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Polygermoxanes suitable for biochemical purposes: II Linear trigermoxanes (high‐viscosity oils)
Author(s) -
Duverneuil Gilles,
Mazerolles Pierre,
Perrier Elisabeth
Publication year - 1995
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/aoc.590090107
Subject(s) - chemistry , viscosity , thermodynamics , chemical engineering , physics , engineering
Linear trigermoxanes, R 1 R 2 2 GeOGe(R 3 ) 2 OGeR 2 2 R 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.