13892-00-7

Upstream product

• 1675-58-7 diphenylgermane 
• 594-19-4 tert.-butyl lithium 
• 2875-92-5 phenylgermane 
• 16853-85-3 lithium aluminium tetrahydride 
• 1453070-94-4 Br(GePh₂)₄Br 
• 13891-99-1 1,1,2,2-tetraphenyl 1,2-digermane 
• 37044-16-9 tetraphenyldigermanium dichloride 
• 120154-42-9 diphenylhydrogermyllithium 
• 121-44-8 triethylamine 
• 2117-71-7 octaphenylcyclotetragermane 

Relevant academic research and scientific papers

Synthesis, structure, and properties of the hexagermane Pri 3Ge(GePh2)4GePri3

The synthesis of the hexagermane Pri3Ge(GePh 2)4GePri3 was achieved starting from the cyclotetragermane (Ph2Ge)4.Ring-opening of (Ph 2Ge)4 with B

A luminescent and dichroic hexagermane

The hexagermane Pri3Ge(GePh2) 4GePri3 has been synthesized and is not only the first such linear oligogermane to be structurally characterized but also is the first such compound to exhibit fluorescence and dichroic properties when observed under different orientations of plane polarized visible light.

Formation and ring expansion of germaplatinacycles via dehydrogenative Ge-Ge and Ge-Pt bond-forming reactions

The bis(germyl)platinum complex [Pt(GeHPh2)2(dmpe)] (1) (dmpe= l,2-bis(dimethylphosphino)ethane) reacts with a small excess Of H2GePh2 at 90 °C to produce four-membered germaplatinacycle [Pt(GePh2GePh2GePh2)(dmpe)] (2). Further reaction of 2 with excess H2GePh2 at 90 °C forms tetragermaplatinacyclopentane [Pt(GePh2GePh 2GePh2GePh2)(dmpe)] (3), while 3 is obtained also by the direct reaction of excess H2GePh2 with 1 for a prolonged period. Complexes 1-3 were characterized by X-ray crystallography and NMR spectroscopy. Germaplatinacycles 2 and 3 react with H3GePh to cause cleavage of the Pt-Ge bonds and formation of the oligogermanes H(GePh 2)3H and H(GePh2)4H respectively.

New (diarylgermyl)lithiums

The new (diarylgermyl)lithiums R2GeHLi (2; R = phenyl, mesityl) were prepared in good yields by hydrogermolysis reactions of tert-butyllithium in THF. The stability of compounds 2 depends on the nature of the R group and the solvent. For R = Ph, in the presence of an amine (Et3N or Et2NMe), the same reaction leads to the formation of the polygermanes H(GePh2)nH (n = 2-4). The characterization of compounds 2 by IR and 1H and 13C NMR spectroscopy and their complexation with a crown ether are also reported. They are characterized by deuterolysis and alkylation reaction (with MeI and Me2SO4). Their germylation reactions with Ge-Cl reagents constitute a convenient way for synthesizing organo-hydropolygermanes. Compounds 2 also react with acyl chlorides to give new germyl ketones, R2HGeCOR′, and the unexpectedly stable β-germyl diketone Ph2Ge(COMes)2.

Arylhydrogermyllithiums: synthese et applications

New organohydrogermyllithium are prepared in good yields from hydrogermolysis reactions with t-butyllithium in THF.Alkylation and germylation of the germanium-lithium bond in these compounds are efficient reactions and a convenient way for synthesis of organohydropolygermanes.These reagents are also useful for the formation of unknown hydrogermylmagnesium compounds.