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A novel route for the preparation of dimeric tetraorganodistannoxanes

Beckmann, Jens, Dakternieks, Dainis, Kuan, Fong Sheen and Tiekink, Edward R.T. 2002, A novel route for the preparation of dimeric tetraorganodistannoxanes, Journal of organometallic chemistry, vol. 659, no. 1-2, pp. 73-83, doi: 10.1016/S0022-328X(02)01705-9.

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Title A novel route for the preparation of dimeric tetraorganodistannoxanes
Author(s) Beckmann, Jens
Dakternieks, Dainis
Kuan, Fong Sheen
Tiekink, Edward R.T.
Journal name Journal of organometallic chemistry
Volume number 659
Issue number 1-2
Start page 73
End page 83
Publisher Elsevier Science B.V.
Place of publication New York, N.Y.
Publication date 2002-10-01
ISSN 0022-328X
1872-8561
Keyword(s) tin
tetraorganodistannoxane
119Sn-NMR spectroscopy
x-ray crystallography
Summary The reaction of polymeric diorganotin oxides, (R2SnO)n (R=Me, Et, n-Bu, n-Oct, c-Hex, i-Pr, Ph), with saturated aqueous NH4X (X=F, Cl, Br, I, OAc) in refluxing 1,4-dioxane afforded in high yields dimeric tetraorganodistannoxanes, [R2(X)SnOSn(X)R2]2, and in a few cases diorganotin dihalides or diacetates, R2SnX2. The reported method appears suitable for the synthesis of fluorinated tetraorganodistannoxanes. Identification of [R2(OH)SnOSn(X)R2]2 (R=n-Bu; X=Cl, Br) and [R2(OH)SnOSn(X)R2] [R2(X)SnOSn(X)R2] suggest a serial substitution mechanism starting from [R2(OH)SnOSn(OH)R2]2. X-ray crystal structure determinations are reported for [Me2(AcO)SnOSn(OAc)Me2]2 (29a), [i-Pr2(Br)SnOSn(Br)i-Pr2]2 (20a), [c-Hex2(F)SnOSn(F)c-Hex2]2 (5a) and [c-Hex2(F)SnOSn(Cl)c-Hex2]2 (36), respectively. These show the presence of a central (R2Sn)2O2 core that is connected, via the oxygen atoms, to R2Sn entities. Acetate (29a) or halides (5a, 20a, 36) complete the coordination about the tin centres.


Language eng
DOI 10.1016/S0022-328X(02)01705-9
Field of Research 039904 Organometallic Chemistry
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2002, Elsevier Science B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30001559

Document type: Journal Article
Collection: School of Biological and Chemical Sciences
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