December 22, 2024, 08:32:16 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: phosphrous mixhalides stability  (Read 3968 times)

0 Members and 1 Guest are viewing this topic.

Offline shivam

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
phosphrous mixhalides stability
« on: May 30, 2011, 08:16:00 AM »
which one is more stable PCl3F2 or PCl2F3 ?
Logged

Offline cheese (MSW)

  • Not a
  • Full Member
  • ****
  • Posts: 144
  • Mole Snacks: +15/-23
  • Gender: Male
Re: phosphrous mixhalides stability
« Reply #1 on: August 23, 2011, 12:08:21 PM »
Element-halogen (E-X) bond strengths decrease in the order E-F > E-Cl > E-Br > E-I (cf. E = C).
This is rationalized by MO overlap arguments:  there is more effective overlap with the F 2p AO thus concentrating e⁻ density between the two +ve centers.  With this idea in mind you should be able to predict which of PCl3F2 or PCl2F3 is  thermodynamically the more stable.
This site may also help:
http://www.wiredchemist.com/chemistry/data/bond_energies_lengths.html
Logged

BryanSanctuary

  • Guest
Re: phosphrous mixhalides stability
« Reply #2 on: December 12, 2013, 02:16:06 AM »
PCl3F2 is more suitable rather then PCl2F3.
Need some help you can read it from our ebooks at http://www.mchmultimedia.com
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links