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Factors Influencing the Synthesis of Polyorganogermanes by Electroreductive Coupling of Di‐n‐hexyldichlorogermane
Author(s) -
Martins L.,
Aeiyach S.,
Jouini M.,
Lacaze P.C.,
Satgé J.,
Rima G.
Publication year - 1997
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/(sici)1099-0739(199707)11:7<583::aid-aoc613>3.0.co;2-#
Subject(s) - chemistry , coupling (piping) , metallurgy , materials science
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. © 1997 John Wiley & Sons, Ltd.