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The first organogermanium compound, tetraethylgermane, synthesized by Winkler in 1887, [3] by the reaction of germanium tetrachloride with diethylzinc. More commonly, these Ge(IV) compounds are prepared by alkylation of germanium halides by organolithium and Grignard reagents, including surfaces terminated with Ge-Cl bonds. [4]
Organic germanium hydrides such as isobutylgermane ((CH 3) 2 CHCH 2 GeH 3) were found to be less hazardous and may be used as a liquid substitute for toxic germane gas in semiconductor applications. Many germanium reactive intermediates are known: germyl free radicals, germylenes (similar to carbenes), and germynes (similar to carbynes).
Two oxides of germanium are known: germanium dioxide (GeO 2, germania) and germanium monoxide, (GeO). [4] The dioxide, GeO 2 can be obtained by roasting germanium disulfide (GeS 2) or by allowing elemental germanium to slowly oxidze in air, [5] and is a white powder that is only slightly soluble in water but reacts with alkalis to form germanates. [4]
Propagermanium , also known by a variety of other names including bis(2-carboxyethylgermanium) sesquioxide and 2-carboxyethylgermasesquioxane, is an organometallic compound of germanium [2] that is sold as an alternative medicine. It is a polymeric compound with the formula ((HOOCCH 2 CH 2 Ge) 2 O 3) n.
Lithium aluminium germanium phosphate, typically known with the acronyms LAGP or LAGPO, is an inorganic ceramic solid material whose general formula is Li 1+x Al x Ge 2-x (PO 4) 3. [3] LAGP belongs to the NASICON (Sodium Super Ionic Conductors) family of solid conductors [3] and has been applied as a solid electrolyte in all-solid-state lithium ...
Germanium is used in high-speed computer chips, plastics and military applications such as night-vision devices as well as satellite imagery sensors. Gallium is used in radar and radio ...