How Do You Name Structural Features in Chemistry?

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In summary, the individual is seeking help with a chemistry lab, but has provided no context or details about the lab. They mention being able to name structures of molecules but are confused about features such as flat areas and troughs. The individual is advised to provide more information and context in order to receive help. Additionally, the use of descriptors such as flat areas and troughs is not common in chemical nomenclature, but may be used in discussions about mechanisms or other topics. The individual is also reminded to post in the appropriate forum for schoolwork help. It is unclear if the individual ever found their way out of the chemistry lab.
  • #1
afcwestwarrior
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i need help with this, i got lost in my chemistry lab,
i know how to name the structures of molecules, but features such as flat area, troughs etc.
 
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  • #2
Huh??
 
  • #3
huh...?
 
  • #4
i thought u guys were suppost to be chemist masters
 
  • #5
afcwestwarrior said:
i need help with this, i got lost in my chemistry lab,
Please describe what this lab is about (and use as much of the description as is provided in the lab manual/instruction sheet as possible). We've got no context to work on.

i know how to name the structures of molecules, but features such as flat area, troughs etc.
What kinds of molecules are you talking about here? I have not (and I suspect, neither has chemistree) come across a single reference to "flat areas" or "troughs" in the context of molecular structures. So, what this means is that your question is essentially meaningless to us.

If you would like help with this, you need to provide as much detail and context as is necessary for us to understand what you are talking about.

Also, since this is schoolwork, you should use the Homework & Coursework forums. Keep that in mind for next time.
 
  • #6
Flat areas, troughs, pleated sheets, helical coils, nematic, isotropic, cholesteric are all adjectives that describe features of molecules and molecular systems. They are generally not used in chemical nomenclature but are sometimes used (with great enthusiasm) when discussing things like mechanisms and so forth. So one might describe a reaction as occurring from the alpha or beta face of a steroid compound or the endo or exo side of a bornene compound or the re or si face of a prochiral molecule.

Hope it helps... I didn't quite understand your question.

Did you ever find your way out of the chemistry lab?
 

FAQ: How Do You Name Structural Features in Chemistry?

How do I determine the correct order for naming structural features?

The correct order for naming structural features is to start with the parent chain, which is the longest continuous chain of carbon atoms in the molecule. Next, any substituents (atoms or groups of atoms attached to the parent chain) should be named and numbered according to their position on the parent chain. Finally, any functional groups should be named and numbered according to their position on the parent chain.

What is the difference between a prefix and a suffix in structural naming?

A prefix is a term that is added at the beginning of a name to indicate a specific structural feature, such as "methyl" or "chloro". A suffix is a term that is added at the end of a name to indicate a functional group, such as "ol" for alcohols or "one" for ketones.

How do I name a molecule with multiple functional groups?

When a molecule has multiple functional groups, the functional groups should be listed in alphabetical order in the name. The numbering of the parent chain should start at the end nearest to the first functional group in the alphabet. If there are multiple functional groups of the same type, a prefix such as "di" or "tri" should be added before the functional group name to indicate the number of groups present.

Can I use common names instead of systematic names in structural naming?

While common names may be easier to remember, it is important to use systematic names in structural naming as they provide a more precise and consistent way of identifying molecules. Common names can vary between regions and may cause confusion, while systematic names are universally recognized.

How do I name a cyclic molecule in structural naming?

Cyclic molecules are named by indicating the number of carbon atoms in the ring with the prefix "cyclo" before the parent chain name. The carbon atoms in the ring are then numbered consecutively, starting from any point on the ring. If there are substituents attached to the ring, their position should be indicated by the appropriate number in front of the parent chain name, followed by the prefix "cyclo".

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