3.F.15
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3.F.15
Why does AsF3 have a higher boiling point than AsF5? I drew out the Lewis structues and I noticed that As has a lone pair in AsF3. Does this contribute to the strength of its intermolecular forces?
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Re: 3.F.15
It is because AsF5 only has London Dispersion Forces whereas AsF3 has LDF along with dipole-dipole which are stronger intermolecular forces. This leads to higher boiling point. Hope this makes sense!
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Re: 3.F.15
Could you explain how you know that AsF3 has dipole-dipole interactions but AsF5 does not?
Re: 3.F.15
AsF3 has lone pairs which cause the molecule to be polar. As a result, this causes the molecule to have a dipole-dipole interaction. Polar molecules usually possess dipoles.
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