167865-36-3Relevant academic research and scientific papers
Synthesis of heterobimetallaboranes and related species from [(PPh3)2(CO)OsB5H9]: Pileo-[(PPh3)2(CO)OsB5H5IrH(PPh 3)(CO)], closo-[(PPh3)2(CO)(μ-H)OsB4H 5{η5-(C5Me5)M}] (M = Rh, Ir), ...
Bould, Jonathan,Pasieka, Michael,Braddock-Wilking, Janet,Rath, Nigam P.,Barton, Lawrence,Gloeckner, Charles
, p. 5138 - 5149 (2008/10/09)
Full title: Synthesis of heterobimetallaboranes and related species from [(PPh3)2(CO)OsB5H9]: Pileo-[(PPh3)2(CO)OsB5H5IrH(PPh 3)(CO)], closo-[(PPh3)2(CO)(μ-H)OsB4H 5{η5-(C5Me5)M}] (M = Rh, Ir), nido-[(PPh3)2(CO)Os(μ-H){η5-(C 5Me5)Ir}B3H6], and nido-[(PPh3)2(CO)OsB4H7(n-C 4H9)]. A number of new heterobimetallaborane clusters have been synthesized from the addition of metal halide complexes to nido-[(PPh3)2(CO)OsB5H8][Li]. The compounds have been characterized fully by NMR, IR, mass spectroscopy, and single-crystal X-ray diffraction techniques as pileo-[1,1,1-H(PPh3)(CO)-2,2,2-(PPh3) 2(CO)-1,2-IrOsB5H5] (1), closo-[1-(C5Me5)-2,2,2,-(CO)(PPh3) 2-1,2-(μH)-1,2-IrOsB4H5] (2a), and nido-[2-(η5 C5Me5)-3,3,3-(CO)(PPh3) 2-2,3-(μH)-2,3-IrOsB3H6] (3). A rhodium analogue of 2a was also prepared and characterized by NMR spectroscopy as closo-[1-(C5Me5)-2,2,2,-(CO)(PPh3) 2-1,2-(μH)-1,2-RhOsB4H6] (2b). The complexes all contain seven cluster skeletal electron pairs within 7, 6, and 5 cluster vertices, thus attaining an interesting pileo-closo-nido sequence of structures. The alkyl substituted nido-osmapentaborane cluster nido-[2,2,2-(PPh3)2(CO)-2-OsB4H 7(C4H9)] (6), identified by NMR, IR, and mass spectroscopy, is also described.
nido-B3H7>, closo-B4H6> and pileo-B5H5>: a Unique Homologous Series of Iridaosmaborane Cluster Types
Bould, Jonathan,Rath, Nigam P.,Barton, Lawrence
, p. 1285 - 1286 (2007/10/02)
The synthesis and characterization of nido-B3H7>, closo-B4H6> and pileo-B5H5>, a unique series of iridaosmaborane clusters containing three, four and five boron atoms, respectively, are reported.
