Mössbauer Effect of <SUP>119</SUP>Sn in Some Organotin Compounds
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概要
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Mossbauer, NMR, and infrared spectroscopy have been applied to the study of a number of organometallic tin compounds containing one or more tin manganese pentacarbonyl bonds. For the (CH<SUB>3</SUB>)<SUB>4−<I>n</I></SUB>Sn[Mn(CO)<SUB>5</SUB>]<I><SUB>n</SUB></I> series (<I>n</I>=0 to 3) a linear relation between the Mössbauer isomer shift and the number of manganese pentacarbonyl ligand was consistent with the partial isomer shift theory of <SUP>119</SUP>Sn. A linear relation between the Mössbauer isomer shift and the methyl proton NMR chemical shift was also observed for this series. A plot of the isomer shift (δ<SUB>0</SUB>) <I>versus</I> the number of <I>p</I> holes (<I>h<SUB>p</SUB></I>) for organotin manganese pentacarbonyl compounds established a relation δ<SUB>0</SUB>=1.23+0.53<I>h<SUB>p</SUB></I> for <I>sp</I><SUP>3</SUP> hybridized tin. From isomer shift systematics a value of (<I>ΔR</I>⁄<I>R</I>) for <SUP>119</SUP>Sn was calculated to be 1.2×10<SUP>−4</SUP>.
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著者
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Wynter Clive
Environmental Sciences Department, Rutgers University
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Chandler Louis
Environmental Sciences Department, Rutgers University