A Palladium-Oxo Complex. Stabilization of This Proposed Catalytic Intermediate by an Encapsulating Polytungstate Ligand
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- 作者：Travis M. Anderson ; Rui Cao ; Elena Slonkina ; Britt Hedman ; Keith O. Hodgson ; Kenneth I. Hardcastle ; Wade A. Neiwert ; Shaoxiong Wu ; Martin L. Kirk ; Sushilla Knottenbelt ; Ezra C. Depperman ; Bineta Keita
- 刊名：Journal of the American Chemical Society
- 出版年：2005
- 出版时间：August 31, 2005
- 年：2005
- 卷：127
- 期：34
- 页码：11948 - 11949
- 全文大小：78K
- 年卷期：v.127,no.34(August 31, 2005)
- ISSN：1520-5126
文摘
A terminal Pd-oxo unit is reported. The unit is encapsulated in a cavity defined by two [A-
-PW9O34]9- units fused together by one [WO(OH2)]4+ center and forms from Pd(II) in buffered media in the presence of O2. Both X-ray diffraction and EXAFS data are consistent with a Pd-oxo bond distance of ca. 1.65 Å. 17O NMR studies confirm that the solid-state structure is maintained in solution.
-PW9O34]9- units fused together by one [WO(OH2)]4+ center and forms from Pd(II) in buffered media in the presence of O2. Both X-ray diffraction and EXAFS data are consistent with a Pd-oxo bond distance of ca. 1.65 Å. 17O NMR studies confirm that the solid-state structure is maintained in solution.