General Chemistry 1 2. Which one of the atomic orbitals on F will overlap with the 1s atomic orbital on H atom? Please explain why other orbitals on F will not interact with the hydrogen's 1s orbital. 3. Illustrate with a picture how the H 1s atomic orbital and the F 2p atomic orbital can overlap to form bonding and antibonding molecular orbitals in the HF molecule. 4. What is the bond order for HF? Please show your calculations below. Is the HF molecule predicted to be paramagnetic or diamagnetic? Please explain. 3
General Chemistry 1 2. Which one of the atomic orbitals on F will overlap with the 1s atomic orbital on H atom? Please explain why other orbitals on F will not interact with the hydrogen's 1s orbital. 3. Illustrate with a picture how the H 1s atomic orbital and the F 2p atomic orbital can overlap to form bonding and antibonding molecular orbitals in the HF molecule. 4. What is the bond order for HF? Please show your calculations below. Is the HF molecule predicted to be paramagnetic or diamagnetic? Please explain. 3
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter10: Molecular Structure And Bonding Theories
Section: Chapter Questions
Problem 10.99QE: The molecular orbital diagram of NO shown in Figure 10.47 also applies to the following species....
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Question
How can we solve questions 1-5? Using molecular orbital
Transcribed Image Text:General Chemistry 1
2. Which one of the atomic orbitals on F will overlap with the 1s atomic orbital on H atom?
Please explain why other orbitals on F will not interact with the hydrogen's 1s orbital.
3. Illustrate with a picture how the H 1s atomic orbital and the F 2p atomic orbital can overlap
to form bonding and antibonding molecular orbitals in the HF molecule.
for the HF molecule?
4. What is the bond order for HF? Please show your calculations below.
5. Is the HF molecule predicted to be paramagnetic or diamagnetic? Please explain.
3
Transcribed Image Text:General Chemistry 1
S
Workshop 8: Molecular Orbital (MO) Energy Diagrams
Molecular Orbital Theory is a theory of bonding that helps us predict how 2 atomic orbitals can
combine to create 2 new orbitals called molecular orbitals (one bonding and one antibonding
MO's). In topic 12 we looked mostly at homonuclear molecules like H2, F2, and N2, but MO theory
can also be used to explain the bonding in heteronuclear molecules or ions like HF, CO, and NO.
In these molecules the atomic orbitals to be combined are at different energy levels. In the case
of heteronuclear molecules atomic orbitals that are close in energy will overlap- and these
orbitals do not necessarily have to be of the same shell nor do they have to be of the same type.
In this workshop we will discuss the MO diagram for the HF molecule. According to MO Theory,
to produce the bonding interaction of HF molecule the one occupied atomic orbital of H (1s) will
be mixed with one of the occupied atomic orbitals of F that are closer in energy to the 1s orbital
of H than any other occupied orbitals of F.
1. The MO diagram for the HF molecule below will include only valence electrons of H and F.
Indicate on the diagram below atomic orbitals of the H and F atoms as well as the bonding,
antibonding, and nonbonding orbitals of the HF molecule (i.e. s, p, σ, π and * where
necessary). Add electrons to the diagram.
While we have not taught you about non-bonding orbitals you should be able to use your
intuition to predict where these are on the diagram below. Please mark non-bonding orbitals
in the diagram.
Energy
HF
F
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