ISSN:
0268-2605
Keywords:
Mössbauer
;
Dibutyltin dichloride
;
PVC
;
Polymers
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Variable-temperature Sn-119m Mössbauer studies of tin(IV) chloride (SnCl4) and dibutyltin dichloride (Bu2SnCl2) when dispersed in a poly(vinyl chloride) (PVC) matrix have been interpreted using a Debye model. Recoilless fractions have been determined which indicate that at 80 K the Mössbauer technique is nearly three times as sensitive to the presence of SnCl4 compared with Bu2SnCl2 within the poly(vinyl chloride) matrix. These observations have been explained in terms of structural changes occurring on dispersion in the polymer matrix which result in the tin atom in tin(IV) chloride becoming six-coordinate whereas that in dibutyltin dichloride reduces its coordination to five. The implications of these results for future applications of Mössbauer spectroscopy to the study of organotin compounds present in polymers are considered.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aoc.590010405
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