Polygermoxanes suitable for biochemical purposes: II Linear trigermoxanes (high-viscosity oils)

✍ Scribed by Gilles Duverneuil; Pierre Mazerolles; Elisabeth Perrier

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 387 KB
• Volume: 9
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/aoc.590090107

✦ Synopsis

Abstract

Linear trigermoxanes, R^1^ RGeOGe(R^3^)~2~OGeRR^1^, a new series of organogermanium compounds, were synthesized by reaction of a lithium organogermanolate with a suitable organogermanium dihalide. With alkyl or phenyl substituents, these trigermoxanes are structurally unstable viscous oils, due to redistribution reactions. When R^3^ substituents are bulky groups, such as mesityl, trigermoxanes are thermally and structurally stable oils; depending on the R^1^ and R^2^ substituents their viscosities lie in the range 240 to more than 1500 cPo (mPa s) at 20°C. When both terminal germanium atoms are substituted with two mesityl groups, trigermoxanes are stable glassy solids.