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Results tagged with molecular-structure
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user 81
This tag should be applied to questions that deal with the particular arrangement of atoms in a molecule, the so-called molecular structure or geometry.
1
vote
Is there a particular reason for the way these structures are represented?
The way you draw molecules depends on the purpose of the drawing.
If all you are trying to convey is the connectivity of the molecules (which atoms are connected to which other atoms) then it matters …
- 37.8k
1
vote
Cyclopentadiene planar
There are two confusions here
The first source of confusion is the caused by the fact that the most common occurance of the five membered cyclopentadienyl ring isn't cyclopentadiene but the cyclopenta …
- 37.8k
1
vote
Why is the Sulphur Dioxide molecule polar?
Sulfur dioxide has a dipole moment because of its shape
Bonds between dissimilar atoms in molecules inevitably have dipole moments (though they are sometimes small). The only way the whole molecule c …
- 37.8k
4
votes
Accepted
Can molecule have just h-bonds between its parts
There are some grey areas in the normal usage of the word 'molecule'
The normal usage of the term molecule is accurately described by your quote from the Khan Academy. The majority of molecules chemis …
- 37.8k
5
votes
Accepted
Why does tert-butyl alcohol smell like camphor?
They are more similar than you think if you view them using space filling models
Part of the problem in judging how things smell is that smell is a very complex sense. There are possibly hundreds of d …
- 37.8k
3
votes
Are phenyl and allyl groups in prop-2-enylbenzene coplanar?
Probably not
Part of the problem with the question is geometry. Any two points always form a plane. What I suspect you mean is "is the allyl double bond in the same plane as the benzene ring?" in whic …
- 37.8k
6
votes
Accepted
How many covalent bonds are there in carbon suboxide?
Widely used terminology might not match what an examination wants
It is possible that your question wants the answer 8 in this context, but whether this answer would be widely accepted by anyone famil …
- 37.8k
9
votes
Accepted
Why is a conformer of hydrogen peroxide rotationally inactive?
"Rotationally inactive" is probably about the rotational spectrum of the molecule
I'm assuming the (unsaid) context of the question is that it is about rotational spectroscopy as this is where the ter …
- 37.8k
2
votes
Accepted
Structure diagrams indicate plausible structures?
Structural diagrammes illustrate connectivity in molecules but they are often very limited in their ability to represent the real 3D shape of complex structures.
A drawing on a 2D surface can never p …
- 37.8k
10
votes
Accepted
How does resonance fail in approximating chemical structures?
Resonance structures are one model that explains bonding, but not a very good one
Resonance structures are widely misunderstood. Individual resonance structures are not real compounds that exist, but …
- 37.8k
17
votes
Accepted
Help understanding how "steric effects" are distinct from "electronic effects"?
The normal distinction between "steric" and "electronic" is based on whether the effect is transmitted through space or through bonds
All the normal physical interactions we experience are arguably el …
- 37.8k