Welcome to LookChem.com Sign In|Join Free

Article Doi

The Synthesis of by the Carbonylation of and the Reactions of the Pentanuclear Cluster with a Variety of Small Molecules: the X-Ray Structure Analyses of , , , , and <Ru5(μ-H)2C(CO)12<Ph2P(CH...

DOI: 10.1039/DT9830000277

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 277 - 290 (1983)

Update date:2022-08-11

Topics:

Authors:

Johnson, Brian F. G.Johnson, Brian F. G.

Lewis, JackLewis, Jack

Nicholls, J. NicolaNicholls, J. Nicola

Puga, JosePuga, Jose

Raithby, Paul R.Raithby, Paul R.

Rosales, Maria J.Rosales, Maria J.

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1039/DT9830000277

The hexaruthenium cluster reacts with CO at 70 deg C and 80 atm to produce (1) and .Complex (1) crystallises in space group P21/c with a = 16.448(3), b = 14.274(2), c = 20.834(4) Angstroem, β = 91.36(2) deg, and Z = 8.The structure was found to be isomorphous with the analogue , and was refined to R = 0.051 for 3 256 diffractometer data.The five Ru atoms adopt a square-pyramidal geometry with an exposed carbido-atom lying 0.11(2) Angstroem beneath the basal plane.Reaction of complex (1) with the nitrogen-donor ligand MeCN yields the adduct (2) which exhibits a bridged butterfly arrangement of metal atoms with a central carbido-atom.The complex crystallises in space group P21/n with a = 14.116(6), b = 18.167(7), c = 10.276(4) Angstroem, β = 95.14(3) deg, and Z = 4; the structure was solved by direct methods and difference techniques and refined to R = 0.047 for 1 604 diffractometer data.Reactions of complex (1) with tertiary phosphine ligands PR3 or Ph2P(CH2)nPPh2 produce the substituted complexes 15-m(PR3)m> or nPPh2>> .The structures of these complexes are closely related to that of (1).Complex (3a) crystallises in space group Pn with a = 9.953(2), b = 12.247(2), c = 14.703(3) Angstroem, β = 91.23(2) deg, and Z = 2, (3b) in space group P21/c with a = 15.923(4), b = 12.494(3), c = 25.210(7) Angstroem, β = 93.28(2) deg, and Z = 4.Both structures were solved by a combination of direct methods and Fourier techniques and were refined to R = 0.021 for 3 305 reflections (3a) and R = 0.039 for 4 127 reflections (3b), respectively.Hydrogenation of (6) gives the dihydro-complex > which crystallises in space group P21 with a = 12.210(4), b = 18.602(6), c = 18.409(6) Angstroem, β = 97.63(2) deg, and Z = 4.The structure was solved using the same techniques as the other complexes and refined to R = 0.064 for 3 510 diffractometer data.Treatment of complex (1) with halide ions gives the anionic clusters (1-) (X = F, Cl, Br, or I) whose structures are similar to that of (2).Protonation of these anions gives the monohydrido-clusters .With Cl2 and Br2 complex (1) undergoes fragmentation to give dimers (X = Cl or Br); in contrast, reaction with I2 gives .

View More

Products guided by the article

Product name:Ruthenium

Cas No:7440-18-8

7440-18-8

R&D Labs maybe for 7440-18-8

Relevant to this article

Hot Product