Dipole Dipole Interactions

[Cecilia Cisneros 1F]

Would a bond between C-Cl be enough to experience dipole-dipole interactions? How do we determine whether there is a dipole moment present if we are just given the molecular formula and the molecule does not include N,O,F (the most electronegative atoms on the PT).

[Ashlen Bullock 1H]

I think C-Cl would experience dipole-dipole interactions. I believe that dipole-dipole interactions occur when there is a difference between electronegativities in a molecule. However, they do not occur in nonpolar molecules. At least that is the way I think of it.

[Cecilia Cisneros 1F]

I think C-Cl would experience dipole-dipole interactions. I believe that dipole-dipole interactions occur when there is a difference between electronegativities in a molecule. However, they do not occur in nonpolar molecules. At least that is the way I think of it.

Yeah that's what I'm thinking too, so would you say nonpolar only occurs between diatomic molecules (Br2, H2, F2) or with small electroneg. diff (C-H)? Or do you think we would be provided an electronegativity chart to determine this?

[Jade_Tai_2L]

I thought of the nonpolar molecules as the ones consisting of non-metal atoms (which therefore, yes, Br2, H2, F2 would be nonpolar). I never really thought about the small electronegativity differences and if that factored in as well. Hopefully someone answers this :')

[Marisa Gaitan 2D]

I think C-Cl would experience dipole-dipole interactions. I believe that dipole-dipole interactions occur when there is a difference between electronegativities in a molecule. However, they do not occur in nonpolar molecules. At least that is the way I think of it.

Yeah that's what I'm thinking too, so would you say nonpolar only occurs between diatomic molecules (Br2, H2, F2) or with small electroneg. diff (C-H)? Or do you think we would be provided an electronegativity chart to determine this?

If all dipole moments in a molecule can cancel and it is symmetric, then it will also be considered nonpolar. For example, CCl₄ is nonpolar because its dipoles all cancel. I found some really good youtube videos explaining this in more depth, so I think it would be good to search around on there too for more examples.

[Jasraj Parmar 3H]

Dipole Dipole interactions occur when there are two polar molecules that interact with each other.

[Ashlen Bullock 1H]

I think that H and C(for hydrocarbons) have such a low electronegativity difference that they are considered nonpolar and therefore only have dispersion forces. Examples of this would be molecules like CH3 and CH2CH3. Basically any molecule with only C and H.

[Binyu You]

I believe dipole dipole interactions is when two polar molecules with each other and when the slightly positive end interact with the slightly negative end.