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complex Isomers help please!!! help!!!! help!!!!! help!! panicking!!!! Watch

    • Thread Starter

    Hi, i'm really need help, what is the answer to this question:

    1.) Describe how octrahedral complexes can display cis-trans isomerism?

    2.) When do octrahedral complexes display optical isomerism?
    •  Official Rep

     Official Rep
    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.

    You can also find the Exam Thread list for A-levels here and GCSE here. :dumbells:

    Just quoting in Puddles the Monkey so she can move the thread if needed
    (Original post by Puddles the Monkey)

    1. Octahedrals are shapes with eight planes
    2. Octahedrals have 6 adjacent atoms bonded to the central atom
    3. Octahedral complexes have 6 adjacent ligands with dative covalent bonds attached to the central atom
    4. In traditional cis-trans, you are concerned with the arrangements in a square
    5. If you drew out an octahedral arrangement correctly, you should notice that connecting four of the atoms in a plane forms a square
    6. Then you should be able to apply AS knowledge on cis-trans isomers of say, alkenes to this scenario.

    It looks like this

    I'm less sure on the optical activity question, have a quick read yourself - http://chemwiki.ucdavis.edu/Core/Ino...anic_Complexes
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