13969-30-7Relevant academic research and scientific papers
On Polygermanes, XVIII. Synthesis of the Multifunctional Digermanes Ph6-nGe2Cln (n = 2, 3, 4) and of Ph2GeCl2 under Pressure
Haeberle, Karl,Draeger, Martin
, p. 323 - 329 (2007/10/02)
Reaction of Ph6Ge2 with liquid HCl under pressure leads to di-, tri- and tetrachloro phenyldigermanes.The yield of higher chlorinated products increases with increasing pressure.The analogous reaction of Ph4Ge yields Ph2GeCl2 quantitatively.The Ge-Ge bond is most unstable in the case of Ph3Ge2Cl3 both chemically and thermally.The crystal structure of Ph2Ge2Cl4 has been determined (R = 0.057), Ge-Ge 241.3(1) pm. - Keywords: Functional Digermanes, Synthesis, Structure
EIN FUENFGLIEDRIGER GERMANIUM-SAUERSTOFF-RING MIT GERMANIUM-GERMANIUM-BINDUNG: 1,1,2,2-TETRAPHENYL-4,4-DI-t-BUTYL-1,2,4-TRIGERMA-3,5-DIOXA-CYCLOPENTAN
Puff, Heinrich,Heising, Heribert,Schuh, Willi,Schwab, Werner
, p. 343 - 350 (2007/10/02)
The reaction of Ph4Ge2Cl2 with t-Bu2Ge(OH)2 leads to the novel organogermanium oxygen compound Ph4-t-Bu2Ge3O2.The germanium and oxygen atoms form an almost planar five-membered ring with a germanium-germanium bond.
UEBER POLYGERMANE XIII. PERGERMA-ANALOGA VON DIOXAN Ph8Ge4X2 UND ETHYLENACETATAL Ph6Ge3X2 (X=O,S,Se)
Draeger, Martin,Haeberle, Karl
, p. 183 - 196 (2007/10/02)
2 reacts with wet acetone to give Ph8Ge4O2, and with dry H2S to give Ph8Ge4S2.With Na2S or NaHSe, Ph4Ge2Cl2 yields Ph8Ge4S2 and Ph8Ge4Se2, respectively.Only Ph6Ge3S2 or Ph6Ge3Se2, but no Ph6Ge3O2, can be obtained from a mixture of Ph4Ge2Cl2, Ph2 GeCl2 and Na2S or NaHSe.The mass spectra show a high stability of the cations Ph6Ge3S2= and Ph6Ge3Se2+.The 13C NMR phenyl signals for C(ipso) shift to high field in the series O, S, Se and 6-membered, 5-membered rings.The crystal structures of Ph8Ge4O2 (R=0.031) and Ph6Ge3S2 (R=0.036) have been determined.The 6-membered ring Ge4O2 has the chair conformation (total symmetry of the molecule is approximately C2h, distances Ge-Ge 244.8(1) and Ge-O 178-179 pm, angle Ge-O-Ge 126.9(1) deg).The 5-membered ring Ge3Se2 has the half-chair conformation (total symmetry of the molecule is approximetely C2 distances Ge-Ge 241.5(1) and Ge-Se 236-237 pm).
