17O NMR studies on a series of manganese carbonyl derivatives with Sn-Mn bond(s).
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概要
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<SUP>17</SUP>O NMR spectra were measured for a series of manganese carbonyl derivatives, (CH<SUB>3</SUB>)<I><SUB>x</SUB></I>Cl<SUB>3−<I>x</I></SUB>Sn–Mn(CO)<SUB>5−<I>y</I></SUB>L<I><SUB>y</SUB></I> and (CH<SUB>3</SUB>)<SUB>3−<I>x</I></SUB>Sn[Mn(CO)<SUB>5−<I>y</I></SUB>L<I><SUB>y</SUB></I>]<SUB><I>x</I>+1</SUB>(L=P(OPh)<SUB>3</SUB>). <SUP>17</SUP>O chemical shifts were correlated with carbonyl stretching frequencies, <SUP>119</SUP>Sn-Mössbauer isomer shifts, and <SUP>55</SUP>Mn NMR chemical shifts. From these correlations, <SUP>17</SUP>O chemical shifts were interpreted in terms of σ- and π-electron acceptance of the tin moieties. It was also clarified that <SUP>17</SUP>O NMR spectroscopy is a direct method to study electronic nature around the oxygen atoms in metal cluster compounds such as Me<SUB>2</SUB>Sn[Mn(CO)<SUB>5</SUB>]<SUB>2</SUB> and MeSn[Mn(CO)<SUB>5</SUB>]<SUB>3</SUB>. <SUP>55</SUP>Mn NMR spectra were also measured for some of these compounds to corroborate the <SUP>17</SUP>O NMR results.
- 公益社団法人 日本化学会の論文
著者
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Yokoyama Yukihiro
Division Of Surgical Oncology Department Of Surgery Nagoya University Graduate School Medicine
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Onaka Satoru
Department Of Chemistry Nagoya Institute Of Technology
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Kawada Yuzo
Division of Applied Molecular Science, Institute for Molecular Science
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Sugawara Tadashi
Division of Applied Molecular Science, Institute for Molecular Science
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Iwamura Hiizu
Division of Applied Molecular Science, Institute for Molecular Science
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Yokoyama Yukihiro
Division of Applied Molecular Science, Institute for Molecular Science
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