TY - JOUR
T1 - Joint X-ray and neutron diffraction refinement of the crystal and molecular structure of tri-μ-hydrido-μ-iodo-cyclo-tetrakis(tricarbonylosmium)(4 Os-Os)
AU - Johnson, Brian F.G.
AU - Lewis, Jack
AU - Raithby, Paul R.
AU - Wong, Kenneth
AU - Rouse, Keith D.
PY - 1980
Y1 - 1980
N2 - The title compound [Os4l(CO)12H3] crystallises in the monoclinic space group C2/c with a = 17.307(8), b = 8.040(3), c = 17.760(9) Å, β = 119.80(2)°, and Z = 4. Simultaneous refinement of a single parameter set to 1 925 X-ray [(sin θ)/λ > 0.45] and 607 neutron data has led to R 0.034 (X-ray) and 0.035 (neutron). The Os atoms adopt a 'butterfly' configuration, with the iodine sitting on the crystallographic two-fold axis and bridging the two 'wing-tip' metal atoms. One hydride also lies on the two-fold axis and bridges the Os-Os 'hinge' bond [Os-H 1.788 (4) Å]. The other two hydrides bridge the longer Os(hinge)-Os(wing-tip) bonds and lie closer to the 'wing-tip' metals [Os-H 1.754(4) (two) and 1.823(5) Å (two)]. Each Os atom is also bonded to three terminal carbonyl groups.
AB - The title compound [Os4l(CO)12H3] crystallises in the monoclinic space group C2/c with a = 17.307(8), b = 8.040(3), c = 17.760(9) Å, β = 119.80(2)°, and Z = 4. Simultaneous refinement of a single parameter set to 1 925 X-ray [(sin θ)/λ > 0.45] and 607 neutron data has led to R 0.034 (X-ray) and 0.035 (neutron). The Os atoms adopt a 'butterfly' configuration, with the iodine sitting on the crystallographic two-fold axis and bridging the two 'wing-tip' metal atoms. One hydride also lies on the two-fold axis and bridges the Os-Os 'hinge' bond [Os-H 1.788 (4) Å]. The other two hydrides bridge the longer Os(hinge)-Os(wing-tip) bonds and lie closer to the 'wing-tip' metals [Os-H 1.754(4) (two) and 1.823(5) Å (two)]. Each Os atom is also bonded to three terminal carbonyl groups.
UR - https://www.scopus.com/pages/publications/37049112713
U2 - 10.1039/DT9800001248
DO - 10.1039/DT9800001248
M3 - Article
AN - SCOPUS:37049112713
SN - 1472-7773
SP - 1248
EP - 1250
JO - Journal of the Chemical Society, Dalton Transactions
JF - Journal of the Chemical Society, Dalton Transactions
IS - 7
ER -