199Hg and13C NMR spectra of bromine-substituted benzyl derivatives of mercury

Conclusions ¹⁹⁹Hg chemical shifts indicate that in dibenzyl derivatives of mercury and in benzylmercury bromides, there is, conjugation of the C-Hg bond with the orbitals of the aromatic ring, and also intramolecular coordination of the Hg atom with the Br atoms located in the o-position relative to the CH₂HgBr group, leading to the formation of a five-membered chelate ring. Such coordination interaction does not have an appreciable effect on the¹³C chemical shifts or the J_C-Hg constants.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 793–799, April, 1985.