DETERMINATION OF THE MAGNITUDE AND SIGN OF THE 2JPT-P COUPLING-CONSTANTS IN DINUCLEAR PLATINUM(I) PHOSPHINE COMPLEXES BY 2-DIMENSIONAL P-31 NMR-SPECTROSCOPY

被引：13

作者：

KREVOR, JVZ

SIMONIS, U

KARSON, A

CASTRO, C

ALIAKBAR, M

机构：

[1] Department of Chemistry and Biochemistry, San Francisco State University, California

来源：

INORGANIC CHEMISTRY | 1992年 / 31卷 / 02期

关键词：

D O I：

10.1021/ic00028a035

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two-dimensional P-31 homonuclear shift correlated spectroscopy (COSY) is applied to the analysis of a series of dinuclear Pt(I) complexes containing phosphine ligands. On the basis of the spectra of known symmetrical dimers, it is established that cross-peak positions of the Pt-P satellite signals can be used to determine the sign and magnitude of the 2J(Pt-P) coupling constant. This coupling constant has been correlated with the strength of the Pt-Pt interaction in these complexes. Using cross-peak positions present in the spectra of unsymmetrical dimers which contain five or more phosphorus nuclei, previously unobtainable values for the 2J(Pt-P) coupling constants are determined. The signs and the magnitudes of these coupling constants are found to follow the trans effect trend established for ligands in other Pt complexes.

引用

页码：312 / 317

页数：6

共 41 条

[1] EFFECT OF CHELATE-RING SIZE ON SPECTROSCOPIC AND CHEMICAL PROPERTIES OF METHYLPLATINUM(II) COMPLEXES OF DITERTIARY PHOSPHINES PH-2P-[CH-2]-NPPH-2(N=1,2, OR 3) [J].