ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Contributions to the Chemistry of Silicon-Sulfur Compounds. XXXV. The Dimeric Thallium(I)-tri-tert-butoxysilanethiolateThallium(I)-tri-tert-butoxysilanethiolate is formed as a dimer by reaction of tri-tert-butoxysilanethiol with TlNO3. The compound crystallizes as colourless triclinic plates. F.I. mass spectra show only the mass of the dimeric species (m/e = 968), in the E.I. mass spectra, however, also the peak for the monomeric unit (m/e = 484) is observed. The molecule is of 1/Ci symmetry. The central four-membered ring is plane, the bond distances and angles therein are d(Tl—S) = 289 pm and S/Tl/S = 91.5°. The Tl atoms are additionally coordinated by an oxygen atom of the tri-tert-butoxysilyl group (d(Tl—O) = 280 pm). The mean bond angle at the threebonded sulfur atom was found to be 90° (d(S—Si) = 207.8 pm). Related details of the structure are discussed (space group P1; a = 927.5 pm, b = 1395.1 pm, c = 882.1 pm; α = 108.43°, β = 116.77°, γ = 90.98°; Z = 2; R = 0.032; 2887 reflections hkl).
Notes:
Thallium(I)-tri-tert-butoxysilanthiolat bildet sich als Dimeres bei der Umsetzung von Tri-tert-butoxysilanthiol mit TINO3. Die Verbindung kristallisiert in farblosen, triklinen Plättchen. Im F.I.-Massenspektrum wird nur die Molekülmasse des Dimeren (m/e = 968), im E.I.-Massenspektrum zusätzlich die Masse des Monomeren (m/e = 484) beobachtet. Das Molekül besitzt die Symmetric 1-Ci. Der zentrale viergliedrige Tl2S2-Ring ist planar mit d(Tl—S) = 289 pm und S/Tl/S = 91,5°. Die Tl-Atome sind zusätzlich von einem O-Atom des tri-tert-butoxysilyl-Substituenten koordiniert (d(Tl—O) = 280 pm). Die Bindungswinkel am dreibindigen Schwefel betragen im Mittel 90° (d(S—Si) = 207,8 pm). Einzelheiten der Struktur werden im Zusammenhang diskutiert (Raumgruppe P1; a = 927,5 pm, b = 1395,1 pm, c = 882,1 pm, α = 108,43°, β = 116,77°, γ = 90,98°; Z = 2, R = 0,032; 2887 Reflexe hkl).
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19855311220
