N-heterocyclic thione (NHT) and selone (NHSe) donor groups have an extensive coordination chemistry, both as simple monodentate ligands and as versatile building blocks in a variety of chelating ligands. This presentation will outline recent advances in the synthesis and characterization of closed-shell (d<sup>10</sup>) metal complexes supported by new N-heterocyclic thione (NHT) and selone (NHSe) ligands. More specifically, an overview of the reactivity of copper(I), gold(I), and mercury(II) ions towards NHT and NHSe ligands bearing bulky aryl substituents on both nitrogen atoms will be presented, including the isolation of coordinatively unsaturated species [<i>e.g.,</i> two-coordinate copper(I) and three-coordinate mercury(II) complexes]. In addition, the effect of ring size and backbone saturation on the reactivity and molecular structures of such complexes will de described. Last but not least, recent advances in the reactivity of thione and selone derivatives of caffeine and related molecules will be outlined in this presentation.

N-heterocyclic thione and selones: New tricks for old dogs

253rd National Meeting (2017)

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