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Synthesis of low-oxidation-state germanium clusters comprising a functional anchor group – synthesis and characterization of [(Ge<sup>0</sup>)<sub>5</sub>(Ge-R)<sub>3</sub>(Ge-(CH<sub>2</sub>)<sub>n</sub>-CHCH<sub>2</sub>)] with R = Si(SiMe<sub>3</sub>)<sub>3</sub>
23
Citations
44
References
2018
Year
The first alkenyl-functionalized, uncharged deltahedral germanium clusters [{Si(SiMe<sub>3</sub>)<sub>3</sub>}<sub>3</sub>Ge<sub>9</sub>(CH<sub>2</sub>)<sub>n</sub>CH[double bond, length as m-dash]CH<sub>2</sub>] (n = 1 or 3) comprising five Ge<sup>0</sup> atoms are presented. All compounds were NMR-spectroscopically and mass-spectrometrically characterized. [{Si(SiMe<sub>3</sub>)<sub>3</sub>}<sub>3</sub>Ge<sub>9</sub>(CH<sub>2</sub>)<sub>3</sub>CH[double bond, length as m-dash]CH<sub>2</sub>] was further characterized by X-ray structure analysis and Raman spectroscopy. Temperature-dependent NMR studies reveal dynamic behavior for both compounds in solution at room temperature. The propenyl derivative [{Si(SiMe<sub>3</sub>)<sub>3</sub>}<sub>3</sub>Ge<sub>9</sub>CH<sub>2</sub>CH[double bond, length as m-dash]CH<sub>2</sub>] undergoes fast decomposition in solution. The possibility of the comparatively stable pentenyl-substituted Ge<sub>9</sub> cluster as a candidate for follow-up reactions is highlighted.
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