Questions tagged [nomenclature]
This tag should be used for questions about the naming of compounds and elements, usually using systematic names according to IUPAC recommendations, but also using retained traditional names.
1,168
questions
5
votes
2
answers
27k
views
What is has a higher priority in naming organic compounds, alkyl groups or halides?
2-Chloro-3,3-dimethylbutane or 3-Chloro-2,2-dimethylbutane?
According to these sources, both are correct:
NIST/TRC Web Thermo Tables (WTT)
ChemSpider
2
votes
1
answer
349
views
How to name an ester with an alkene or alkyne as the R group? [closed]
More specifically, see the image down below:
Would it be pentan-2-ene-3-yl propanoate? Do you just add the 2-ene to specify the position of the double bond?
- 4,826
-1
votes
2
answers
76
views
Is methylenecyclopropane a cycloalkene?
Are all compounds with a ring and double bonds considered cycloalkenes? Can the double bond be outside the ring in a cycloalkene (example: methylenecyclopropane)
- 6,921
1
vote
1
answer
105
views
What is the priority of an alkyl substituent containing double or triple bonds, in comparison to the other functional groups?
If we have an alkyl substituent containing a double bond(s) or triple bonds(s), what is it's priority in comparison to other functional groups and substituents?
For example, take the compound given ...
- 99
2
votes
1
answer
121
views
How the tertiary carbons of cyclohexane are assigned the stereo-descriptors (r)?
We assign the stereodescriptors R and S for chiral centres - carbons and other atoms, as per the set of sequence rules (CIP rules).
The pseudochiral centres are given the descriptors (r) & (s) ...
- 759
4
votes
1
answer
3k
views
How is the alpha carbon defined in alkyl halides?
The α carbon refers to the first carbon that attaches to a functional group. According to this information, the alpha carbon in 2-bromobutane should have been the carbon next to the one with ...
1
vote
0
answers
76
views
How to indicate that a substance is in a standard state?
An superscript circle or Plimsoll is typically used to indicate that a thermodynamic property is that of a substance in its standard state. On the other hand, when writing a chemical equation we ...
- 22.5k
4
votes
1
answer
307
views
Nomenclature of C6H5CO-O-NH2
How to name the following compound using IUPAC nomenclature? I found benzyl carbamate to be very close to my structure, but couldn't find an exact compound online which matches mine.
- 1
-5
votes
1
answer
129
views
What is the correct name of H2SO2? Sulphoxylic acid or hyposulphuric acid [closed]
Given the oxidation state on S, it seems the correct name should be hyposulphurous acid, but I have seen multiple sources call it sulphoxylic acid, or both
What is the reasoning behind this ...
10
votes
3
answers
3k
views
What is "super" in superphosphate?
This question is inspired from a previous question(marked unclear). I don't know the context of that question but I was intrigued by a statement:
Superphosphate is used instead of just phosphate ...
30
votes
3
answers
11k
views
Is activated carbon classified as organic or inorganic?
Organic compounds are typically defined as “molecules containing carbon”. Wikipedia states that there for some historical (read: non-logical) reasons,
a few types of carbon-containing compounds ...
0
votes
0
answers
35
views
Can SMILES name any possible chemical?
Similar: Does IUPAC nomenclature have the ability to name all organic compounds? - The answer to this question was no.
A relevant statement from the linked, though it is not explained:
The closest ...
- 163
-4
votes
1
answer
49
views
What do the dots mean in DABCO's IUPAC name? [duplicate]
I came across this molecule with the following IUPAC name: 1,4-Diazabicyclo[2.2.2]octane
What do the dots inside the brackets mean, or where can I read about the IUPAC guidelines that require this?
- 46
9
votes
1
answer
10k
views
How to name tricyclic hydrocarbons?
Recently, I read about the nomenclature of bicyclic compounds, by mentioning the number of carbons between two bridgeheads. But, then I came across the structure of a weird type of compound, whose ...
- 4,606
-4
votes
1
answer
541
views
Are CH₃COOH and HCOOCH₃ same?
Can I write the formula of Acetic acid as HCOOCH₃ or COOHCH₃ insted of CH₃COOH would they represent the same compound with same covalent bond?
