Why does phosphodiester bond have diester as part of it's name?

  1. Sep 15, 2013 #1
    Why does "phosphodiester bond" have "diester" as part of it's name?

    Why does "phosphodiester bond" have "diester" as part of it's name?

    I don't see two esters. I must be overlooking something. Maybe it's because the two riboses can dissociate into ester form? Thanks.
     
  2. jcsd
  3. Sep 15, 2013 #2

    jedishrfu

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    http://en.wikipedia.org/wiki/Phosphodiester_bond

    A phosphodiester bond is a group of strong covalent bonds between a phosphate group and two 5-carbon ring carbohydrates (pentoses) over two ester bonds.
     
  4. Sep 16, 2013 #3

    Ygggdrasil

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    Probably because it contains two C-O-P bonds (a normal ester is a C-O-C bond [where one of the carbons is a carbonyl], so a singel phosphoester would be a C-O-P bond [in which the phosphorus atom is a phosphate]).
     
  5. Sep 18, 2013 #4
    I thought that was an ether.
     
  6. Sep 18, 2013 #5
    I'm still not seeing it. I see riboses and phosphate groups.
     
  7. Sep 18, 2013 #6

    Borek

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    To quopte wikipedia:

    (bolding mine)
     
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