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Self-assembled chloro-bridged metallo-prismatic cations of the general formula [M<sub>6</sub> (η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)<sub>6</sub> (μ<sub>3</sub>-tpt)<sub>2</sub> (μ-Cl)<sub>6</sub>]<sup>6+</sup> (M = Rh, Ir; tpt = 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine)
Auteur(s)
Date de parution
2007
In
Inorganic Chemistry Communications, Elsevier, 2007/10/12/1489-1492
Résumé
Two cationic pentamethylcyclopentadienyl metal-based hexanuclear complexes with trigonal prismatic architecture have been synthesised through a two-step strategy. The dinuclear complexes [M(η<sup>5</sup>- C<sub>5</sub>Me<sub>5</sub>)(μ-Cl)Cl]<sub>2</sub> (M = rhodium and iridium) react with 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine (tpt) in dichloromethane to give the trinuclear complexes [Rh<sub>3</sub> (η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)<sub>3</sub> (μ<sub>3</sub>-tpt)Cl<sub>6</sub>] (<b>1</b>) and [Ir<sub>3</sub>(η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)<sub>3</sub> (μ<sub>3</sub>-tpt)Cl<sub>6</sub>] (<b>2</b>), respectively. Addition of silver triflate to <b>1</b> and <b>2</b> in dichloromethane connects two identical triangular panels to form the hexanuclear metallo-prismatic cations [Rh<sub>6</sub> (η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)<sub>6</sub> (μ<sub>3</sub>-tpt)<sub>2</sub> (μ-Cl)<sub>6</sub>]<sup>6+</sup> (<b>3</b>) and [Ir<sub>6</sub> (η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)<sub>6</sub> (μ<sub>3</sub>-tpt)<sub>2</sub> (μ-Cl)<sub>6</sub>]<sup>6+</sup> (<b>4</b>), respectively. Cations <b>3</b> and <b>4</b> have been isolated as their triflate salts and characterised by <sup>1</sup>H NMR, IR and UV/visible spectroscopy.
Identifiants
Type de publication
journal article
