The IR spectra of organolead compounds with the general formula R3PbC≡CR′ were obtained where R =CH3, C2H5; R′=H, CH=CH2, CH2Cl, Si(CH3)3, Sn(C2H5)3, Pb(C2H5)3, as well as the reaction products of trialkylplumbane with acetylenicα-oxygen-containing compounds.
The decrease in the vibration frequency of the acetylenic bond in lead-containing compounds is due primarily to an increase in the “metallic character” of the properties of lead.
The presence of lead does not lead to any significant changes in the vibrations of the remaining groups and atoms.
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Shostakovskii, M.F., Shergina, N.I., Ermolova, T.I. et al. IR spectra of organolead acetylenic compounds. Russ Chem Bull 19, 1475–1478 (1970). https://doi.org/10.1007/BF00853838
- General Formula
- Vibration Frequency
- Metallic Character
- Acetylenic Compound
- Acetylenic Bond