In this video, we're going to talk about condensed formulas including parentheses and parentheses with subscripts. So here we're going to say that groups that are in parentheses are branches or branch structures. So example, we have Chapter 3 here. If we take a look at this structural formula, we'd see that we have these three carbons here in a row together, and branching off of that middle carbon is our chapter three group.
Now if we change the structural formula into our condensed formula, we'd start out by saying we have CH3 group here, which is shown here. That then comes after that CH2 group right here. Branching off of that CH2 group is our CH3 group up here? To designate it as a branched structure, we put it in parentheses and then we continue down our chain. After the CH2 is our CH3.
So after this branched group here branch structure, we write CH3. So as our molecules or compounds become more and more complex, we're going to sometimes need to utilize parentheses to talk about the branched structures coming off of my main chain, right. So this is just one way we can illustrate that this CH3 in this particular structure represents A branched structure.
All right, So we're going to start doing more and more complex ones, and we're going to incorporate more and more parentheses.