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Lookup NU author(s): Dr Ulrich Baisch
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The potassium salts of the new S2N-heteroscorpionate ligand hydrobis(methimazolyl)(3,5-dimethylpyrazolyl)borate [HB(mt)2(pz3,5-Me)]− and its known analogue hydrobis(methimazolyl)(pyrazolyl)borate [HB(mt)2(pz)]− (prepared from KTp′ or KTp and methimazole, Hmt), and the adduct KTp·Hmt have polymeric structures in the solid state (the first a ladder and the other two chains). The iridaboratranes [IrHLL′{B(mt)2X}] (X = pz3,5-Me or pz), prepared from the heteroscorpionate anion and [{Ir(cod)(μ-Cl)}2] (LL′ = cod), subsequent carbonylation [LL′ = (CO)2] and then reaction with phosphine [LL′ = (CO)(PR3), R = Ph or Cy], have a pendant pyrazolyl ring and a bicyclo-[3.3.0] cage formed by an S2-bound B(mt)2 fragment. The binuclear species [(cod)HIr{μ-B(mt)3}IrCl(cod)], the only isolated product of the reaction of KTm with [{Ir(cod)(μ-Cl)}2], also has an S2-bound iridaboratrane unit but with the third mt ring linked to square planar iridium(I).
Author(s): Lopez-Gomez MJ, Connelly NG, Haddow MF, Hamilton A, Lusi M, Baisch U, Orpen AG
Publication type: Article
Publication status: Published
Journal: Dalton Transactions
Year: 2011
Volume: 40
Issue: 17
Pages: 4647-4659
Print publication date: 21/03/2011
ISSN (print): 1477-9226
ISSN (electronic): 1477-9234
Publisher: Royal Society of Chemistry
URL: http://dx.doi.org/10.1039/C0DT01718C
DOI: 10.1039/C0DT01718C
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