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Issue 10, 2018
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Synthesis of low-oxidation-state germanium clusters comprising a functional anchor group – synthesis and characterization of [(Ge0)5(Ge-R)3(Ge-(CH2)n-CH[double bond, length as m-dash]CH2)] with R = Si(SiMe3)3

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Abstract

The first alkenyl-functionalized, uncharged deltahedral germanium clusters [{Si(SiMe3)3}3Ge9(CH2)nCH[double bond, length as m-dash]CH2] (n = 1 or 3) comprising five Ge0 atoms are presented. All compounds were NMR-spectroscopically and mass-spectrometrically characterized. [{Si(SiMe3)3}3Ge9(CH2)3CH[double bond, length as m-dash]CH2] 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(SiMe3)3}3Ge9CH2CH[double bond, length as m-dash]CH2] undergoes fast decomposition in solution. The possibility of the comparatively stable pentenyl-substituted Ge9 cluster as a candidate for follow-up reactions is highlighted.

Graphical abstract: Synthesis of low-oxidation-state germanium clusters comprising a functional anchor group – synthesis and characterization of [(Ge0)5(Ge-R)3(Ge-(CH2)n-CH [[double bond, length as m-dash]] CH2)] with R = Si(SiMe3)3

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Publication details

The article was received on 24 Jan 2018, accepted on 26 Jan 2018 and first published on 02 Feb 2018


Article type: Communication
DOI: 10.1039/C8DT00321A
Citation: Dalton Trans., 2018,47, 3223-3226
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    Synthesis of low-oxidation-state germanium clusters comprising a functional anchor group – synthesis and characterization of [(Ge0)5(Ge-R)3(Ge-(CH2)n-CH[double bond, length as m-dash]CH2)] with R = Si(SiMe3)3

    S. Frischhut and T. F. Fässler, Dalton Trans., 2018, 47, 3223
    DOI: 10.1039/C8DT00321A

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