6533b828fe1ef96bd1288d39

RESEARCH PRODUCT

Über polygermane

Martin DrägerKarl HäberleDietolf Simon

subject

StereochemistryChemical shiftOrganic ChemistryCrystal structureNuclear magnetic resonance spectroscopyCarbon-13 NMRBiochemistryMedicinal chemistryInorganic ChemistryTrigonal bipyramidal molecular geometrychemistry.chemical_compoundchemistryMaterials ChemistryPhenyl groupMoleculePhysical and Theoretical ChemistryDigermane

description

Abstract The optimum conditions for selectively cleaving off two phenyl groups in Ge2Ph6 by trichloroacetic acid have been determined. Neither trihaloacetic acids nor HCl/AlCl3 nor reactive tetrahalides MCl4 are suitable reagents for cleaving one phenyl group alone. The 13C NMR chemical shifts of functional phenyl-mono- and -digermanes are given. The crystal structure of 1,2-bis(trichloroacetate)tetraphenyldigermane has been determined and refined to R = 0.048. The digermane bond is bridged by both acetates (distances GeGe 239.3(2), GeO 207.3(3) and 231.4(3) pm). The Ge atoms have trigonal bipyramidal coordination.

yearjournalcountryeditionlanguage
1984-05-01Journal of Organometallic Chemistry
https://doi.org/10.1016/0022-328x(84)80168-0