5 with 6a,b did not give the induced oxidative addition, although these complexes contain more than one pyridyl N-atom. The reaction of 4 with M(CO)4(EtCN)2 (M = Mo, 9a; W, 9b) produced heterodimetallic complexes (η4-BuC5H5)Fe(CO)2(μ-P:N,N′-PPhPy2)M(CO)4] (M = Mo, 10a, 81%; W, 10b, 83%). Treatment of 5 with 6a,b gave (η4-BuC5H5)Fe(CO)2(μ-P:N,N′,N″-PPy3)M(CO)3] (M = Mo, 12a, 96%; W, 12b, 78%). |
| Keywords: | Oxidative addition Hydrides Iron complexes Arylpyridylphosphines |
| 本文献已被 ScienceDirect 等数据库收录！ | |