Investigation into the formation of heteronuclear clusters of formula [ Ru6C(CO)16Ag2X 2]2- (X = Cl, Br or I)

Reaction of [Ru<sub>6</sub>C(CO)<sub>16</sub>]<sup>2−</sup> with an excess of AgX (X = Cl, Br or I) affords heteronuclear clusters of formula [{Ru<sub>6</sub>C(CO)<sub>16</sub>Ag<sub>2</sub>X}<sub>2</sub>]<sup>2−</sup> in 80% yield, which for X = I and X = Br/Cl were crystallographically characterised. The formation of the cluster was followed in solution using electrospray ionisation mass spectrometry (ESI-MS), which revealed the presence of a wide range of clusters with the general formula [{Ru<sub>6</sub>C(CO)<sub>16</sub>}<sub><i>x</i></sub>Ag<sub><i>y</i></sub>X<sub><i>z</i></sub>]<sup>(2<i>x−y</i>+<i>z</i>)−</sup> where <i>x</i> = 1 or 2, <i>y</i> = 1, 2, 3 or 4 and <i>z</i> = 0, 1 or 2. The high yield of the product despite the evident complicated solution speciation is attributed to selective crystallisation of the observed compound driving the equilibrium toward this product.


Published in:
JOURNAL OF CLUSTER SCIENCE, 18, 1, 303-318
Year:
2007
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 Record created 2007-06-13, last modified 2018-03-17


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