| Autor: |
Rajan, Ananthu, Elcheikh Mahmoud, Mahmoud, Wang, Fei, Bhattacharya, Saurav, Mougharbel, Ali S., Ma, Xiang, Müller, Anja B., Nisar, Talha, Taffa, Dereje H., Poblet, Josep M., Kuhnert, Nikolai, Wagner, Veit, Wark, Michael, Kortz, Ulrich |
| Zdroj: |
Inorganic Chemistry; 20220101, Issue: Preprints |
| Abstrakt: |
We have discovered the first polythioplatinate(II), [PtII3S2(SO3)6]10–(1), which was synthesized in aqueous basic medium (pH 11) by hydrothermal heating at 150 °C. Polyanion 1comprises a discrete, triangular assembly of three Pt2+ions linked by two μ3-sulfido ligands, and their square-planar coordination geometry is completed by two terminal S-bound sulfito ligands. Polyanion 1was isolated as a hydrated sodium salt, Na10[PtII3(μ3-S)2(SO3)6]·22H2O (Na-1), which was characterized in the solid state by single-crystal X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectra, and elemental analysis, in solution by 195Pt NMR and atomic absorption spectroscopy, and in the gas phase by electrospray ionization mass spectrometry. Density functional theory calculations were performed, and the 195Pt NMR chemical shifts of 1were computed theoretically and shown to match well with the experimental data. Furthermore, the discrete title polyanion 1was immobilized on mesoporous SBA-15 support and used as a precatalyst for the hydrogenation of o-xylene. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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