Hybridized Orbitals

$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$

Max Hayama 4K
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

Hybridized Orbitals

Can anyone explain why sp^3d^2 exists? Why is it that the d orbital is involved in hybridization?

Rhea Churi 4K
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

Re: Hybridized Orbitals

The s and p orbital combined only make up 4 areas of electron density. However, as we've seen a molecule can have more than that. Thus, the d orbital gets involved because it contributes electrons while bonding and can be part of a hybrid orbital.

Alicia Gibbons 1B
Posts: 31
Joined: Fri Sep 28, 2018 12:17 am

Re: Hybridized Orbitals

Consider structures where the central atom has more than four areas of electron density. Looking at VSEPR models, these include octahedral, square pyramid, trigonal bipyramidal, etc. They will need to include d in their hybridization orbitals

Maria Solis Disc 1G
Posts: 63
Joined: Fri Sep 28, 2018 12:27 am
Been upvoted: 2 times

Re: Hybridized Orbitals

If you look at the atoms normal electron configuration, it may be inaccurate to the number of bonds that the atom has in a certain molecule. The hybridized d must be included if a atom has more than 4 bonds (8 electrons), such as those that exceed the octet rule.

lindsey_ammann_4E
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am

Re: Hybridized Orbitals

The d orbital exists when there is an expanded octet.