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How is the angle of BF3 120 degrees?

  1. Jul 11, 2018 #1
    Since it shows back bonding, shouldn't it be a little more than that?
     
  2. jcsd
  3. Jul 11, 2018 #2

    jim mcnamara

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    Staff: Mentor

  4. Jul 11, 2018 #3
    Thanks but I've already been there.
    My query was that BF3 already has trigonal planar structure by hybridization. And the predicted bond angle is 120 deg.
    But, we know that it shows BB too. So why doesn't it increases the bond angle?
     
  5. Jul 11, 2018 #4

    mjc123

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    Which bond angle? all three? Is that possible?
     
  6. Jul 11, 2018 #5

    TeethWhitener

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    What number would it increase to?

    Edit: ninja'd by mjc123
     
  7. Jul 11, 2018 #6
    Um. I don't know.
    Perhaps that answered my question. An increase in all three is just impossible. Perhaps I was only playing around with the idea of BB with just one F but it's with all three. Is that what you mean?
     
  8. Jul 11, 2018 #7

    TeethWhitener

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    Yes (I can't speak for mjc, but that's what I was thinking)
     
  9. Jul 11, 2018 #8
    Okay thanks for helping me!
     
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