Electronic effects in the cyclopentadienyl ring. The 13C NMR spectraof monosubstituted ferrocenes |
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Authors: | AA Koridze PV Petrovskii AI Mokhov AI Lutsenko |
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Institution: | Institute of Organo-Element Compounds, Academy of Sciences, Moscow U.S.S.R. |
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Abstract: | The chemical shifts of C(2,5) and C(3,4) carbons in the 13C NMR spectra of monosubstituted ferrocenes have been assigned using deuterium labelling. An analogy is observed between the shielding of C(2,5) and C(3,4) carbons of ferrocene derivatives and ortho- and para-carbons of benzene derivatives withthe same substituents. Electron-density distribution in the cyclopentadienyl ring is discussed on the basis of 13C NMR data. |
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