ISSN:
1434-1948
Keywords:
Tin
;
Silicon
;
Chalcogens
;
Cluster compounds
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Reaction of tin(II) chloride with RNa(THF)2 (R = tBu3Si) in THF at -30 °C led to a complex reaction mixture, from which the compounds R4Sn4(THF)2, R2SnSnR2 (5), R-R (7), and a brownish black compound 6 were isolated. In toluene as solvent, the zwitterionic distannene 5 was obtained together with 7 and 6 which upon treatment with Et3PX, furnished the cluster compounds (RSnX)4 (10: × = Se; 11: × = Te). The X-ray structure analyses of the isotypic compounds 10 and 11 revealed that the tin atoms occupy the corners of an undistorted tetrahedron with weak tin-tin interactions. The chalcogen atoms form a plane which bisects the Sn4 tetrahedron.
Type of Medium:
Electronic Resource
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