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Organotin sulfides as precursors for nanometric γ‐Sn 2 S 3 powders: a study by 119 Sn Mössbauer spectroscopy and X‐ray powder diffraction
Author(s) -
Porto A. O.,
de Lima G. M.,
Pereira A. G.,
Batalha L. A. R.,
Ardisson J. D.
Publication year - 2004
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.554
Subject(s) - chemistry , mössbauer spectroscopy , orthorhombic crystal system , tin , tetragonal crystal system , crystallography , spectroscopy , x ray crystallography , microanalysis , powder diffraction , rutile , decomposition , scanning electron microscope , analytical chemistry (journal) , diffraction , crystal structure , materials science , organic chemistry , physics , optics , composite material , quantum mechanics
Organotinsulfides Sn 4 S 4 R 6 (R = methyl, n ‐butyl and phenyl) were employed as single‐source precursors for nanometric tin sulfides. The residues obtained after pyrolysis in hydrogen, nitrogen and oxygen were characterized by X‐ray diffraction, 119 Sn Mössbauer spectroscopy, scanning electron microscopy and X‐ray electron probe microanalysis. The results clearly showed the formation of tetragonal SnO 2 (rutile‐type structure) in oxygen and pure phase orthorhombic γ‐Sn 2 S 3 in nitrogen when Sn 4 Bu 4 S 6 (2) was employed as precursor. The 119 Sn Mössbauer spectroscopic results were very important in the elucidation of the decomposition process. Compound 2 is the best starting material for the process. Copyright © 2004 John Wiley & Sons, Ltd.