119503-15-0Relevant articles and documents
Heterometallic clusters of ruthenium and the group 11 elements (Cu, Ag, and Au) containing a COMe ligand. X-ray structure of H2Ru3(CO)8PPh3(μ 3-COMe)(CuPPh3)
Evans, John,Stroud, Philip M.,Webster, Michael
, p. 1270 - 1275 (2008/10/08)
Deprotonation of H3Ru3(CO)9(μ3-COMe) (1) with K-Selectride leads to formation of the cluster anion [H2Ru3(CO)9(μ3-COMe)]- which was isolated as the PPN salt 2. This anion reacts with MPPh3Cl (M = Cu, Ag, Au) to form the heterometallic clusters H2Ru3(CO)9(μ3-COMe)(MPPh 3) [M = Cu (3), Ag (4), Au (5)]. Reaction of these clusters with PPh3 results in rapid formation of the PPh3-substituted derivatives H2Ru3(CO)8PPh3(μ 3-COMe)(MPPh3) [M = Cu (6), Ag (7), Au (8)]. The X-ray structure of 6 is reported: the compound forms orange monoclinic crystals, space group P21/a (No. 14), with lattice dimensions a = 45.824 (6) A?, b = 11.157 (5) A?, c = 9.026 (2) A?, β= 95.31 (1)°, V = 4594.8 A?3, and Z = 4. The four metal atoms adopt a "butterfly" configuration with the Cu atom occupying a "wing tip" site and the three Ru atoms capped by the COMe ligand. Two of the CO ligands exhibit a semibridging relationship with the Cu atom. 3 and 4 are unstable in CH2Cl2 solution eventually giving the homometallic clusters H3Ru3-(CO)8PPh3(μ 3-COMe) (9) and H3Ru3(CO)7(PPh3) 2(μ3-COMe) (10).
