CHI3 vs CHF3

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Chloe Alviz 1E
Posts: 102
Joined: Sat Aug 17, 2019 12:17 am

CHI3 vs CHF3

Postby Chloe Alviz 1E » Mon Nov 18, 2019 3:15 pm

Why does CHI3 have the higher boiling point if CHF3 is more polar (higher electronegativity)?

Tai Metzger 3K
Posts: 103
Joined: Sat Aug 24, 2019 12:17 am

Re: CHI3 vs CHF3

Postby Tai Metzger 3K » Mon Nov 18, 2019 3:18 pm

Hi Chloe! CHI3 had a higher boiling point because it has many more electrons and is much larger, causing the london dispersion forces to be greater than the dipole-dipole interactions of CHF3.

nicolely2F
Posts: 149
Joined: Sat Sep 14, 2019 12:17 am

Re: CHI3 vs CHF3

Postby nicolely2F » Mon Nov 18, 2019 8:32 pm

Tai Metzger 3K wrote:Hi Chloe! CHI3 had a higher boiling point because it has many more electrons and is much larger, causing the london dispersion forces to be greater than the dipole-dipole interactions of CHF3.

I thought F's high electronegativity would overcome dispersion forces?


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