H-1-NMR STUDY OF MONOMERIC CHLORO-RHENIUM(III) COMPLEXES WITH TRIARYLPHOSPHINES AND NITRILES

被引：36

作者：

PEARSON, C ^{[1
]}

BEAUCHAMP, AL ^{[1
]}

机构：

[1] UNIV MONTREAL,DEPT CHIM,MONTREAL,PQ H3C 3J7,CANADA

来源：

INORGANICA CHIMICA ACTA | 1995年 / 237卷 / 1-2期

关键词：

CRYSTAL STRUCTURES; RHENIUM COMPLEXES; NITRILE COMPLEXES; PHOSPHINE COMPLEXES; PARAMAGNETIC COMPLEXES;

D O I：

10.1016/0020-1693(95)04657-U

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

ReCl3(RCN) (PR'(3))(2) complexes (R = Me, Et, Ph; R' = Ph, p-tol, m-tol) give relatively narrow H-1 NMR signals in spite of the presence of the paramagnetic Re(III) centre. The signals of one ligand are not greatly affected by changes in the other ligand. In all cases, the spectra are consistent with the mer-trans structure previously found in the solid state for ReCl3(MeCN) (PPh(3))(2). For P(m-tol)(3), the preparation of the ReOCl3{P(m-tol)(3)}(2) starting complex from ReO4- required milder conditions than for PPh(3) and P(p-tol)(3), the standard method leading to the further reduced compound ReCl4{P(m-tol)(3)}(2), whose crystal structure was determined by X-ray diffraction (monoclinic, P2(1)/c, a = 11.218, b = 18.204, c = 11.192 Angstrom, beta = 118.64 degrees, R = 0.042). The latter complex adopts the trans geometry with the Re atom sitting on a crystallographic inversion centre.

引用

页码：13 / 18

页数：6

共 22 条

[1]

Abraham R.J., 1988, INTRO NMR SPECTROSCO

[2]

BERTINI I, 1986, NMR PARAMAGNETIC MOL

[3] REACTIONS OF SMALL MOLECULES WITH RE2CL4(PET3)4 .1. STRUCTURAL AND SPECTROSCOPIC STUDIES OF SEVERAL PRODUCTS RESULTING FROM THE REACTION WITH CARBON-MONOXIDE [J].