| Autor: |
Rajan A; Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Elcheikh Mahmoud M; Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Wang F; Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007 Tarragona, Spain., Bhattacharya S; Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Mougharbel AS; Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Ma X; Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Müller AB; Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Nisar T; Department of Physics and Earth Sciences, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Taffa DH; Institute of Chemistry, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany., Poblet JM; Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo 1, 43007 Tarragona, Spain., Kuhnert N; Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Wagner V; Department of Physics and Earth Sciences, Jacobs University, Campus Ring 1, 28759 Bremen, Germany., Wark M; Institute of Chemistry, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany., Kortz U; Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany. |
| Abstrakt: |
We have discovered the first polythioplatinate(II), [Pt II 3 S 2 (SO 3 ) 6 ] 10- ( 1 ), which was synthesized in aqueous basic medium (pH 11) by hydrothermal heating at 150 °C. Polyanion 1 comprises a discrete, triangular assembly of three Pt 2+ ions linked by two μ 3 -sulfido ligands, and their square-planar coordination geometry is completed by two terminal S-bound sulfito ligands. Polyanion 1 was isolated as a hydrated sodium salt, Na 10 [Pt II 3 (μ 3 -S) 2 (SO 3 ) 6 ]·22H 2 O ( 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 195 Pt NMR and atomic absorption spectroscopy, and in the gas phase by electrospray ionization mass spectrometry. Density functional theory calculations were performed, and the 195 Pt NMR chemical shifts of 1 were computed theoretically and shown to match well with the experimental data. Furthermore, the discrete title polyanion 1 was immobilized on mesoporous SBA-15 support and used as a precatalyst for the hydrogenation of o -xylene. |
