62120-68-7Relevant articles and documents
Selective synthesis of tetraarylgermanes and triarylgermanium halides
Wolf, Melanie,Falk, Astrid,Flock, Michaela,Torvisco, Ana,Uhlig, Frank
, p. 143 - 149 (2017/09/29)
A series of novel and previously published tetraarylgermanes aryl4Ge (aryl = m-tolyl, 3,4-xylyl, 3,5-xylyl, 2-naphthyl) and triarylgermanium halides aryl3GeX (aryl = o-tolyl, 2,4-xylyl, 2,5-xylyl, 2,6-xylyl, 1-naphthyl, 2,4,6-mesityl, X = Cl, Br) were synthesized and characterized. All solids were investigated using single crystal X-ray diffractometry in order to elucidate the molecular structures. Effects of the substitution pattern of the aryl residue employed have been studied in terms of the impact on the product formation.
Etude du transfert monoelectronique entre des germylanions et des piegeurs de spin dia et paramagnetiques
Riviere, P.,Castel, A.,Desor, D.,Abdennadher, C.
, p. 51 - 60 (2007/10/02)
Reactions between organogermyllithium R3GeLi and several substrates favoring SET reactions (3,5-di-t-butyl-orthoquinone, fluorenone, tetracyanoquinodimethane, 2,4,6-tri-t-butylnitrosobenzene, etc.) lead mainly to the formation of digermanes and O- or N-germyl adducts.All these reactions seem to proceed principally by single-electron transfer.An ESR study of the reaction shows transient organic radical anion formation and germanium-centred radicals R3Ge.The prepondancy of this mechanism can be demonstrated by the reaction between R3GeLi and a paramagnetic quinonic species, the galvinoxyl radical: the latter is almost completely transformed into a diamagnetic anion.Digermanes mainly produced in these reactions are formed via radicalar duplication as well as lithiogermolysis of reaction adducts.
Synthesis, reactivity and crystal structure of trimesitylgermylamine, Mes3GeNH2
Riviere-Baudet, Monique,Morere, Alain,Britten, James F.,Onyszchuk, Mario
, p. C5 - C8 (2007/10/02)
Trimesitylgermylamine, Mes3GeNH2, prepared in high yield by the coupling of Mes3GeCl (Mes = 2,4,6-Me3C6H2) with NaNH2 or LiNH2, has been fully characterized by 1H and 13C NMR, IR and mass spectrometry.It is a rare example of a stable primary germylamine, melting at 166 deg C, which is only slowly cleaved by H2O, CH3OH, HCl or phenol, indicating tht the central Ge atom is protected from attack by the mesityl groups.Unlike other germylamines, Mes3GeNH2 reacts with tBuCOCl to give the N-substituted amide, Mes3GeNHCOtBu, rather than Mes3GeCl.Preliminary X-ray crystallographic analyses reveal that the Ge atom has approximate tetrahedral coordination with an average Ge-C bond length of 1.978(3) Angstroem and a Ge-N bond length of 1.854(3) Angstroem, and crowding around the Ge atom so that it is shielded from attack by approaching reactants.
