Why is 1-fluoroethanol more acidic than ethanol?

  • Thread starter Thread starter bomba923
  • Start date Start date
  • Tags Tags
    Acid
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
2 replies · 5K views
bomba923
Messages
759
Reaction score
0
Is 1-fluoroethanol significantly more acidic than regular ethanol?

(Not just "slightly" more acidic)

What about 1-chloroethanol? Is it significantly more acidic than regular ethanol?

(see the attached image for structures of these molecules)
 

Attachments

  • acidq.GIF
    acidq.GIF
    1.2 KB · Views: 803
Chemistry news on Phys.org
1-chloroethanol isn't stable. It will decompose into acetaldehyde and HCl. You might be able to produce fleeting amounts of it in the gas phase, but it probably wouldn't stick around long enough to measure the pKa.

For what it's worth, 2-flouroethanol is only moderately more acidic than ethanol (pKas of 14.42 and 15.18, respectively).