Why fluctuations?  [ENDORSED]

Moderators: Chem_Mod, Chem_Admin

Mei Blundell_1J
Posts: 32
Joined: Fri Apr 06, 2018 11:01 am
Been upvoted: 1 time

Why fluctuations?

Postby Mei Blundell_1J » Sun May 20, 2018 11:32 am

In induced dipole-induced dipole interactions, fluctuations in electron probability cloud density in one molecule causes complementary fluctuations in a nearby molecule. Why are there fluctuations in the electron cloud to begin with, and why doesn't the system equilibrate until both molecules are stable with each other and there are no fluctuations?

Thanks

Chem_Mod
Posts: 18646
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 602 times

Re: Why fluctuations?  [ENDORSED]

Postby Chem_Mod » Sun May 20, 2018 11:44 am

Because atoms and molecules are free to move around, resulting in electron density fluctuations.

Mei Blundell_1J
Posts: 32
Joined: Fri Apr 06, 2018 11:01 am
Been upvoted: 1 time

Re: Why fluctuations?

Postby Mei Blundell_1J » Sun May 20, 2018 11:49 am

Oh that makes sense. When molecules move around they change where attractions and repulsions are located. This changes the orientation of dipoles and causes constant fluctuation. I think I get it, thanks!


Return to “Dipole Moments”

Who is online

Users browsing this forum: No registered users and 0 guests