Hybridizing Xenon: Exciting Electrons to d Orbitals?

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Discussion Overview

The discussion revolves around the hybridization of xenon, particularly whether electrons from the 5s and 5p orbitals are excited to the d orbital during this process. Participants explore the implications of hybridization on bonding in xenon compounds, including specific examples like XeF2 and XeF4.

Discussion Character

  • Homework-related
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions if hybridization involves exciting one electron each from the 5s and 5p orbitals to the d orbital.
  • Another participant suggests that two of the 5p electrons are excited to the vacant 5d orbital, resulting in four unpaired hybridized electrons.
  • A different viewpoint states that d-electrons do not play a major role in bonding in xenon compounds and that spd hybrid orbitals are not involved in bonding.
  • One participant challenges this by asking how xenon can form multiple bonds, citing XeF4 as an example.
  • Another participant discusses resonance structures for XeF2 and XeF4, arguing that the bonding primarily involves p orbitals on xenon and that hybridization may not enhance understanding of the bonding.

Areas of Agreement / Disagreement

Participants express differing views on the role of d orbitals in xenon's bonding and the necessity of hybridization, indicating that multiple competing perspectives remain without consensus.

Contextual Notes

There are unresolved assumptions regarding the role of d orbitals in bonding and the specifics of hybridization in xenon, as well as limitations in the explanations provided by participants.

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Homework Statement



When we hybridize xenon, do we excite one electron each from its 5s and 5p orbitals to its d orbital?

I know the ground state xenon looks something like this:
http://i.minus.com/jbt6v4btYTThFJ.jpg

But when it's hybridized does Xenon look like this?

http://i.minus.com/jkkyRXOE2bht6.jpg
 
Last edited by a moderator:
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Of the 5s and 5p electrons in the outermost orbit of Xe, two of the 5p orbital electrons get excited to the vacant 5 d orbital resulting in 4 unpaired hybridized electrons, 2 in 5p and 2 in 5d orbitals.
 
d-electrons play no mayor role in bonding in Xenon compounds. Especially there are no spd hybrid orbitals involved in bonding.
 
But how does xenon form so many bonds such as in xeF4
 
As I am not good in drawing in this forum, let's look at XeF2 instead:
You can write two mesomeric resonance structures:
F- Xe-F <-> F-Xe F-
In the case of XeF4, there are correspondingly 6 resonance structures with two F- atoms and two covalently bonded F. The bonding involves mainly the p orbitals on Xe, I don't think that hybridizing Xe will lead to any improvement.
 

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