Synthesis and molecular structure of (n5-pentamethyl-cyclopentadienyl) (n5-cyclopentadienyl) hexacarbonyl molybdenum tungsten

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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Journal of Organometallic Chemistry, issue 690, pp. 674-677

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The metathesis reaction of Cp*(CO)3MoBr and NaW(CO)3Cp produced Cp*(CO)3Mo–W(CO)3Cp (1), featuring an unsupported Mo–W bond. Exposure of solutions of 1 to light leads to the quantitative formation of the corresponding homometallic dimers. In the solid state, the title complex exhibits an anti-arrangement of the g5-cyclopentadienyl and the g5-pentamethylcyclopentadienyl ligands and six terminal carbonyls. Comparison to corresponding complexes of molybdenum and tungsten reveals that the Mo–W distance is dictated by the presence of a Cp and a Cp* ligand. This is the first time that an unsupported Mo–W single bond distance is reported.

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Straub, T, Haukka, M, Brunner, M, Koskinen, A M P & Pakkanen, T A 2005, 'Synthesis and molecular structure of (n5-pentamethyl-cyclopentadienyl) (n5-cyclopentadienyl) hexacarbonyl molybdenum tungsten', Journal of Organometallic Chemistry, no. 690, pp. 674-677.