The synthesis, characterization, and coordination chemistry of a series of new N-heterocylic thione (NHT) and selone (NHSe) ligands derived from a saturated 2,4-benzodiazepine core and featuring bulky aryl N-substituents will be described in this presentation. More specifically, the reactivity of the six SBzDzArE ligands (Ar = Xy, Mes, Dipp; E = S, Se) towards closed-shell (d10) metal ions such as Hg(II) and Ag(I) has been explored. An unexpected structural diversity has been found for the mercury complexes, including the formation of neutral (SBzDzArE)HgX2 derivatives (X = Cl, Br, I) and charged species with a variety of stoichiometries, for instance [Hg(SBzDzArE)2][Hg2X6] and [Hg(SBzDzArE)2X][HgX3]. In contrast, all the silver complexes isolated so far appear to have the same [Ag(SBzDzArE)2]X composition (X = NO3, BF4, ClO4). The molecular structures of these complexes will be compared with those of closely related compounds containing other NHT and NHSe ligands.

Coordination chemistry of N-heterocyclic benzodiazepine chalcogenones

ACS Spring Meeting 2021

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.