Synthesis and characterization of rhodium(I) 2-methylcupferrate complexes and their kinetic behaviour in iodomethane oxidative addition

被引：12

作者：

Warsink, Stefan ^{[1
]}

Fessha, Fanuel G. ^{[1
]}

Purcell, Walter ^{[1
]}

Venter, Johan A. ^{[1
]}

机构：

[1] Univ Orange Free State, Dept Chem, ZA-9300 Bloemfontein, South Africa

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2013年 / 726卷

基金：

新加坡国家研究基金会;

关键词：

Oxidative addition; Rhodium; Cupferrate; Iodomethane; Kinetics; CRYSTAL-STRUCTURE; MECHANISM; LIGANDS;

D O I：

10.1016/j.jorganchem.2012.12.005

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A number of substituted monocarbonyl complexes [Rh(MeCupf)(CO)(PR3)] (where R - Ph, p-MeOph, p-Tol, o-Tol and Cy, MeCupf = N-nitroso-N-(2-methylphenyl) hydroxylaminato bidentate ligand) have been prepared from [Rh(MeCupf)(CO)(2)] and identified by IR, UV/visible and NMR techniques. The kinetics and mechanism for the oxidative addition of iodomethane to [Rh(MeCupf)(CO)(PR3)] complexes have been investigated through the variation of steric and electronic effects of the phosphine ligands, as well as through varying the solvent and temperature. The Rh-III-alkyl complex was the primary species formed as a result of oxidative addition, followed by a consecutive slower formation of the Rh-III-acyl species by carbonyl-insertion. A detailed mechanism is discussed. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：14 / 20

页数：7

共 35 条

[1]

Ahmed M., 1988, DALTON T, P257

[2]

[Anonymous], 1990, SCI WIND LEAST SQUAR

[3] Synthesis and spectral data of some new N-nitroso-N-phenylhydroxylamine (cupferron) derivatives [J].

Balaban, AT ;

Garfield, RE ;

Lesko, MJ ;

Seitz, WA .

ORGANIC PREPARATIONS AND PROCEDURES INTERNATIONAL, 1998, 30 (04) :439-446

[4]

Basson S.S., 1987, INORG CHIM ACTA, V84, P167

[5] THE OXIDATIVE ADDITION OF METHYL-IODIDE TO BETA-DIKETONECARBONYLTRIPHENYLPHOSPHINERHODIUM(I) COMPLEXES [J].

BASSON, SS ;

LEIPOLDT, JG ;

NEL, JT .

INORGANICA CHIMICA ACTA-ARTICLES AND LETTERS, 1984, 84 (02) :167-172

[6] MECHANISM FOR THE OXIDATIVE ADDITION OF IODOMETHANE TO CARBONYL(N-HYDROXY-N-NITROSOBENZENAMINATO-O,O')TRIARYLPHOSPHINERHODIUM(I) COMPLEXES AND CRYSTAL-STRUCTURE OF [RH(CUPF)(CO)(CH3)(I)(PPH3)] [J].

BASSON, SS ;

LEIPOLDT, JG ;

ROODT, A ;

VENTER, JA .

INORGANICA CHIMICA ACTA, 1987, 128 (01) :31-37

[7] THE OXIDATIVE ADDITION OF IODOMETHANE TO ACETYLACETONATOCARBONYLPHOSPHINERHODIUM(I) COMPLEXES [J].

BASSON, SS ;

LEIPOLDT, JG ;

ROODT, A ;

VENTER, JA ;

VANDERWALT, TJ .

INORGANICA CHIMICA ACTA, 1986, 119 (01) :35-38

[8] STRUCTURE OF PENTACOORDINATED B-CARBONYL-CD-(N-HYDROXY-N-NITROSOBENZENAMINATO-O,O')-AE-BIS(TRIPHENYLPHOSPHINE)RHODIUM(I) [J].

BASSON, SS ;

LEIPOLDT, JG ;

VENTER, JA .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1990, 46 :1324-1326

[9] STRUCTURE OF CARBONYL(N-HYDROXY-N-NITROSOBENZENAMINATO-0,0')(4-METHYL-2,6,7-TRIOXA-1-PHOSPHABICYCLO[2.2.2]OCTANE)RHODIUM(I) [J].

BASSON, SS ;

LEIPOLDT, JG ;

PURCELL, W ;

VENTER, JA .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1992, 48 :171-173

[10] Kinetic study of the oxidative addition reaction between methyl iodide and [Rh(FcCOCHCOCF3)(CO)(PPh3)]:: Structure of [Rh(FcCOCHCOCF3)(CO)(PPh3)(CH3)(I)] [J].

Conradie, Jeanet ;

Lamprecht, Gert J. ;

Roodt, Andreas ;

Swarts, Jannie C. .

POLYHEDRON, 2007, 26 (17) :5075-5087

← 1 2 3 4 →