The naming of molecules and elements, usually according to IUPAC standards, but also the accepted uses of traditional ones.
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What is octanamide used for?
I read a paper about enzyme-catalysed synthesis of octanamide.
What is octanamide used for?
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Pronunciation of “alkene” vs. “alkyne”
Maybe this is better in English.SE, but I think I'm more likely to get better responses here in the "industry" site. This post got me thinking; how do you pronounce "alkyne" (a hydrocarbon with a ...
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Correct definition of terminal alkynes?
My textbook, Organic Chemistry (6th edition) by Brown, Foote, Iverson, and Anslyn, states:
Alkynes in which the triple bond is between carbons 1 and 2 are commonly referred to as terminal alkynes.
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51 views
What does the eta notation mean in the naming of a transition metal complex?
I am reading a paper (Gutel et al., J. Mater. Chem. 2007, 17, 3290-3292) and I have come across the following reaction:
In organic solvents, the decomposition under mild conditions of
...
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38 views
Are there computer searches for new theoretical minerals in a similar vein to Folding@Home or SETI@Home?
As a surprise gift to a friend I would like to discover a new theoretical mineral and have it named after them. I have some understanding that not all minerals have been discovered, and some minerals ...
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Where did the INN name of Fentanyl come from?
Where did the INN name of Fentanyl come from? Fentanyl is a potent anilidopiperidine opioid. I know that the INN name of paracetamol came from its chemical name para-acetylaminophenol ...
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153 views
“Tie-breaker” rules for IUPAC nomenclature of organic compounds
I have three questions:
To find the parent chain of a saturated hydrocarbon, we have to find the longest chain and then if we have a choice, we choose the one with the more substituents. But what if ...
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55 views
What is the proper nomenclature for CH₂O₂?
Can you tell me what's the nomenclature of $\ce{C H_2 O_2}$?
What is its IUPAC name?
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Why do the names of most chemical elements end with -um or -ium?
Why do the names of most chemical elements end with -um or -ium for both primordial and synthetic elements?
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Correct nomenclature for reaction types
What is the correct name for a reaction like this?
$$ \ce{ 4MnO2 ->[500\ ^\circ \text{C}] 2Mn2O3 + O2 ^}$$
Is it a synthesis, or a Decomposition?
I tried to find it out with ...
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87 views
Are different enclosing mark types in chemical names needed to differentiate between substances?
What is the significance of enclosing marks in chemical names in determining the uniqueness of a substance (organic and inorganic)?
Can a simple change in the type of enclosing mark used indicate ...
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What is the IUPAC nomenclature of alkane with higher C atoms (more than 200)?
What is the IUPAC nomenclature of alkane with higher C atoms (more than 200)? Example, what is the IUPAC nomenclature of $C_{205}H_{412}$?
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Name of a proton bonded to a hydroxyl carbon
What do you call the proton in a CH-OH configuration?
When discussing an NMR spectrum, I can talk about the hydroxyl proton, but it seems clumsy to refer to "the proton on the hydroxyl carbon".
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What is the name of the “primary” carbon in a benzene derivative?
If we have a benzene with a single substituent, such as chlorobenzene, what do we call the carbon atom to which the group is attached? I'm familiar with the ortho- meta- para- nomenclature, but the ...
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3answers
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Is there a standard symbol for molar density?
Is there a standard symbol for molar density, i.e. $n/V$, where $n$ is the total number of moles of every species in a system?
I realise that there is standard term "molar volume", which is the ...
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What do graphene “armchair(5,5)” and “zigzag(5,0)” refer to?
I am reading some articles about the electronic properties of graphene and while reading it I came across graphene armchair and zigzag structures, which have different bond structures.
The two ...
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Naming this substituted cyclohexenol
Here's the molecule:
So far I've tried:
6-methylcyclohex-2-en-ol and
4-methylcyclohexen-3-ol
but both are wrong. I'm rather confused as to where I should start: the alcohol or the double bond?
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Why is methane's molecular formula conventionally “CH4”, while water is “H20” (among others)?
While revisiting some of my old notes about the Miller-Urey experiment, I stumbled across the "equation"...
Electricity + $\ce{CH4~/~ NH3~/~H2O~/~CO}$ = Amino Acids
This got me thinking.
...
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153 views
Bisulfate vs Hydrogen sulfate
What's the difference between bisulfate and "something" hydrogen sulfate?
Has there historically been a preference for one over the other?
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2answers
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Iron nomenclature differences between Iron(III) and Ferric [closed]
As I was doing my Ap Chem homework, sometimes the question would use Iron(III) and sometimes it would use Ferric. What's the difference in usage? Also, what's the difference between Iron(II) and ...
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1answer
142 views
What is the name of cyclopropane with a double bond?
I was drawing out all the isomers of $\ce{C5H8}$ and came upon two structures of cyclopropane attached with double bonds. The group is neither a methylene nor an ethyl... what is it? What are the ...
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1answer
54 views
What is the exact nomenclature of ionization?
I'm a little confused as to what reactions are considered ionizations. Is there any requirement for the educts, for example?
Some references suggest that it's only considered an ionization if you ...
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261 views
How to name this cyclic compound with an O
I am wondering how to name the below compound. I was going to call it a cyclobutane, but not all of the atoms making up the ring are C (1 is an O). So then I was going to call it a butane, but that ...
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287 views
Why is arsenous acid denoted $\ce{H3AsO3}$?
Inspired by this question, I'm wondering why arsenous acid is frequently denoted $\ce{H3AsO3}$, as opposed to $\ce{As(OH)3}$, which would appear to more accurately reflect its connectivity?
[edit]
I ...
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202 views
Explain the nomenclature of 7-amino-4-methylcoumarin
Can someone explain the nomenclature of 7-amino-4-methylcoumarin, pictured below (from the Sigma-Aldrich website)?
The alpha-carbons of the methyl- and amino-groups here are separated by a minimum ...
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143 views
How are non-carbon stereogenic centers named (S/R)?
The R/S naming system for stereocenters relies on the Cahn–Ingold–Prelog priority rules to rank the four substituents of a stereocenter; the R or S name is then attributed depending on the spatial ...
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347 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 ...
