CHEMISTRY OF PHOSPHIDO-BRIDGED PALLADIUM(I) DIMERS - ETA(2) PD-H-P INTERACTIONS - A NEW BONDING MODE FOR SECONDARY PHOSPHINES

被引：76

作者：

LEONI, P

PASQUALI, M

SOMMOVIGO, M

LASCHI, F

ZANELLO, P

ALBINATI, A

LIANZA, F

PREGOSIN, PS

RUEGGER, H

机构：

[1] UNIV PISA, DEPT IND CHEM, I-56126 PISA, ITALY

[2] UNIV SIENA, DEPT CHEM, I-53100 SIENA, ITALY

[3] UNIV MILAN, I-20131 MILAN, ITALY

[4] SWISS FED INST TECHNOL, CH-8092 ZURICH, SWITZERLAND

来源：

ORGANOMETALLICS | 1993年 / 12卷 / 05期

关键词：

D O I：

10.1021/om00029a031

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The preparation of two new and unusual cationic Pd(I) dimeric complexes, containing bridging PBu2t and terminal PHBu2t ligands, is described. One of these, [Pd2(mu-PBu2t)(mu-PHBu2t)(PHBu2t)2]+, [2]+, contains a Pd-H-P bridging unit, the first example of this type of bonding. A second, [Pd2(mu-PBu2t) (CO) 2(PHBu2t)2]+, [3]+, represents a rare example of a Pd(I) complex with terminal CO ligands. Electrochemical, ESR, one-and two-dimensional multinuclear NMR, and X-ray crystallographic studies have been carried out on both [2]+ and [3]+. Relevant crystallographic parameters for the two triflate complexes: compound [2a]+ triclinic space group P1, a = 10.245(1) angstrom, b = 10.739(1) angstrom, c = 22.624(3) angstrom, a = 79.816(9)-degrees, beta = 87.876(10)-degrees, gamma = 68.266(8)-degrees, V = 2274.7(5) angstrom3, z = 2; compound [3a]+ orthorhombic, space group Pbca, a = 21.910(7) angstrom, b = 21.120(3) angstrom, c = 16.625(8) angstrom, V = 7707(4) angstrom3, Z = 8.

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页码：1702 / 1713

页数：12

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