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Organosilicon hypersilylchalcogenolates and related compounds |
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| Authors: | Heike Lange Horst Borrmann |
| Institution: | a Institut für Anorganische Chemie, TU Bergakademie Freiberg, Leipziger Straße 29, D-09596 Freiberg, Germany b Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, D-01187 Dresden, Germany c Institut für Chemie, TU Chemnitz, Straße der Nationen 62, D-09111 Chemnitz, Germany |
| Abstract: | Reaction of potassium hypersilylchalcogenolates (Me3Si)3SiEK (E = S, Se, Te) with organochlorosilanes R4 − xSiClx (R = Me, Ph; x = 1-4) and methylchlorodisilanes (Si2Me5Cl, 1,2-Si2Me4Cl2) yields organosilicon hypersilylchalcogenolates (Me3Si)3SiE]xSiR4 − x (x = 1-4) and (Me3Si)3SiE]xSi2Me6 − x (x = 1, 2). A partial substitution product, (Me3Si)3SiSe]2SiPhCl (2) has been obtained by reaction of PhSiCl3 with 1.5 equivalents (Me3Si)3SiSeK. Besides characterization by 1H, 13C, 29Si, 77Se and 125Te NMR spectroscopy the compounds (Me3Si)3SiTe]2SiPh2 (1), (Me3Si)3SiSe]2SiPhCl (2) and (Me3Si)3SiSe]2Si2Me4(3) have also been analyzed by crystal structure analyses.Starting from (Me3Si)5Si2K treatment with sulfur gave the highly branched potassium heptasilanylthiolate (Me3Si)5Si2SK. Reactions with methylchlorosilanes Me4 − xSiClx (x = 1, 2, 3) yielded organosilicon heptasilanylthiolates (Me3Si)3Si-(Me3Si)2Si-S]xSiMe3 − x. |
| Keywords: | Hypersilyl Chalcogene Silicon |
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