Abstract
Reaction of the bis(bidentate) ligand 2,5-bis[2-(dimethylamino)phenyl]-1,3,4-oxadiazole (oxanMe) with the precursors trans-[PtMeCl(SMe2)(2)] and [(PhCN)(2)PtCl2] afforded the mononuclear complexes [(oxanMe)Pt(Me)Cl] and [(oxanMe)PtCl2], respectively. [(oxanMe)PtMe2] was observed in equilibrium with oxanMe, [Pt2Me4(mu-SMe2)(2)], and [PtMe2(SMe2)(2)], but could not be isolated. Reaction of [(oxanMe)PtCl2] with silver acetate gave access to [(oxanMe)Pt(OAc)(2)] in excellent yield. The latter was treated with [Cu(NCMe)(4)]-BArF, resulting in a disproportionation reaction that afforded the novel trimetallic complex {[(oxanMe)Pt(OOCCH3)(2)](2)-Cu}{BArF}(2). This complex features a linear Pt-II-Cu-II-Pt-II chain consisting of two Pt -> Cu dative bonds supported by two bridging acetate ligands each.
Original language | English |
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Pages (from-to) | 438-446 |
Number of pages | 9 |
Journal | European Journal of Inorganic Chemistry |
Issue number | 3 |
DOIs | |
Publication status | Published - Jan 2010 |
Externally published | Yes |
Funding
The authors acknowledge support from the Swiss National Foundation. We thank Mr. P. Seiler for the X-ray structure determinations.
Keywords
- Platinum
- Copper
- N ligands
- Metal-metal interactions
- Bridging ligands
- H BOND ACTIVATION
- BIMETALLIC REACTIVITY
- OXIDATIVE ADDITION
- BINDING ENERGIES
- MILD CONDITIONS
- CH ACTIVATION
- PT(II)
- COORDINATION
- CRYSTAL
- CHEMISTRY