Bootcamp OC #9 Question

[themuffinman11]

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Hey guys, so I'm confused why n-butylalcohol and n-butylamine have no dipole-dipole forces present, I was thinking they would have those forces because they are polar molecules.

Also, what does the "n" stand for in their names?

Thanks!

 

[sobertiger]

The molecules are not that polar. If not polar, there is no dipole moment (In this case there is some but it is negligible because the molecule has a long hydrocarbon chain which is nonpolar). If there is no dipole moment there is no dipole-dipole attraction.

n- stands for normal and is used for continuous chain with no branching.

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