Premium
119 Sn Solid‐State NMR of Tin Sulfides. Evidence of Polytypism in SnS 2
Author(s) -
Pietrass Tanja,
Taulelle Francis
Publication year - 1997
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/(sici)1097-458x(199706)35:6<363::aid-omr79>3.0.co;2-p
Subject(s) - tin , chemistry , crystallite , octahedron , crystallography , magic angle spinning , anisotropy , solid state , crystal structure , nuclear magnetic resonance spectroscopy , stereochemistry , optics , physics , organic chemistry
The 119 Sn magic angle spinning NMR spectra of the three tin sulfides SnS, SnS 2 and Sn 2 S 3 are discussed with respect to results from x‐ray structure analysis. The distortion from an octahedral environment of tin in SnS and Sn(II) in Sn 2 S 3 is reflected in the large chemical shift anisotropy. The denser coordination sphere of Sn(IV) in SnS 2 in comparison with Sn 2 S 3 is reflected in the upfield shift observed for SnS 2 . With the same argument, the shift of Sn(II) in the sulfides under study is generally much lower than that of Sn(IV). The 119 Sn high‐resolution solid‐state NMR signal of SnS 2 displays a fine structure which is assigned to different polytypic regions in the crystallites. © 1997 John Wiley & Sons, Ltd.