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Arachchige, Kasun Sankalpa Athukorala
in Cooperation with on an Cooperation-Score of 37%
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article
Spirocyclic, macrocyclic and ladder complexes of coinage metals and mercury with dichalcogeno P2N2-supported anions
Abstract
<p>Metathetical reactions of alkali–metal derivatives of the dianion [<sup>t</sup>BuN(Se)P(μ-N<sup>t</sup>Bu)<sub>2</sub>P(Se)N<sup>t</sup>Bu]<sup>2−</sup> (2Se<sup>2−</sup>) with Ag(NHC)Cl, Ag[BF<sub>4</sub>], AuCl(THT) and HgCl<sub>2</sub>, as well as the reaction of 2S<sup>2−</sup> with AuCl(THT) were investigated. The observed products all incorporate the monoprotonated ligands 2SeH<sup>− </sup>or 2SH<sup>−</sup> in a variety of structural arrangements around the metal centres, including tetrameric and trimeric macrocycles [Ag and Au (E = Se)], a ladder (Au, E = S) and a spirocycle (Hg); the ladder contains both the dianion 2S<sup>2−</sup> and the monoanion 2SH<sup>−</sup> as ligands linking three Au<sub>2</sub> units. All complexes have been characterised in the solid state by single crystal X-ray analyses and in solution by multinuclear (<sup>1</sup>H, <sup>31</sup>P and <sup>77</sup>Se) NMR spectra.</p>