19F NMR studies of the comparative electronegativity of the Ph3E groups (E=C, Si, Ge, Sn, or Pb) in Ph3E derivatives of tris(4-fluorophenyl)stannanethiol
摘要:
Compounds (4-FC6H4)(3)SnSEPh3 (E = C, Si, Ge, Sn, or Pb) were synthesized or generated in solution. The data on the comparative electronegativity of the Ph3E groups were obtained from the results of F-19 NMR spectroscopy. It was established that, except for E = C, the electronegativity changes in parallel with the absolute electronegativity of the central atom. Possible reasons for the deviation observed are discussed.