1999 Fiscal Year Final Research Report Summary
Architecture and properties of platinum group metal cluster complexes bearing polydentate ligands
| Project/Area Number |
09640677
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Toho University |
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Principal Investigator |
YAMAMOTO Yasuhiro Toho University Faculty of Science Professor, 理学部, 教授 (40087515)
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| Project Period (FY) |
1997 – 1999
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| Keywords | Platinum / triphosphine / trinuclear complexes / Isocyanide / nitrosyl / 1, 1-Bis(diphenylphosphino)ferroce / Hietero nuclear |
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| Research Abstract |
Reaction of diplatinum complexes 1 bearing bis(diphenylphosphinomethyl)phenylphosphine (dpmp), [PtィイD22ィエD2(dpmp)ィイD22ィエD2(RNC)ィイD22ィエD2]ィイD12+ィエD1 with M(RNC)ィイD22ィエD2 (M = Pt or Pd) underwent insertion of the metal fragment into a Pt-Pt bond to give homo- or heterotrinuclear A-frame complexes [PtィイD22ィエD2MX(dpmp)ィイD22ィエD2(RNC)ィイD24ィエD2]ィイD12+ィエD1. When complex 1 was treated with group 11 metal ions, the metal ions were incorporated into a diplatinum center to give [PtィイD22ィエD2M(dpmp)ィイD22ィエD2(RNC)ィイD22ィエD2]ィイD13+ィエD1 (M = Au, Ag) or [PtィイD22ィエD2MX(dpmp)ィイD22ィエD2(RNC)ィイD22ィエD2]ィイD12+ィエD1 (M = Cu ; X = Cl, Br, I) (Scheme 1). In the ィイD131ィエD1P{ィイD11ィエD1H} nmr spectra of Pt-Cu mixed complexes the chemical shifts was related with halogens. Trinuclear complex [PtィイD23ィエD2(dpmp)ィイD22ィエD2(RNC)ィイD24ィエD2]ィイD12+ィエD1 reacted readily with [NO][BFィイD24ィエD2] to yield unprecedented nitrosyl-bridged double A-frame complexes, [PtィイD23ィエD2(dpmp)ィイD22ィエD2(NO)(RNC)ィイD22ィエD2]ィイD14+ィエD1. Dinuclear palladium complexes, [PdィイD22ィエD2(dppf)ィイD22ィエD2(RNC)ィイD22ィエD2]ィイD12+ィエD1 were prepared from the reaction of [PdィイD22ィエD2(RNC)ィイD24ィエD2]ィイD12+ィエD1 with 1, 1'-bis(diphenylphosphino)ferrocene (dppf). The photochemical reactions of these complexes led to cleavage of a Pd-Pd bond.
Our research on platinum and palladium complexes bearing triphosphine have been reported : Trends in Organometallic Chemistry, 35-69 (1999).
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Research Products
(16 results)
