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Oligogermanes containing only electron-withdrawing substituents: Synthesis and properties

Oligogermanes containing only electron-withdrawing substituents: Synthesis and properties

Zaitsev, Kirill V., Lam, Kevin ORCID: 0000-0003-1481-9212, Zhanabil, Zhaisan, Suleimen, Yerlan, Kharcheva, Anastasia V., Tafeenko, Viktor A., Oprunenko, Yuri F., Poleshchuk, Oleg Kh., Lermontova, Elmira Kh. and Churakov, Andrei V. (2016) Oligogermanes containing only electron-withdrawing substituents: Synthesis and properties. Organometallics, 36 (2). pp. 298-309. ISSN 0276-7333 (Print), 1520-6041 (Online) (doi:https://doi.org/10.1021/acs.organomet.6b00767)

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Abstract

A series of germanes Ar3GeX, containing electron-withdrawing substituents [Ar = p-FC6H4, 1a–d, 1a (X = Cl), 1b (X = Br), 1c (X = H), 1d (X = NMe2); p-F3CC6H4, 2a–d, 2a (X = Cl), 2b (X = Br), 2c (X = H), 2d (X = NMe2)], was synthesized and used to prepare symmetrical digermanes Ar3Ge–GeAr3, (p-FC6H4)3GeGe(C6H4F-p)3 (3), and (p-F3CC6H4)3GeGe(C6H4CF3-p)3 (4) and trigermane [(p-F3CC6H4)3Ge]2Ge(C6F5)2 (5) by hydrogermolysis reaction. The properties of all compounds were investigated by multinuclear NMR and for oligogermanes by UV/vis and fluorescence spectroscopy, as well as by electrochemical methods. In addition, the molecular structures of 1a, 1b, 2b, 2c, and 3–5 were studied by X-ray diffraction analysis. Compound 5 showed a significantly shifted UV/visible absorption to the red field in comparison with previously described derivatives.

Item Type: Article
Uncontrolled Keywords: Germane, Electrochemistry, Germanium, Cyclic voltammetry
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > School of Science (SCI)
Last Modified: 16 Oct 2019 14:05
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: GREAT b
Selected for GREAT 2019: GREAT 2
URI: http://gala.gre.ac.uk/id/eprint/17720

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