A conjugated ring of unsaturated bonds, lone pairs, or empty orbitals which exhibit a stabilization stronger than would be expected by the stabilization of conjugation alone.
2
votes
1answer
34 views
What is the influence of an alkyl-hydroxy group on a benzene ring?
We all know that an $\ce{NO2}$ group attached to a benzene is a deactivator, and it directs and substituents that would be adding to the meta position to the $\ce{NO2}$. For an alkyl group attached ...
3
votes
1answer
52 views
What is the substituent on this benzaldehyde? (MS attached)
I have no clue what the substituent may be.
The molar mass of the unsubstituted benzaldehyde is 105g/mol (subtracting one H, where the substituent will be). So the substituent is around 30-33g/mol. ...
2
votes
3answers
113 views
How does Sodium Bicarbonate act as a Deodorizing agent?
I was reading this other question on the site: Deodorizing using baking powder instead of baking soda.
Apparently, baking soda is used quite often as a cleaning and deodorizing agent. From what I ...
4
votes
2answers
118 views
Why aren't lower aromatic organic compounds taught?
Why aren't aromatic compounds with 3, 4 or 5 carbon atoms taught at high school level chemistry? We are instead directly taught about aromatic compounds with 6 carbons/benzene rings. Why?
My core ...
1
vote
0answers
41 views
Help Identifying Chemicals
I was trying to isolate elemental bismuth from pepto bismal (bismuth subsalicylate) using the process seen here but after I added the HCl, instead of getting a pink foamy substance I got a white ...
1
vote
1answer
102 views
How do you Benzylate (add a benzene group to) cyclic compounds?
How do you add a benzene group to cyclic compounds like piperidine, piperazine and phenyl derivatives?
Piperidine
Piperazine
6
votes
1answer
73 views
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 ...
7
votes
1answer
59 views
Why are smoke odors persistent in fabrics?
Obviously smoke is very complex, but apparently phenol compounds are the main components of wood smoke that produce the characteristic odor. (One of more significant of these compounds seems to be ...
6
votes
1answer
83 views
What does the charge distribution around a Stone-Wales defect look like?
I'm reading a book on carbon nanotubes (P.J.F. Harris, Carbon Nanotube Science, to be specific) at the moment and puzzling about Stone-Wales or 5775 defects. This is where two adjacent carbons undergo ...
7
votes
1answer
116 views
Why does benzene bend in this reaction?
From here
I can see why hapticity changes here, but not why it is necessary for the benzene ring to bend. The resonance energy of benzene is pretty large, and there's no balancing increase in ...
10
votes
3answers
151 views
Why are arenes with conjoined benzene rings drawn as they are?
Whilst we are taught to represent benzene as below (A) due to its delocalised electrons, however when two benzene rings share carbons (e.g. naphtalene) it seems to be more commonly represented in ...
9
votes
1answer
155 views
Do terminal amides participate in $\pi$ stacking?
In a crystal structure I've determined, a triazole ring on my ligand appears to be stacking with a tyrosine (top in picture):
However, there is also an amide, courtesy a glutamine, near it ...
10
votes
2answers
275 views
Why does nitration yield a meta product in this reaction?
When N,N-dimethylaniline is reacted with $\ce{H_2SO_4}$ and $\ce{HNO_3}$ it gives mainly the meta product, even though $\ce{NMe_2}$ is an ortho / para directing group. Why is this?
