81218-61-3Relevant academic research and scientific papers
Mixed-metal Carbido Carbonyl Clusters. Part 3. Synthesis and Structural Characterization of *0.5MeOH, (M=Cu, Ag, or Au), and of the Anion (1-) as its PPh4(1+) Salt
Fumagalli, Alessandro,Martinengo, Secondo,Albano, Vincenzo G.,Braga, Dario
, p. 1237 - 1248 (2007/10/02)
The new mixed-metal carbido carbonyl clusters (1), , and (1-) (4) have been obtained by reaction in MeOH solution of (2-) with AgBF4 (in the presence of MeCN), (M=Cu or Ag), or .Their molecular structures have been determined by single-crystal X-ray diffractometry: (1), monoclinic, space group C2/c, a=18.110(3), b=10.455(3), c=20.553(4) Angstroem, β=125.99(1) deg, and Z=4; (2), triclinic, space group P1, a=11.397(3), b=16.519(2), c=16.879(3) Angstroem, α=116.07(1), β=98.86(2), γ=87.77(2) deg, and Z=2; (3), triclinic, space group P1, a=11.474(3), b=16.012(9), c=16.688(4) Angstroem, α=114.25(3), β=97.82(2), γ=89.59(4) deg, and Z=2; (4), monoclinic, space group P21/c, a=23.009(3), b=14.583(2), c=36.726(4) Angstroem, β=97.54(1) deg, Z=8; (5), triclinic, space group P1, a=11.438(1), b=16.330(7), c=16.813(2) Angstroem, α=115.58(2), β=98.68(1), γ=88.37(2) deg, and Z=2.The structural analysis shows that the heterometallic ligands selectively cap one or both triangular faces of the Rh6 prismatic framework leaving the CO-ligand stereogeometry almost unaltered.Differences in the heterometallic interactions established by the various metal fragments are discussed.
