Abstract
The OsII atom in the title compound, [OsCl2(C8H12)(C18H15P)2], is located on a crystallographic twofold axis and adopts a distorted octahedral coordination geometry. The two triphenylphosphine ligands are trans to each other, while the two chlorine ligands are cis-disposed. The coordination is completed by the cyclooctadiene (COD) ligand with bonding to the two olefin double bonds. The C=C bond has a length of 1.403 (6) Å, which is significntly longer than a free olefinic double bond (≃1.34 Å).
Highlights
Z=8 Mo K radiation = 3.76 mmÀ1 T = 173 K 0.15 Â 0.15 Â 0.12 mm 6965 measured reflections 2778 independent reflections 2546 reflections with I > 2(I) Rint = 0.033
The coordination is completed by the cyclooctadiene (COD) ligand with bonding to the two olefin double bonds
The C C bond has a length of 1.403 (6) A, which is significntly longer than a free olefinic double bond (’1.34 A )
Summary
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2008) Tmin = 0.860, Tmax = 1.000. R[F 2 > 2(F 2)] = 0.022 wR(F 2) = 0.044 S = 1.00 2778 reflections 222 parameters 1 restraint. H-atom parameters constrained Ámax = 1.39 e A À3 Ámin = À0.74 e A À3 Absolute structure: Flack (1983), 937 Friedel pairs Flack parameter: 0.009 (6). The OsII atom in the title compound, [OsCl2(C8H12)(C18H15P)2], is located on a crystallographic twofold axis and adopts a distorted octahedral coordination geometry. The coordination is completed by the cyclooctadiene (COD) ligand with bonding to the two olefin double bonds. The C C bond has a length of 1.403 (6) A , which is significntly longer than a free olefinic double bond (’1.34 A )
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