87176-24-7Relevant academic research and scientific papers
PENTAMETHYLCYCLOPENTADIENYLCOPPER: A METAL LIGAND FRAGMENT ISOLOBAL WITH METHYLENE
Carriedo, Gabino A.,Howard, Judith A. K.,Stone, F. Gordon A.
, p. C28 - C32 (1983)
Treatment of copper(I) chloride with LiC5Me5 in tetrahydrofuran affords a reagent which is a useful source of the Cu(η-C5Me5) fragment in synthesis.
Chemistry of Di- and Tri-metal Complexes with Bridging Carbene or Carbyne Ligands. Part 24. Complexes of the Pentamethylcyclopentadienylcopper Group and the Crystal Structures of the Compounds and
Carriedo, Gabino A.,Howard, Judith A. K.,Stone, F. Gordon A.
, p. 1555 - 1562 (2007/10/02)
Treatment of copper(I) chloride with Li(C5Me5) in tetrahydrofuran at low temperatures affords a reagent which is a useful source of the Cu(η-C5Me5) fragment in syntheses.The preparation of the compounds (CO)5(η-C5Me5)>, , , (R=C6H4Me-4), and is described, and spectroscopic data (i.r. and n.m.r.) for the new species are reported and discussed.Single-crystal X-ray diffraction studies have been carried out on the compounds and .In the former compound, the μ-CCuPtW core atoms adopt a butterfly configuration with an angle of fold of 90.6 degree between the C,W,Pt and C,W,Cu planes.The Cu...Pt separation implies little or no metal-metal bonding between these centres.The tungsten atom carries an η-C5H5 group and two CO ligands, one of which semi-bridges the Pt-W bond .The C5Me5 ligand on copper is η5-bonded to the metal, and the Cu-W distance is 2.648(3) Angstroem.The structure of is based on a triangle of metal atoms which, however, proved to be positionally disordered.The data obtained are limited, but the mean metal-metal separation is 2.56(1) Angstroem and the two CO groups are tilted in a way which implies semi-triply bridging behaviour.The important feature that the C5Me5 ligand on copper is η5-co-ordinated is confirmed.
