83272-65-5Relevant academic research and scientific papers
Permethylheteroatomcyclopolysilane mit Heteroatomen der VI. Hauptgruppe. Darstellung und spektroskopische Eigenschaften
Stueger, Harald,Eibl, Markus,Hengge, Edwin,Kovacs, Ilona
, p. 1 - 15 (1992)
Group VI permethylheterocyclopolysilanes (SiMe2)n X with n = 4,5,6 and X = O, S, Se have been synthesized from α,ω-dichloropolysilanes and Li2S/Li2Se or by simple hydrolysis.From UV spectroscopic results considerable contributions of the heteroatom lone pair electrons to low-energy electron transitions can be derived.Si-Si NMR coupling constants satisfactorily correlate with heteroatom electronegativities, indicating dominant Fermi contact contributions to the magnitude of the corresponding coupling constants.
DARSTELLUNG VON 2,3,4,5-TETRAKIS(DIMETHYL)SULFOCYCLOPENTASILAN UND 2,3,4,5-TETRAKIS(DIMETHYL)SELENACYCLOPENTASILAN
Hengge, Edwin,Schuster, Hans Georg
, p. C17 - C20 (1982)
Octamethylcyclotetrasilan reacts with elemental sulfur or selenium in benzene at 80 deg C to give the five-membered ring products, cyclo-(Me2Si)4S and cyclo-(Me2Si)4Se.
GROUP VI HETEROATOMCYCLOPOLYSILANES SYNTHESES AND NMR PROPERTIES
Stueger, H.,Eibl, M.,Kovacs, I.
, p. 29 - 32 (2007/10/02)
Group VI heterocyclopolysilanes have been synthesized from α,ω-dichloropolysilanes and Li2S/Li2Se or by simple hydrolysis.Si-Si NMR coupling constants correlate satisfactorily with electronegativities of the heteroelements indicating dominant Fermi contact contributions.
