| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1308877 | Inorganica Chimica Acta | 2011 | 6 Pages |
Base-assisted reduction of [Ru(CO)3Cl2]2 in the presence of NP-Me2 (2,7-dimethyl-1,8-naphthyridine) in thf provides an unsupported diruthenium(I) complex [Ru2(CO)4Cl2(NP-Me2)2] (1). Two NP-Me2 and four carbonyls bind at equatorial positions and two chlorides occupy sites trans to the Ru–Ru single bond. Reaction of [Ru(CO)3Cl2]2, TlOTf, KOH and NP-Me2 in acetonitrile, in a sealed container, affords a bicarbonate bridged diruthenium(I) complex [Ru2(CO)2(μ-CO)2(μ-O2COH)(NP-Me2)2](OTf) (2). The in situ generated CO2 is the source for bicarbonate under basic reaction medium. Isolation of 2 validates the decarboxylation step in the base-assisted reduction of [RuII(CO)3Cl2]2 → [RuI2(CO)4]2+.
Graphical abstractA bicarbonate bridged diruthenium(I) complex [Ru2(CO)4(HCO3)(NP-Me2)2](OTf) is isolated in the base-assisted reduction of [Ru(CO)3Cl2]2 in the presence of NP-Me2 (2,7-dimethyl-1,8-naphthyridine) in acetonitrile; the in situ generated CO2 being the source for bicarbonate under basic reaction medium.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Bicarbonate bridged [Ru2(CO)2(μ-CO)2(μ-O2COH)(NP-Me2)2](OTf) is synthesized. ► The decarboxylation step in the base-assisted reduction of Ru2Cl4(CO)6 is confirmed. ► Tl(I) free synthesis of an unsupported complex [Ru2(CO)4Cl2(NP-Me2)2] is achieved.
