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Preparation and Nuclear Magnetic Resonance Properties of Eleven-vertex closo-Type Osmaundecaboranes and the X-Ray Crystal Structure of the ortho-Cycloboronated Compound

DOI: 10.1039/DT9860002277

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2277 - 2282 (1986)

Update date:2022-08-03

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Authors:

Elrington, MargaretElrington, Margaret

Greenwood, Norman N.Greenwood, Norman N.

Kennedy, John D.Kennedy, John D.

Thornton-Pett, MarkThornton-Pett, Mark

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Article abstract of DOI:10.1039/DT9860002277

Reaction of the osmium(III) species with closo-(2-) in EtOH gives red-orange <(PMe2Ph)2OsB10H8(OEt)2>(42percent) identified by n.m.r. spectroscopy.By contrast, a similar procedure with the osmium(II) species gives the P-phenylene ortho-cycloboronated amber-brown compound (39percent), identified by single-crystal X-ray crystallography.Crystals are monoclinic, space group P21/n, with a = 1 123.7(1), b = 2 092.4(3), c = 1 750.9(2) pm, β = 92.54(1)deg, and Z = 4; the final R factor is 0.0283 for 4 623 observed reflections.These new eleven-vertex osmaboranes are air-stable as solids, and have closed eleven-vertex 1-metallaundecaborane geometries for which 'isocloso' electronic configurations have been proposed.

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Product name:[(P(CH3)2(C6H5))2RuB10H8(OCH2CH3)2]

Cas No:105428-90-8

105428-90-8

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