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dc.contributor.authorDuffy, D. Neil
dc.contributor.authorMackay, Kenneth M.
dc.contributor.authorNicholson, Brian K.
dc.contributor.authorThomson, Ralph A.
dc.date.accessioned2010-11-01T23:06:05Z
dc.date.available2010-11-01T23:06:05Z
dc.date.issued1982
dc.identifier.citationDuffy, D.N., Mackay, K.M., Nicholson, B.K. & Thomson, R.A. (1982). Anionic germanium polycobalt carbonyl clusters. Part 3. Preparation and structures of [Net₄][Ge₂Co₇(CO)₂₁] and [Net₄][Ge{Co₇(CO)₂₀}]; two large clusters incorporating tetrahedral GeCo₃ units. Journal of the Chemical Society, Dalton Transactions, 6, 1029-1034.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/4734
dc.description.abstractReactions of the [Ge{Co₅(CO)₁₆}]⁻ cluster have given rise to two new germanium–polycobalt cluster anions, characterised as their Net₄⁺ salts by X-ray crystallography. The complex [NEt₄][Ge₂Co₇(CO)₂₁](1a) forms triclinic crystals, space group P , with a= 13.085(2), b= 19.712(7). c= 12.220(8)Å, α= 109.10(3), β= 92.60(2), γ= 129.32(3)°, and Z= 2. The structure was solved by direct methods and refined to R=R′= 0.046 for 2 076 reflections with l > 3σ(l). The anion (1) consists of two –GeCo₃(CO)₉ units bonded mutually trans about a trigonal planar Co(CO)₃ group, giving idealised C3v, symmetry. For [Net₄][Ge{Co₇(CO)₂₀}](2a). crystals are monoclinic, space group P21/c, with a= l2.761(7), b= 18.415(3), c= 17.675(4)Å, β= 102.91(3)°, and Z= 4. The structure was refined to R= 0.077, R′= 0.074, for 1 123 reflections with I > 2σ(I). The anion (2) is a derivative of the C3v structure of [Co₄(CO)₁₂] with the axial carbonyl ligand of one basal cobalt replaced by a –GeCo₃-(CO)₉⁻ fragment. The Co4 tetrahedron is disordered.en_NZ
dc.language.isoen
dc.relation.urihttp://pubs.rsc.org/en/Content/ArticleLanding/1982/DT/dt9820001029en_NZ
dc.subjectchemistryen_NZ
dc.titleAnionic germanium polycobalt carbonyl clusters. Part 3. Preparation and structures of [Net₄][Ge₂Co₇(CO)₂₁] and [Net₄][Ge{Co₇(CO)₂₀}]; two large clusters incorporating tetrahedral GeCo₃ unitsen_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.1039/DT9820001029en_NZ


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