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  • 1990-1994  (3)
  • Mixed metal  (2)
  • dianionic cluster  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Cluster synthesis. 42. The synthesis and crystal and molecular structures of the sulfur-bridged platinum-ruthenium carbonyl cluster compounds PtRu3(CO)9 L(PPh3)(μ3-S)2 (L=CO, PPh3) and PtRu4(CO)12(PPh3)(μ4-S)2 (1993)
    Springer
    Journal of cluster science 4 (1993), S. 423-437 
    Details
    ISSN: 1572-8862
    Keywords: Mixed metal ; platinum ; ruthenium ; sulfur ; X-ray structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Two new mixed metal cluster complexes PtRu3(CO)10(PPh3)(μ3-S)2,3 14% yield and PtRu3(CO)9(PPh3)2(μ3-S)2,4 23% yield were obtained from the reaction of Ru3(CO)9(μ3-S)2,1 with Pt(PPh3)2(C2H4) at 0°C. The cluster of4 consists of a spiked triangle of four metal atoms with two triply bridging sulfido ligands. The reaction of Ru4(CO)11(μ4-S)2,2 with Pt(PPh3)2(C2H4) yielded the expanded mixed-metal cluster complex PtRu4(CO)12(PPh3)(μ4-S)2,5 in 12% yield. The structure of the cluster5 can be described as a pentagonal bipyramid of five metal atoms and two sulfido ligands with one metal-metal bond missing. Compounds4 and5 were characterized by a single-crystal X-ray diffraction analyses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00703735
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  • 2
    Electronic Resource
    Electronic Resource
    Cluster synthesis 37—Platinum-ruthenium carbido-cluster complexes: The syntheses and structural characterizations of PtRu5(C)(CO)16, Pt2Ru5(C)(CO)13(COD)2, and Pt3Ru5(C)(CO)14(COD)2 (1991)
    Springer
    Journal of cluster science 2 (1991), S. 271-290 
    Details
    ISSN: 1572-8862
    Keywords: Interstitial carbido ligands ; mixed metal clusters ; dianionic cluster ; crystallographic structure ; platinum ; ruthenium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract From the reaction of [Ru5(C)(CO)14]2− with Pt(COD)Cl2, COD=1, 5 cyclooctadiene, the new platinum-ruthenium carbido cluster complex PtRu5 (C)(CO)14(COD),1, was obtained in 41% yield. When1 was allowed to react with carbon monoxide (25°C/1 atm), the new complex PtRu5(C)(CO)16,2, was obtained almost quantitatively (97% yield). Compound2 was characterized by IR and single-crystal X-ray diffraction analysis. The six metal atoms are arranged in the form of an octahedron with the carbide ligand located in the center. Compound1 is believed to have a similar structure to2 except for a COD ligand coordinated to the platinum atom. When activated by treatment with Me3NO, compound2 reacts with Pt(COD)2 at 25°C to yield two higher nuclearity cluster complexes, Pt2Ru5C(CO)13(COD)2.3, and Pt3Ru5C(CO)14(COD)2,4. The structure of3 is similar to that of1, but contains a Pt(COD) grouping capping one Ru3 triangle of the PtRu5 octahedron. The structure of4 consists of a PtRu5 octahedron with two Pt(COD) capping groups, one on an Ru3 triangle and the other on a PtRu2 triangle of the octahedron. Crystal data: for2, space group=P21/n,a=9.341 (2) Å,b=14.957 (3) Å,c=36.80 (1) Å, β=90.38 (2) °,Z=8, 4034 reflections,R=0.030, for3, space group=P21/c,a=14.998 (3) Å,b=10.288 (3) Å,c=26.581 (7) Å, β=102.75 (2) °,Z=4, 2917 reflections,R=0.028. for4, space group=P21/n,a=13.412 (4) Å,b=16.252 (4) Å,c=20.107 (4) Å, β=106.13 (2) °,Z=4, 2745 reflections,R=0.032.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00702957
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  • 3
    Electronic Resource
    Electronic Resource
    The synthesis and structural analysis of the new high nuclearity platinum-ruthenium cluster complex Pt2Ru8(CO)18(μ3−EtC2Et)2(μ4−EtC2Et) containing three alkyne ligands (1994)
    Springer
    Journal of cluster science 5 (1994), S. 551-564 
    Details
    ISSN: 1572-8862
    Keywords: Mixed metal ; platinum ; ruthenium ; alkyne ; crystal structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstarct The ten metal cluster complex Pt2Ru8(CO)23(µ3−H)2, 1 was found to react with EtC2Et to form a new ten metal tris-alkyne complex Pt2Ru8(CO)18(µ3−EtC2Et)2 (µ4−EtC2Et),2 in 35% yield. Complex 2 was characterized by IR,1H NMR , and single crystalx-ray diffraction analyses. The cluster can be viewed as a dodecahedron of eight metal atoms capped with two ruthenium carbonyl groups, two triply bridging EtC2Et ligands and one quadruply bridging EtC2Et ligand. Application of the standard electron counting procedures indicate that this is an unusual complex in which the 18 electron rule applies and the polyhedral skeletal electron pair theory does not. Crystal Data for 2 2.0.5 CH2CI2: space group = P21,a = 12.759(2) A,b=18.438(2)Å,c = 20.197(3) Å,β = 91.59(1)°, Z. = 4, 6394 reflections,R = 0.037.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01171385
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    Paper (German National Licenses)
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