why is Dz^2 orbital filled first in sp3d hybridization
Not just this, my teacher told me there is a specific order for just d orbitals where dz2, then dx2-y2, then dxy orbital gets hybridized.
I am confused as to why is this (I can understand for first 2 cuz they are diff but why dxy before dzy or dxz)
15 Replies
@Dexter
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.It has to do with symmetry, which is beyond our scope but here is the detailed answer
https://chemistry.stackexchange.com/questions/66698/theoretically-which-d-orbital-participates-in-sp3d-and-sp3d2
Chemistry Stack Exchange
Theoretically, Which d orbital participates in sp3d and sp3d2?
This question is regarding the old way (inaccurate) $\ce{PCl5}$ and $\ce{SF6}$ are taught in elementary chemistry.
In the crystal field splitting diagram for triagonal bypyramidal geometry, $\math...
If you are wondering what symmetry is:
https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Symmetry_(Vallance)/01%3A_Chapters/1.02%3A_Symmetry_Operations_and_Symmetry_Elements
Chemistry LibreTexts
1.2: Symmetry Operations and Symmetry Elements
A symmetry operation is an action that leaves an object looking the same after it has been carried out. Each symmetry operation has a corresponding symmetry element, which is the axis, plane, line or …
but why dxy before dzy or dxzNot sure about this, as they are all at t2g, if you are talking about sp3d3, that is incorrectly taught in coaching. Also, even NCERT is incorrect when teaching SF6, PCl5. It is only s and p orbitals that take part, including in IF7 https://chemistry.stackexchange.com/questions/31584/why-an-asymmetric-geometry-with-sp3d-and-sp3d3-hybridization Here is IF7 detail: https://chemistry.stackexchange.com/questions/28692/pbp-vs-tbp-geometry/29120#29120
Chemistry Stack Exchange
Why an asymmetric geometry with sp3d and sp3d3 hybridization?
A molecule in which the central atom is $sp^3d^2$ hybridized ($\ce{SF_6}$), for example, acquires an octahedral shape, which can be explained by assuming that the hybrid orbitals arrange themselves...
Chemistry Stack Exchange
PBP vs TBP geometry?
Why are the axial bond lengths greater than those of the equatorial bonds in a trigonal bi-pyramid (TBP) geometry molecule; but the opposite is true for pentagonal bi-pyramid (PBP) geometry molecul...
So if your question is:
1) what to do for JEE Main/NEET: Mug vomit what is in NCERT
2) what to do for jee advanced: They wont ask things that are proven to be incorrect, so no chance any of this is coming in JEE adv.
Wait what do you mean that IF7 only uses s and p subshells
It has 7 bonds
How does the atom not excite electrons to d subshell
I searched a bit online it says that only heavier elements use d block for bonding (not sure if they make Covalent bond in the first place)
just check that post out na goes into detail
right exactly, hydbridisation is an archaic idea, not really used but since ncert me hai, we mug :D
How would you say should I learn all this stuff the right way
I mean agar JEE syllabus ke pov se dekhe toh I can see that aadha material outdated hai
So that I actually get deep knowledge and wont have to mug
see jee main = mug ncert
jee advanced for ioc = they ask obscure stuff, but this time around almost all qs (barring one) were doable with ncert knowledge, if you read the lab manual inside out too.
deep knowledge thing is for fun which one can do if they have extra time/interest.
Yeah but NCERT has some wrong stuff
Why do they even ask stuff from it
Btw is this knowledge necessary for other chapters in our JEE adv syllabus
Its that chats on reddit say that the real truth of chemistry only gets discussed in PhD level courses
only jee main and neet do
jee adv me galat cheezein nahi poochte and if they do you challenge and they fix
nta is joke from this pov
lol ignore all that gas
phd people also kinda know what they are working on
not all of 'chem' :)
nature is mental man practically impossible to know everything :P
what we spoke of here? not sure haha. but it is more of lore to just know.
it is all bonding ++
shall we close this one out?
Alr
+fsolved
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