Polarity of Organic Compounds

[Noah Baird 1A]

In a more complicated molecule, such as 3-phenylpropylamine, there is one end of the molecule that is polar (the end with the amine group), while the other end of the molecule is very non-polar (the phenyl group). How do we know if this compound as a whole is polar/will experience dipole-dipole interactions?

[906370887]

Hi, because that amine group is polar, the molecule as a whole will also be polar, because that amine group can interact with other polar molecules. I think if one part of the molecule is considered polar, it doesn't matter if the other end is nonpolar because the polar end will still exhibit characteristics of polar molecules.