Synthesis and structural characterisation of the heteronuclear raft complex [Os3(CO)11Hg]3

Abstract

The heteronuclear clusters [M3(C0)11Hg]3 (M = Ru, 0 s ) have been prepared by the reaction of [M3H(CO)11]-with Hgl and Hg" salts; [ O S ~( C O ) ~, H ~] ~ has been characterised by an X-ray analysis and shown to contain a raft-like OsgHg3 metal framework.

The synthesis and X-ray structure analysis of the dianion [Ru18(C)2(CO)42Hg3]2–, the first octadecaruthenium cluster

“…RU-Ru: (1)-(2) 2.840(9), (1)-(3) 2.854(8), (1)-(4) 2.832(6), (1)-(5) 2.840(6), (1)-(7) 2.754(6), (1)-(9) 2.741(6), (2)-(3) 3.002(5), (2)-(5) 2.831(7), (2)-(6) 3.010(5), (2)-(9) 2.803(8), (3)-(4) 2.866(7), (3)-(…”

Mercury–osmium carbonyl clusters resulting from facile Hg–C bond cleavage: reactions of [Os3H2(CO)10] with [Hg(CCPh)2] and [RHgCCHgR](R = Ph, Me or Et)

“…We can presume that, in general, the shorter the Hg Hg distances the smaller are the Hg-M-Hg angles and hence the larger the interactions between the two Hg subunits. The geometry around Hg (1) [or Hg(l*)] is trigonal, involving three osmium atoms: Os(l), Os(2) and Os (3). The maximum deviation of 0.004 8, from their least-squares plane indicates that Os(l), Hg(l), Os (2) This may suggest some electron excess on the two atoms Os(3) and Os(4).…”

“…Atomic coordinates and related bond parameters are in Tables 7 and 8, respectively. As in clusters 1 and 2, the metal core comprises a butterfly framework with the Os(2)-Os(3) edge and Os (1) and Hg(1) forming the hinge and the wingtips of the butterfly, respectively. The dihedral angle of the butterfly is 122.46" which is almost identical to that in cluster 1 (121.07").…”

Cluster Complexes with Bonds Between Transition Elements and Zinc, Cadmium, and Mercury

“…49 The higher-nuclearity carbide-supported osmium-mercury clusters and their fascinating redox properties and photochemistry have already been discussed in Section 6.3. This chemistry starts with the osmium analogue of the decaruthenium carbido dianion discussed in Section 6.11.5 [Os 10 C(CO) 24 Although no solidstate structures for these derivatives have been reported so far, the u-HgBr moieties are assumed to bridge one or three edges of the basal Os 3 triangle o f this tetrahedral cluster.…”