Consider two 2p orbitals, one on each of two different atoms, oriented side-to-side, as in the…
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Question “Consider two 2p orbitals, one on each of two different atoms, oriented side-to-side, as in the…”
Consider two 2p orbitals, one on each of two different atoms, oriented side-to-side, as in the figure. Imagine bringing these nuclei together so that overlap occurs as shown in the figure. This overlap results in a system of molecular orbitals. (Scroll down to answer part “c)”.)
a) Below, construct an orbital interaction diagram for molecular orbital formation by dragging the images triat represent various orbital types (e.g., atomic, bonding, antibonding) into the relevant boxes.
b) Identify the number of nodes in each atomic and molecular orbital.
c) When two electrons occupy the bonding molecular orbital above, what type of bond results? Explain.
because the two electrons are in a σ bonding molecular orbital.
because only one bond forms.
because the bond is not cylindrically symmetrical about the internuclear axis.
because p orbitals can never form o bonds.
Answer
This problem can be solved using molecular orbital diagrams and nodes.
The molecular orbitals are the regions where an electron can be found within a molecule. The molecular energy diagram shows the energy profile diagram for molecular orbitals. Nodes are the regions where the probability density function decreases to zero.
If the atomic orbitals overlap, have similar energy and symmetry and can be combined linearly to create molecular orbitals.
Zero chance of finding an electron on the nodal plane.
Part of
The following are the atomic orbitals:
The bonding orbital can be represented as:
The antibonding orbital can be represented as:
The molecular orbital diagram can be represented as follows:
Part B
Calculate the number of nodes $math_tag_0
{n_t}\; = \;n - 1Substitute 2 for $math_tag_2 to get 2p orbital
\begin{array}{c}\\{n_t}\; = \;2 - 1\\\\ = 1\\\end{array}The following is the Node in 2 /p Bonding Orbital:
The Nodes orbital 2 p is as follows:
Part C
Two electrons can occupy the bonding molecular orbital and bond forms. Part a
The Molecular orbitals diagram can be represented as:
Part b
The number of nodes in the 2p orbital is 1.
2.p = 1.
Antibonding 2p orbital has 2.
Part c
The formation of $math_tag_4 occurs when two electrons are in the bonding molecular orbital.
Conclusion
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