| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1305764 | Inorganic Chemistry Communications | 2011 | 5 Pages |
Palladium NOx-containing polynuclear carboxylate complexes Pd4(μ-CO)2(μ-NO)(μ-iPrCO2)5 and Pd8(μ-CO)4(μ-NO2)4(μ-iPrCO2)8 were studied with MALDI-TOF mass-spectroscopic technique. The results confirm previous suggestion about Pd4 metal chains as building blocks for big palladium carbonyl carboxylate clusters. Also a new Pd3 bent metal chain observed in mass-spectra was demonstrated to serve a building block as well. Using the data the biggest palladium carboxylate cluster Pd12(μ-CO)8(μ-NO2)8(μ-iPrCO2)8 was synthesized and characterized by X-Ray analysis. Thus it was shown that mass-spectroscopic data for palladium carboxylates can be used for prediction of new structures of palladium clusters.
Graphical abstractPalladium NOx-containing polynuclear carboxylate complexes Pd4(μ-CO)(μ-NO)(μ-iPrCO2)5 and Pd8(μ-CO)4(μ-NO2)4(μ-iPrCO2)8 were studied with MALDI-TOF mass-spectroscopic technique. A new Pd3 bent metal chain observed in mass-spectra was demonstrated to serve a building block as well. Using the data the biggest palladium carboxylate cluster Pd12(μ-CO)8(μ-NO2)8(μ-iPrCO2)8 was synthesized and characterized by X-Ray analysis.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► MALDI-TOF MS-study of Pd4(CO)2(NO)(RCO2)5 and Pd8(CO)4(NO2)4(RCO2)8 clusters was carried out. ► New high-stable fragment of palladium carboxylate clusters – bent Pd3-chain – was observed. ► New approach to synthesis of high-nuclear palladium carboxylate cluster was proposed and tested. ► The biggest palladium carboxylate cluster Pd12(CO)8(NO2)8(RCO2)8 was characterized by X-Ray diffraction analysis.
