Kill everyone. Today we're doing Chapter fourteen Problem six. And this from asked us how many Proton and Morrissey knows what we expect from each of the following compounds. So remember you're NMR signals will depend on how many unique, chemically distinct protons exist in the molecule. So if you determine the number of protons and where where they are located in the first example, you know that terminal methyl has three protons. This center here has one full time going down on DH. This proton this Carmen here has two protons. Mr. Mill Metal has three. So we also know that, um, Proton that come off off ch tools. These two protons can be chemically distinct if the molecule contains the stairs. Jannik centre stairs Jannik center means a Carl center. Carl Center is a carbon that has for you. Next, recipients bound to it. So we know that this carbon here is a stale carbon. So therefore most like you and me do. Our analysis will determine that these two protons are actually chemically distinct and exists in separate micro environments. Bill, go on, start from one side of molecule working away two next to determine harmony complete listing protons we have. So you start from the left side. So on the left side received that we have an A Carl Carbon here found three protons and these three protons. You can say that they are free into rotates about the single bond. So we can assume that these will all be chemically identical to one another there for producing one signal in the H and M R spectrum. Next, we move onto our Kyle center and is constantly we have a chlorine and a proton. And obviously we know that this proton, being in his own unique chemical environments, will produce a separate, unique chemical shift signaling our anymore spectrum. Now let's look at the proton adjacent to it, which are the siege? Two protons. So if we see here, we see that the upper proton assist to his electoral negative chlorine atom. While the bottom proton is Trans. Does Elektra native corn? Adama, What we What we know about Electra later Adams is that they withdraw electron density it away from your hydrant nucleus. So it actually makes your haijun less shielded. And when something is less shielded, we know that it will require a lower amount of energy to cause that spin, flip and residents So it will be downfield in our NMR spectra, however, something that is transferred only further away. So it's going to be feeling less of that electron density pulling effect from this election. Negative, Adam. So they'LL be more electrons. Ah, isolated and localized around the hydrogen nucleus, therefore causing ah higher amounts of energy to cause that spin flip So is going to be more shielded to the right side of our spectrum. So we know that the top proton must be chemically nick from the bottom proton. And then once again, we know that these three protons can spin around its signal bond, generating all one signals we have one, two, three, four, five unique protons in this example a small fee. Look at the second example we see that this carbon here is a stair genic center and we have a siege to hear. There's a good chance in these two protons will unique once again. Before we do that, let's just draw out all the protons we have in this molecule. So we know that typically terminal terminal carbons with their three protons can spin around the signal bond generating some sort of blurred effect and generating just one signal for these three protons as thes will all be equivalent and well can be considered identical. So you have one terminal, one terminal carbon here and one terminal carbon here. So we will have two signals from those six full terms And these two differ from one another. But they will be identical within the same carbon we'LL see if he moved down to this carbon here we see that this proton is in its own unique little environment All myself here and once again these protons off this carbon received at this card this proton here, Sister Electra, native chlorine and also to our method group here. However, this proton here is trans tr Electra Negative, Corrine, and also trance to our method group here. So we know that these two must exist also in is unique environment. So once again we have one, two, three, four, five You need any more signals from five unique protons. So now let's investigate these ones here. So if I were to draw out all my protons identify that this carbon here is It's Theo Genic center and we have a one siege to here and one siege to here. So these four protons most likely will be chemically distinct. But let's just work through it. Confirmed that so once again. And what we know is that these terminal carbons, these method groups, at the very end they produce one signal for those three protons. So weakness right away. See if there's anyone signal this is gonna be one signal. That's because of this free rotation and kind of blurring effect you see, with those three protons. We also know that the proton instead genetic center will be unique sense on little micro environment. Right here. I will also see that we have siege to religious interests. Theragenics Center. So we know the top Proton assist to our left from negative. Adam, Hey lied And our bottom put on his trance. So these two protons once again must be unique. But now what about the second siege? To hear this speech two is now two carbons away. Ferrar bro mean while this siege to we just finished was only one carbon away from this problem. So clearly this ch to that we're investigating now is going to be in a unique environment than the siege to those two protons we just finished analyzing. So we see that the once again, these the siege to this proton on top is two carbons away from being cyst to Romi and this proton our bottoms, two carbons away from being Trans first bombing. So these tomb once again must be unique and its own unique chemical environment. So, overall, what we see is that we have one, two, three, four, five, six, seven unique and more signals from seven unique protons.