Germanium oxygen

The addition of mesityl nitrile oxide to stable derivatives of a germanethi-one21 and a germaneselone22 is closely related to the addition of nitrones. The reaction is regioselective again, with formation of the germanium-oxygen bond. 

Compounds containing germanium-oxygen double bonds which are transiently stable have emerged.167,168 A germanone which is temporarily stable in solution was prepared which undergoes intramolecular cyclization (Scheme 21), 7 and this species was also obtained from the cycloreversion of 72 (Scheme 22), as identified by its cyclization products.168... 

Hock, M., and H. R. Johnston .The germanium-oxygen system. J. chem. 

In 1992, Andrews and his coworkers attempted to characterize small high-temperatme molecules in the germanium/oxygen/sulfur system. In this system, only the monooxide, GeO, and the monosulfide, GeS, are well-known, both having been stndied in the gas phase by a variety of methods including electronic absorption and emission. 

Germanium-oxygen linkages are also possible Schumb and Smyth (1955) studied the partial hydrolysis of GeCl4 in ether, chloroform or w-pentane by adding water in GeCl4 HgO molar ratios from 5 1 to 1 1. Solid polymers were obtained with compositions close to GegOgClg, but an individual compound could not be isolated. Invariably hydrolysis ceased when the hydrochloric acid concentration of the aqueous phase reached about 6.5 M. 

---