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Factors Influencing the Synthesis of Polyorganogermanes by Electroreductive Coupling of Di-n-hexyldichlorogermane

✍ Scribed by L. Martins; S. Aeiyach; M. Jouini; P.-C. Lacaze; J. Satgé; G. Rima

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
89 KB
Volume
11
Category
Article
ISSN
0268-2605

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✦ Synopsis

The effects of the nature of the electrodes (sacrificial anode and cathode) and of the solvent on the electroreduction of di-n-hexyldichlorogermane have been investigated. Several sacrificial anodes (magnesium, zinc and aluminium) and cathodes, including stainless steel, magnesium and aluminium, have been used in THF containing LiClO 4 . Monomodal and polymodal poly(di-n-hexylgermanes) were obtained with Al/Al and Mg/Mg electrode pairs, but the polymer yield was about twice as high with Al/Al (64%) as with Mg/Mg (30%). Various solvents (tetrahydrofuran, hexamethylphosphorotriamide, N,N-dimethylacetamide, acetonitrile and dimethylformamide) with LiClO 4 have been used as electrolytic media. Monomodal PDHG with a relatively narrow molecular weight distribution ([M] w /[M] n = 1.6) was obtained only in THF/HMPA with Al/stainless steel electrodes.

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