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Naming a coordination compound

  1. Jun 28, 2009 #1
    1. The problem statement, all variables and given/known data

    Name the complex CrCl2(en)2. The oxidation number of chromium is +2

    2. Relevant equations

    when there are two (en)s, you use bis instead of di because it is bidentate

    3. The attempt at a solution

    bis-ethylenediaminedichlorocromide(II)
    bisethylenediaminedichlorocromide(II)

    I've checked the spelling, etc., a couple of times and I'm not sure what is wrong with it...
     
  2. jcsd
  3. Jun 29, 2009 #2

    chemisttree

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    bis(something) not bis-something.

    Cr is not cromide. Remember that the -ide suffix is used to denote an anion, not a cation. In this example, chromium is in the +2 oxidation state, a cation.
     
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