57482-41-4Relevant articles and documents
Synthesis of Triscyclopentadienyl(triphenylgermyl)uranium and Facile Isonitrile Insertion into the Uranium-Germanium Bond
Porchia, Marina,Ossola, Franco,Rossetto, Gilberto,Zanella, Pierino,Brianese, Nicola
, p. 550 - 551 (1987)
The uranium-germanium bonded complex (cp)3UGePh3 (1) (cp = η5-C5H5) has been prepared from (cp)3UCl and KGePh3 and fully characterized; it reacts readily with 2,6-dimethylphenyl isocyanide to give the carbamoyl insertion product (cp)3
Ueber gemischte Gruppe 14-Gruppe 14-Bindungen. V. Sechs Perphenylierte Propan-Analoga Ph3M-M'Ph2-M''Ph3 (M, M', M'' = Si/Ge): ein Beitrag zum Elektronegativitaetsunterschied zwischen Silicium und Germanium
Charisse, Michael,Mathes, Manfred,Simon, Dietolf,Draeger, Martin
, p. 39 - 48 (2007/10/02)
The six title compounds have been synthesized from Li/K-Si/GePh3 and chloride precursors in THF, DMF or diethyl ether at low temperature.The six compounds crystallize isomorphously in the space group Pbca with ordered arrangement for the four symmetrical cases (Si-Si 2.394, Si-Ge 2.412, Ge-Ge 2.440 Angstroem) and statistical alignment for the two asymmetrical chains; angle range 116.6-123.3 deg.Replacement of Si by Ge atoms leads to low field NMR chemical shifts for 13Cipso atoms and for directly bonded 29Si atoms.This is in accordance with an enhanced electronegativity of germanium in comparison with silicon.UV/Vis and IR/Raman data are given.
