All Questions
Tagged with electrons organic-chemistry
24
questions
6
votes
1
answer
1k
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Inductive effect on stability of free radical
How does inductive effect affect the stability of free radical?
I can't seem to understand whether the carbon with the odd electron is deficient or not.
That is, whether a +I group, like alkyl, will ...
21
votes
2
answers
644
views
Some materials emit more photoelectrons than others - why?
I've been experimenting with some materials by changing the wavelength of the incident light on the material and detecting photoelectrons, like in the diagram below:
I might get a response that looks ...
1
vote
0
answers
75
views
Order of radical dimerization ability
In a question I came across recently, it was asked to arrange the following radicals in the ascending order of dimerization ability.
I have read about the triphenylmethyl radical undergoing Gomberg ...
0
votes
1
answer
163
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What is resonance in actuality? (How does electron sharing, bond formation, and overlapping of orbitals take place in resonance hybrids?) [duplicate]
In this post I got an answer to the question "what is resonance".
What I understand overall is that "resonance is not something really happening physically, it is just an idea to make ...
3
votes
1
answer
2k
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Confused about identifying delocalized electron pairs in Isoniazid
I have to identify delocalized electron pairs in Isoniazid (pairs not shown in the image below):
I know the nitrogen in the ring has a localized electron pair, since it already forms a pi bond. I'm ...
3
votes
1
answer
967
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Arrow pushing: why does the O become positive when its lone pair becomes a double bond?
In the following image:
The oxygen's top pair of electrons forms a double bond.
But in a covalent bonds, aren't the electrons shared? So won't the oxygen still have these $2$ electrons (that it ...
-1
votes
2
answers
93
views
Confusion regarding orbital, electron and Quantum no’s [closed]
Now , In some textbook I have read that orbital is nothing but the shape of electron . s,p,d orbitals etc.
So , after knowing shape of an orbital . I got to know that inside the orbital is an electron ...
2
votes
0
answers
75
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Number of π electrons in all trans-2,4,6-octatrienoic acid
Sketch the Lewis structure of all trans-2,4,6-octatrienoic acid.
(a) Consider the delocalized π electrons. Employ the particle-in-a-box model. Drawing on your knowledge about the occupation of ...
0
votes
0
answers
22
views
Organic Based Photocathode
What organic molecules have a relatively small work function, preferably in the visible spectrum? Polycyclic aromatic hydrocarbons are in the low UV spectrum, making it unsuitable for the photocathode ...
1
vote
0
answers
139
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Why does allyl anion have only two resonance structures?
There are only two resonance structures of allyl anion with negative charge distributed over positions 1 and 3:
$$\ce{\overset{-}{C}H2-CH=CH2 <-> CH_2=CH-\overset{-}{C}H2}.$$
What's the criteria ...
0
votes
2
answers
3k
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Why doesn't Silicon act as the basis of a class of compounds like Carbon is for organic compounds?
Carbon is the basis of organic materials in large part due to it's four valence electrons. Silicon also happens to have four valence electrons as well but does not serve as a basis for a large set of ...
3
votes
1
answer
359
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But what are anti-bonding pi-orbital? In search for an intuitive explanation [closed]
Imagine that you want to explain to an undergraduate why they have to to shade the pi-orbitals in a symmetrical way, i.e. dark on top (+), white on bottom (-) for two neighbouring pi-orbitals because ...
0
votes
1
answer
2k
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Why do we see complementary colors in UV/Vis Spectroscopy? [closed]
From what I read, a compound that absorbs visible light will produce a complementary color (using the color wheel), that can be seen. Why is this the case? Is it because, for example, if a molecule ...
2
votes
1
answer
7k
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Why m-hydroxybenzoic acid has higher acidity then p-hydroxybenzoic acid?
Why m-hydroxybenzoic acid has higher acidity than p-hydroxybenzoic acid?
I have a reasoning that since hydroxy group is an activating group, then it increases the electron density on its para ...
3
votes
1
answer
512
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Are all lone pairs considered as π-electrons?
According to me, in methylenepyran 8 π-electrons are present as there are 3 double bonds. Therefore, 2 × 3 = 6 π-electrons and 2 π-electrons as one of the two lone pairs of oxygen will participate in ...