January 10, 2025, 11:41:22 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Halogens Ortho Para Meta  (Read 1732 times)

0 Members and 1 Guest are viewing this topic.

Offline lrisNil

  • Regular Member
  • ***
  • Posts: 37
  • Mole Snacks: +0/-1
  • Gender: Female
  • Fan of Francis Crick
Halogens Ortho Para Meta
« on: March 16, 2015, 06:25:36 PM »
Are Halogens Ortho/Para or Meta directors?

So far I know they have lone pairs to push into the ring (activators for ortho / para)

But they also have an inductive effect (de-activators for meta)

So which is it?  :o

Thank you for reading this
Logged
Iris Lin

Offline Ben Bob2

  • Regular Member
  • ***
  • Posts: 83
  • Mole Snacks: +22/-0
  • Gender: Male
  • Undergraduate Chemist
    • Ben's Chemistry Page
Re: Halogens Ortho Para Meta
« Reply #1 on: March 16, 2015, 07:36:11 PM »
They are kind of an odd group as they are slight deactivators, but at the same time are ortho/para directors.
Logged
Change and decay in all around I see;
O Thou who changest not, abide with me

2014 Eisenhower Fellow
2015 GRO Fellow

Offline lrisNil

  • Regular Member
  • ***
  • Posts: 37
  • Mole Snacks: +0/-1
  • Gender: Female
  • Fan of Francis Crick
Re: Halogens Ortho Para Meta
« Reply #2 on: March 16, 2015, 08:02:22 PM »
I see.

So just because they deactivate doesn't make the meta directors ..

Thanks Ben
Logged
Iris Lin
Pages: [1]   Go Up
« previous next »
Sponsored Links