induced dipoles

Moderators: Chem_Mod, Chem_Admin

dtolentino1E
Posts: 101
Joined: Thu Jul 11, 2019 12:17 am

induced dipoles

Postby dtolentino1E » Fri Nov 15, 2019 11:01 am

how do induced dipoles happen? and what are some examples of a dipole-induced dipole molecules?

Ashley Kim 3F
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: induced dipoles

Postby Ashley Kim 3F » Fri Nov 15, 2019 11:24 am

Induced dipoles occur when temporary and fluctuating electron densities create a net favorable attractive force. Dipole-induced dipoles usually occur between a polar and nonpolar molecule.

Gwen Casillan 3E
Posts: 46
Joined: Sat Sep 07, 2019 12:17 am

Re: induced dipoles

Postby Gwen Casillan 3E » Fri Nov 15, 2019 11:41 am

Some examples of dipole-induced dipoles are HCl and N2, H2O and O2, and H2O and Br2

Justin Quan 4I
Posts: 104
Joined: Sat Sep 14, 2019 12:17 am

Re: induced dipoles

Postby Justin Quan 4I » Fri Nov 15, 2019 12:46 pm

To add on, induced dipoles forms when a polar molecule induces a dipole movement in another atom or a non-polar molecule by disrupting the electron arrangement in that non-polar molecule. This is why it's call induced dipole.

805394719
Posts: 104
Joined: Wed Sep 11, 2019 12:16 am

Re: induced dipoles

Postby 805394719 » Fri Nov 15, 2019 1:01 pm

Induced dipole-induced dipole interactions are a result of fluctuating electron densities. For example, if you put two nonpolar molecules together that do not contain any dipoles in their bonds, there would be no interaction between the molecules that was due to a difference in charges such as partial charges as in the case of dipoles. However, since electrons are not static and move around in their orbitals, the fluctuating positions of electrons will cause momentarily or temporarily positively or negatively charged regions. Imagine if you had a hydrogen atom with one electron. Because that electron is moving around, the region with the electron at the moment will become slightly negatively charged whereas the region that is free of electrons will be slightly positively charged. Induced dipole-induced dipole interactions are a result of the exact same thing. When two molecules come together, their atoms will have electrons that are fluctuating that will cause one region to be positive and one to be negative which will then be attracted to each other. Because the electrons will repel each other, the electrons of individual atoms will be positioned again according to the electrons in the other individual atom of another molecule. So there will be two poles known as a dipole within the same molecule which will cause the two molecules to be attracted to each other.

Shivam Rana 1D
Posts: 106
Joined: Fri Aug 09, 2019 12:16 am

Re: induced dipoles

Postby Shivam Rana 1D » Fri Nov 15, 2019 1:15 pm

Induced dipoles occur when polar molecules cause shifts in the electron density of non-polar molecules.


Return to “Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)”

Who is online

Users browsing this forum: No registered users and 1 guest