The first non-carbido decaruthenium cluster; synthesis and X-ray structure analysis of [H2Ru10(CO)25]2–
Abstract
The cluster dianion [H2Ru10(CO)25]2–1 may be synthesised by redox condensation of the anion [HRu6(CO)18]–2 with [Ru3(CO)12]3 or by thermolysis of 3 in ethanol; it is the first high nuclearity ruthenium cluster not to contain an interstitial carbido-atom, and X-ray structure analysis shows that the cluster exhibits a unique metal core geometry which is clearly a fragment of the hexagonal close pack (hcp) system of metal atom packing.