Depending on the metallic element, it may well be appropriate to have additional articles covering specific compounds or groups of compounds, or specific reactions. And regardless of whether you're attached to this or this, if you think about it, it's fundamentally the same molecular structure. These established systems are all acceptable, but should remain consistent within an article. What you would do is you definitely have a cyclopentane ring, so this would definitely be a cyclopentane. Now, you might say, hey, Sal, how do I know which carbon to add it to? So that's what you do when you're attached to that guy right over there.
What about the situation where it looks like this? And then we have two methyl groups attached right over there, and it's attached on the one carbon, right? We use the term Iso to name an organic compound containing all carbon atoms except one form a continuous chain. . But these are fundamentally two different molecular structures. The term Sec in organic chemistry refers to the attachment at a secondary carbon. That describes just that right over there. There are many prefixes in organic chemistry that we use to identify the groups present in compounds and to name organic molecules to distinguish them from each other. With a mind rooted firmly to basic principals of chemistry and passion for ever evolving field of industrial chemistry, she is keenly interested to be a true companion for those who seek knowledge in the subject of chemistry.
So this could be called sec-butylcyclopentane or s-butylcyclopentane. Not to be confused with ', which indicates a missing. So it'll just be a pentagon, so one, two, three, four, five, and it's a ring, so you can connect them. It is widely, if sometimes incorrectly, used on Wikipedia for the titles of articles about inorganic compounds. So, once again, this is a butyl, but instead of being bonded to the cyclopentane on my first carbon, maybe it's bonded right here.
I'm going off the screen here. Prop- is for three, but with a methyl group now is attached to the one, two, the second carbon. A redirect from the uncapitalized version should be created to simplify linking from other articles. Unless otherwise, there cannot exist a secondary carbon. It's all symmetric around there.
This practice has been abandoned in later publications. So if you look at this right here, what we do is we just consider the chain where we attach. Note that this is an exception to the usual English style for parentheses. No hyphens or italics are used in these cases. So it's 1,1-dimethylethyl- and then finally, cyclopentane. In order to save space, structural formulas will often be written out in one line. The names of chemical compounds and chemical elements when written out, are in English, rather than proper nouns.
So 1-methyl, you have a methyl group right there on that first carbon. This is just straight up butyl so you would call this butylcyclopentane. This right here, this right there is iso-butyl. Isomers Different compounds that have the same molecular formula are called isomers. Three carbons, that's the prop- prefix, so we're dealing with a prop-, and it's all going to be one group, so it's a propyl group. Exceptions would be where the pharmaceutical use of a certain compound is secondary to other applications commodity chemical, synthetic intermediate, etc.
We just have a ring and it's connected to a butyl group at some point. The term Iso in organic chemistry refers to an organic compound containing all carbon atoms except one form a continuous chain. So hopefully, that doesn't confuse you too much. So maybe I should clear out systematic here just so it's clear to you that everything we've done here is common naming. This right here is not just butylcyclopentane. What are the systematic naming? Therefore, its prefix is not applicable to a short chain carbon chain.
Whenever the penultimate 2nd carbon posses a branch of methyl group it is iso. The use of this prefix is to name a compound having a functional group attached to a secondary carbon atom in a molecule. Try my before moving on with the following modules. And actually, if you have more than five or six carbons in the group, they always or they tend to always use the systematic naming. This is commonly done even when writing complete structural formulas, so to the difficulty of confining the bond lines to two dimensions. And everything I'm doing is obviously free-hand. But in the systematic naming, what we try to do is we try to name this group right here just as we would name a traditional chain, but we ended it with an -yl.
I think if you watch the video over and over and try to practice it with your own problems, you'll see that the systematic name way is actually pretty, pretty logical. Furthermore, a better nomenclature system can name even a very complex molecule. Let's say there are four carbons, so we have one, two, three, four carbons and we're bonded to this one right over here. Thus, it is californium but the symbol is Cf, and einsteinium, but symbol Es. Both numerical and non-numerical prefixes are followed by a hyphen. This convention should also be applied to all compounds and derivative names of these chemicals: sulfate not sulphate; sulfuric not sulphuric; etc. So we have our cyclopentane right there, and we have a-- I guess we could call it a butyl group.
They contain the same numbers of the same kinds of atoms, but the atoms are attached to one another in different ways. Note that names for odd or rare chemicals are uncapitalized like common ones, and thus uranium and plutonium symbols U and Pu should be uncapitalized like carbon or iron symbols C and Fe. They are capitalized at the beginning of a sentence or title, but not elsewhere. Isopropyl means three carbons, one carbon linked to two similar carbon groups. I'm touching the first carbon here.