problems4 - 423\/523 Organometallic Chemistry Problem set 4 1 Strained alkenes such as cyclopropene or norbornene bind unusually strongly to metals

problems4 - 423/523 Organometallic Chemistry Problem set 4...

This preview shows page 1 out of 1 page.

423/523 Organometallic Chemistry Problem set 4 1. Strained alkenes such as cyclopropene or norbornene bind unusually strongly to metals. Suggest a reason why. 2. Alkynes readily bridge M-M bonds, in which case they act as 2e donors to each metal. Sketch the product of the reaction below, indicating the hybridization of the C atoms. 2CO 3. Draw as many bonding modes for cyclooctatetraene as you can think of. 4. Sketch the three π-MOs of the allyl anion, [C3H5]. Draw metal d-orbitals that can interact with these MOs, and name the type of bonding (e.g. ML π-acceptor). 5. The M-P distance in (η5-C5H5)Co(PEt3)2is 221.8 pm and the P-C distance is 184.6 pm. The corresponding distances in [(η5-C5H5)Co(PEt3)2]+are 223 pm and 182.9 pm. Account for the changes

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture