1066-63-3

Basic information

• Product Name: dimethyl-lambda~2~-germane - trimethylgermanyl (1:2)
• CAS NO: 1066-63-3
• Molecular Formula: C₈H₂₄Ge₃
• Molecular Weight: 338.1962
• Mol File: 1066-63-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: dimethyl-lambda~2~-germane - trimethylgermanyl (1:2)(CAS DataBase Reference)
• NIST Chemistry Reference: dimethyl-lambda~2~-germane - trimethylgermanyl (1:2)(1066-63-3)
• EPA Substance Registry System: dimethyl-lambda~2~-germane - trimethylgermanyl (1:2)(1066-63-3)

Safety Data

• Hazardous Substances Data: 1066-63-3(Hazardous Substances Data)

Upstream product

• 32284-96-1 phenylpentamethyldigermane 
• 90030-12-9 benzoylbromodimethylgermane 
• 1730-66-1 methylgermanium bromide 
• 103-29-7 1,1'-(1,2-ethanediyl)bisbenzene 
• 108-88-3 toluene 
• 76054-64-3 7,7-dimethyl-1,4,5,6-tetraphenyl-2,3-benzo-7-germanorbornadiene 
• 620-05-3 iodomethylbenzene 
• 993-52-2 hexamethyldigermane 
• 3972-25-6 tert-butyl alcohol-d 
• 137482-81-6 benzylpentamethyldigermane 

Downstream Products

• 1449-63-4 trimethylgermane 
• 865-52-1 tetramethylgermane 
• 993-52-2 hexamethyldigermane 
• 54772-55-3 pentamethyldigermane 
• 14938-41-1 decamethyltetragermane 
• 1529-47-1 chlorotrimethylgermane 
• 22640-93-3 chloropentamethyldigermane 

Relevant articles and documents

Photochemical Reactions of Vinyl-, Styryl- and Benzyl-Substituted Digermanes

Photochemical reactions of vinyl-, styryl- and benzyl-substituted digermanes by chemical trapping experiments.Photolysis of vinylpentamethyldigermane afforded 1-trimethyl-2-(pentamethyldigermyl)ethane as a major product, and styrylpentamethyldigermanes gave mainly styryltrimethylgermane.On the other hand, photolysis of benzyl-substituted digermanes (benzylpentamethyldigermane and 1,2-dibenzyltetramethyldigermane) gave hydrogermanes and hydrodigermanes as main products, respectively.These products were derived from germyl radicals generated by photoinduced homolysis of the germanium-germanium bond.In carbon tetra chloride (CCl4), these germyl radicals were converted to the corresponding chlorogermanes by abstraction of a chlorine atom.Germylene species were also to be evolved from such photolyses.

Chemistry of heavy carbene analogues R2M (M = Si, Ge, Sn). 12. Concerted and nonconcerted insertion reactions of the germylene Me2Ge into the carbon-halogen bond

During the reaction of Me2Ge with CCl3X (X = Cl, Br), PhCH2X (X = Br, I), and Ph2CHCl, 1H CIDNP is observed in the products of net insertion of Me2Ge into the carbon-halogen bond and in Me2GeX2 (X = Cl, Br). It is concluded that a two-step radical reaction takes place by an abstraction-recombination mechanism. No reaction takes place with alkyl halides that have a C-X bond dissociation energy of more than about 70 kcal/mol. Me2Ge is generated thermally at 70-95°C or photochemically from the 7-germabenzonorbornadiene 1 and reacts in both cases in the singlet state. The activation energy for forming Me2Ge from 1 is 19 kcal/mol for the reaction with CCl4. Insertion products are also formed with the alkenyl halides CH2=CHCH2X, PhCH=CHX (X = Cl, Br), and 2-bromobut-2-ene, but without showing CIDNP effects. Since Me2GeX2 was not found either, Me2Ge reacts in these cases in a nonradical manner. It does not react with 1-chlorocyclohexene, but it does react with Me2GeX2 under formation of digermanes and/or oligogermanes without CIDNP.