SYNTHESIS AND CHARACTERIZATION OF PLATINUM AND PALLADIUM CLUSTERS WITH PHOSPHIDE LIGANDS

被引：17

作者：

MOISEEV, II ^{[1
]}

KOZITSYNA, NY ^{[1
]}

KOCHUBEY, DI ^{[1
]}

KOLOMIJCHUK, VN ^{[1
]}

ZAMARAEV, KI ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST CATALYSIS,NOVOSIBIRSK 630090,RUSSIA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1993年 / 451卷 / 1-2期

关键词：

D O I：

10.1016/0022-328X(93)83030-Y

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Clusters of composition [Pt(PPh2)]n, n = 6-10, have been synthesized by reduction of a series of Pt(II) complexes [(PPh3)Pt(OAc)G]m (G = (OAc)2 . PdC3H5, M = 1; G = Cl, OAc, (OAc)2Ag, m = 2) with H-2, HCOOH and Na-amalgam. A hydridophosphide Pd(II) complex [Pd2(PPh2)Hx]n was obtained in an analogous manner by reduction of [(PPh3)Pd(OAC)2]2 with HCOOH. Additionally a complex with diphenylphosphonic acid as a ligand [Pd(mu-O2PPh2)(C6H5)(PPh3)]2 was obtained and characterized with X-ray data. The formation of O2PPh2 anion under strictly anaerobic reductive conditions implies the transfer of an O atom from the carboxylic ligand to the P atom of the phosphorus-containing ligand. Cleavage of the C-Ph bond seems to be a common process for the reductive reactions of both Pd and Pt phosphine complexes. Phosphide clusters of compositions [Pt(PPh2)]n and [Pd2(PPh2)Hx]n were characterized with IR, SAXS, EXAFS and NMR data and molecular mass measurements.

引用

页码：231 / 241

页数：11

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