THE SYNTHESES AND VIBRATIONAL-SPECTRA OF TETRAKIS(CARBONYL) PALLADIUM(II) AND PLATINUM(II) UNDECAFLUORODIANTIMONATE(V), [PD(CO)4][SB2F11]2, AND [PT(CO)4][SB2F11]2

被引:58
作者
HWANG, G
WANG, C
AUBKE, F
WILLNER, H
BODENBINDER, M
机构
[1] UNIV BRITISH COLUMBIA,DEPT CHEM,VANCOUVER V6T 1Z1,BC,CANADA
[2] UNIV HANNOVER,INST ANORGAN CHEM,W-3000 HANNOVER,GERMANY
来源
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1993年 / 71卷 / 09期
关键词
D O I
10.1139/v93-192
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reductive carbonylation of either platinum(IV) fluorosulfate, Pt(SO3F)4, or palladium(III) fluorosulfate, Pd(SO3F)3, either in solution of fluorosulfuric acid, HSO3F, or in the solid state with CO at pressures of 0.5 to 2 atmospheres and at 25-degrees-C, affords in high yield complexes of the type M(CO)2(SO3F)2, M = Pd or Pt. The square-planar complexes are readily converted by solvolysis in liquid antimony(V) fluoride in the presence of CO at a pressure of about 1 atmosphere to white, thermally stable, salts of the composition [M(CO)4][Sb2F11]2, M = Pd or Pt, which contain the novel, square-planar cations [Pd(CO)4]2+ and [Pt(CO)4]2+. The two cations exhibit the highest CO stretching frequencies reported so far, about 120 cm-1 higher than in free CO, which suggests the absence or near absence of pi-back donation for the M-CO bond.
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页码:1532 / 1536
页数:5
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