کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1327107 | 977464 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and structural characterisation of the palladium N-heterocyclic carbene cluster complexes [Pd3(μ-CO)3(NHC)3] and [Pd3(μ-SO2)3(NHC)3] Synthesis and structural characterisation of the palladium N-heterocyclic carbene cluster complexes [Pd3(μ-CO)3(NHC)3] and [Pd3(μ-SO2)3(NHC)3]](/preview/png/1327107.png)
The reduction of trans-[Pd(NHC)2Cl2] (NHC = IMes, 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene; IiPr2 = 1,3-bis-isopropylimidazol-2-ylidene) with potassium graphite under an atmosphere of CO affords the palladium NHC carbonyl clusters [Pd3(μ-CO)3(NHC)3] (NHC = IMes, 1; IiPr2, 3). Treatment of 1 with SO2 at room temperature yields the bridging SO2 complex [Pd3(μ-SO2)3(IMes)3] (4) in quantitative yield. Complexes 1, 3 and 4 have been structurally characterised by X-ray crystallography.
Reaction of the N-heterocyclic carbene complexes [Pd(IMes)2Cl2] and [Pd(IiPr)2Cl2] with KC8/CO affords the structurally characterised tris-palladium carbonyl clusters [Pd3(μ-CO)3(IMes)3] and [Pd3(μ-CO)3(IiPr2)3]. The former reacts with SO2 to give [Pd3(μ-SO2)3(IMes)3].Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 695, Issue 1, 1 January 2010, Pages 6–10