Octahedral carbyneosmium(II) complexes |
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Authors: | GR Clark NR Edmonds RA Pauptit WR Roper JM Waters AH Wright |
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Institution: | Department of Chemistry, University of Auckland, Auckland New Zealand |
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Abstract: | The zerovalent carbyneosmium complex, OsCl(CC6H4NMe2)(CO)(PPh3)2, reacts with molecular oxygen giving a 1/1 adduct which is formulated as a divalent, octahedral complex retaining the unchanged carbyne ligand, and with a dihapto-peroxycarbonyl ligand, OO)Cl(CC6H4NMe2)(PPh3(2. Reaction with HCl liberates CO2 and forms OsCl2(CC6H4NMe2)(H2O)(PPh3)2]+ from which have been derived, and structurally characterised by X-ray crystallography, the two octahedral complexes, OsCl2(NCS)(CC6H4NMe2)(PPh3)2 and OsCl2(CC6H4NMe2)(CNR)(PPh3)2]+. The Os—carbyne distances in these two species are, respectively, 1.75(1) and 1.78(1) Å. |
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