Questions tagged [orbitals]
An orbital is a one-electron wavefunction, usually derived by solving the Schrodinger equation. This tag applies to questions about all forms of orbitals; additionally, questions about the construction and properties of molecular orbitals should be tagged with [molecular-orbital-theory].
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The sign of the lobes in an atomic orbital
In atomic orbital diagram of an atomic orbital, the lobes are represented as either positive or negative. It is said that the wave function is 'positive' where the lobe is depicted positive and '...
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Carbonyl and thiocarbonyl 13C NMR
According to this paper, the deshielding effect of C=S group is specifically due to the delta(11), which is the least shielded component. However, the conclusion tells me that this component is ...
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1,3-butadiene conformation difference [duplicate]
I am aware that there are 2 well-known conformations of 1,3-butadiene which is s-cis and s-trans conformation.
The s-trans conformation is clearly more stable than the s-cis conformation whose ...
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Do d-orbital electrons shield each other or not?
"The shielding of one 4f electron by another is less than that of one d electron by another, and as the nuclear charge increases along the series, there is fairly regular decrease in the size of ...
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How does more s character shorten bonds and strengthen bonds?
I'm aware that having more s character means that electrons are in the lowest energy state (?) and very close to the positive atomic nucleus. But then what’s the connection between having electrons ...
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Is the energy difference between the 2s and 2p orbital smaller than the difference between 3s and 3p?
on this website (https://physics.nist.gov/PhysRefData/ASD/levels_form.html), you can look up atomic spectra. For example, if you query "Na I", you will see that the Level (cm^-1) for the ...
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Lewis dot structure vs orbitals
I am currently teaching myself AP Chemistry, so am at a very basic level still.
I am studying chemical bonds now, but am wondering why the orbitals don't make a difference to the way atoms bond.
To ...
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How did scientists prove that electron configuration was true if we do not know exactly where electrons are? [closed]
In Wikipedia, there is an entry for electron configurations
which explains all about them, but I did not find from this article how they were discovered. If we take into account Schrodinger's quantum ...
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Why is Sulfur Trioxide has SP² hybridization? [duplicate]
When I google what is the type of hybridization in SO₃ it gives me "SP² hybridization". The problem I have is why does it has the above hybridization when it has 3 double bonds with the ...
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Why does the two OH bonds in H2O have different bond disassociation enthalpies? How does the bond cleavage happen here?
I came across this question, and in the text it was written as 'change in the chemical environment'. I wasn't satisfied with this explanation, so I am looking for a more detailed answer on this matter ...
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How does the concept of the electron shell (also called energy level) and the orbital coexist? [closed]
Running into a bit of confusion trying to understand the atomic structure and the root cause is mostly related to orbitals and energy levels.
At a basic level, I was taught that electrons orbit the ...
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Why can s and p orbitals of one atom form hybrid orbitals but the overlaping of s & p orbitals of two different atoms don't form a molecular orbital?
So my question is in the title : Why can s and p orbitals of one atom form hybrid orbitals but the overlapping of one s orbital and one p orbital (perpendicular to the bond axis) of two different ...
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Do the paired electrons of subshells' degenerate orbitals contribute to the total exchange energy?
For instance, in d7, there are 5 electrons with the same spin, and 2 electron with the opposite spin, meaning that there are only 3 unpaired electrons. So, which of these would be correct?
(i) Total ...
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Nephelauxetic effect and covalency of metal-ligand bonds
As I was reading about nephelauxetic effects, which is the effect that atomic d-orbitals are bigger in a complex than in gaseous metal ions. The Racah interelectronic repulsion parameter gets smaller, ...
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What kind of hybridisation is there around the central carbon atoms?
I am currently working on an assignment and I am confused about what kind of hybridisation exists for the first condensed structure CH3CN. Does the CH3 have sp2 hybridisation? I suspect its that ...
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