- #1
melissajohn
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how do you draw the energy level diagrams for LiF molecule? i know how to draw an energy level digram for Li but how do you do it for a molecule?
Drawing Energy Level Diagrams for LiF Molecule: How To?
- Thread starter melissajohn
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- Diagram Energy Energy level
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Discussion Overview
The discussion revolves around how to draw energy level diagrams for the lithium fluoride (LiF) molecule, with participants exploring the differences between atomic and molecular diagrams. The scope includes homework-related inquiries and conceptual clarifications regarding molecular orbital theory.
Discussion Character
- Homework-related, Conceptual clarification, Technical explanation
Main Points Raised
- One participant asks how to draw energy level diagrams for the LiF molecule, indicating familiarity with lithium but not with molecular representations.
- Another participant suggests that the inquiry is a homework question and advises reading the text for specific guidance.
- There are references to the stability of p electrons in oxygen compared to the 2s orbital of beryllium, although this seems to diverge from the main focus on LiF.
- Participants discuss the implications of bond order, with one noting that a bond order of zero indicates no bonds in beryllium oxide (BeO) and questioning the placement of electrons in antibonding orbitals.
- One participant asserts that LiF does not have electrons in antibonding orbitals, while another expresses uncertainty about their own diagram's accuracy.
Areas of Agreement / Disagreement
Participants do not reach a consensus on the correct approach to drawing the energy level diagram for LiF, and there are competing views regarding the placement of electrons in molecular orbitals.
Contextual Notes
There are unresolved questions about the specific orbitals involved in the bonding of LiF and potential misconceptions regarding molecular orbital configurations.
- #2
GCT
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melissajohn said:
Are you in Inorganic Chemistry?
- #3
melissajohn
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yes i am... can you help?
- #4
GCT
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Then this is a homework question ... you need to read your text and ask specific questions.
- #5
GCT
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Where are all of the other 2p orbitals for Oxygen? What is the particular 2p orbital that would have the correct symmetry to overlap with the 2s orbital of Be? Where are all of the other valence electrons for Oxygen?
The diagram is partially correct , the p electrons of O are more stable than the 2s of Be.
The diagram is partially correct , the p electrons of O are more stable than the 2s of Be.
- #6
melissajohn
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ok i tried to fix it... i really hope this is right. please let me know if i am doing it right now. thanks.
- #7
- #8
GCT
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melissajohn said:
You got more electrons in the MO than in the AO , with the current setup BeO has a bond order of zero.
- #9
melissajohn
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ok... i will delete some electrons from the MO.
- #10
GCT
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Again , the bond order is zero , this means that BeO has no bonds ... why are you putting the electrons in the antibonding orbitals?
- #11
GCT
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LiF does not have electrons in antibonding orbitals.
http://www.sparknotes.com/chemistry/bonding/molecularorbital/section1.html
http://www.sparknotes.com/chemistry/bonding/molecularorbital/section1.html
- #12
melissajohn
- 20
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right... i don't think i put electrons in the antiboding orbitals for LiF
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