Intermolecular forces are important in creating ordered arrangements in liquid crystals. What types of intermolecu- lar forces exist in a sample of the following compound?

Video transcript

Hey everyone, we're told that the formation of ordered structures in liquid crystals is dependent on inter molecular interactions. What inter molecular forces are present in the following sample. First. Starting off with hydrogen bonding, we do see that this is actually present. We know this is present because hydrogen bonding occurs in compounds where hydrogen is directly connected to an electro negative element, which would be our fawn elements, flooring oxygen and nitrogen. As we can see in our sample, we have a nitrogen attached to a hydrogen. So we do have hydrogen bonding present. Now let's go ahead and look at dipole dipole interaction, Dipole dipole interaction occurs between two polar covalin compounds. So we do see that this is actually present as well. And the reason why is because the electro negativity difference between carbon and oxygen is 1.0, so our carbon oxygen bond is polar. So that means this sample exhibits dipole dipole interaction. Now let's go ahead and look at dispersion forces. Dispersion forces is present as well. And the reason why is because this is present in all compounds. Next looking at ion dipole interaction, Ion dipole interaction occurs between an ion and a polar covalin compound. Looking at our sample, we do not see any ions present. So this can't be our answer. Next looking at induced dipole interaction, this occurs when a non polar compound interacts with a polar compound. Again, we do not see this present as well. So this can't be our answer. Now looking at our answer choices, it looks like answer choice B matches our answer. Now, I hope that made sense and let us know if you have any questions.