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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]
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]
Company Sales Headquarters Industry Volkswagen: 254.0 Germany Automotive: Daimler: 150.8 Germany Automotive: FCA: 110.4 Italy United States Automotive: BASF: 103.9 Germany Chemicals ...
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).
China on Tuesday banned exports to the United States of the critical minerals gallium, germanium and antimony that have widespread military applications, escalating trade tensions the day after ...
Germane is the chemical compound with the formula Ge H 4, and the germanium analogue of methane. It is the simplest germanium hydride and one of the most useful compounds of germanium. Like the related compounds silane and methane, germane is tetrahedral. It burns in air to produce GeO 2 and water. Germane is a group 14 hydride.
The first example of organogermanes used in transition-metal-catalyzed cross-coupling reaction was reported in 2004. [1] However, due to the toxicity, low reactivity (compared with other Ar–[M] nucleophiles) and poor stability of ArGeCl 3, this reaction was demonstrated not to be synthetically applicable.
Zaporizhzhya Titanium-Magnesium Plant is the only [1] manufacturer of titanium sponge [2] in Europe. [3] ZTMP (or ZTMK) [4] is located in Zaporizhzhya, Ukraine, and the plant produces titanium ingots, as well as slabs that are widely used as a structural material in nuclear power, chemical engineering, shipbuilding, and many other industries.