Mössbauer parameters of adducts of tin(IV) halides with amines, nitriles, phosphines, and arsines
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 2049-2054
- https://doi.org/10.1039/j19710002049
Abstract
Mössbauer parameters are reported for the adducts SnX4,L (L = NMe3, X = Cl or Br; L = PPh3 or Ph2PCH2PPh2, X = Cl) and SnX4,2L (L = NMe3, X = Cl, Br, or I; L = NEt3; X = F; L = Py, PBun 3, AsPh3, or AsEt3, X = Cl or Br; L = MeCN, PhCN, PPh3, PPh2Me, PPhEt2, or PEt3, X = Cl). Variations in chemical shifts for the adducts are discussed in terms of s character of the bonds to tin. Of the nitrogen donors, only the nitriles give rise to resolved quadrupole splitting. Triphenyl-phosphine and -arsine adducts give single-line spectra but quadrupole splitting is induced by replacing phenyl groups by alkyl groups. The five-co-ordinate adducts SnCl4,NMe3 and SnBr4,NMe3 give narrow-line spectra which exhibit no quadrupole splitting. I.r. and Raman data in the range 400–100 cm.–1 are reported for the 1 : 2 phosphine and arsine adducts. Attempts to prepare adducts of tin(IV) chloride and bromide with triphenylstibine resulted in reduction of the metal to tin(II).Keywords
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