Skip to main content

My Courses

AI Tools Channels Home

16. Conjugated Systems

Molecular Orbital Theory

16. Conjugated Systems

Molecular Orbital Theory

Guided videos.

Learn with Johnny

Go to the course

Review of Atomic Orbitals

Review of Atomic Orbitals

Johnny Betancourt

Review of Molecular Orbitals

Review of Molecular Orbitals

Johnny Betancourt

Practice this topic

Multiple Choice
What is a node in an atomic orbital?
388
views
Multiple Choice
Which of the following represents an out-of-phase overlap of two atomic orbitals?
306
views
Multiple Choice
What molecular orbital(s) result from the overlap of 2 sp³-hybridized orbitals?
312
views
Textbook Question
Why are conjugated molecules like the product of the ninhydrin reaction brightly colored?
290
views
Textbook Question
(a) Draw the molecular orbitals for the cyclopropenyl case.
<IMAGE>
(Because there are three p orbitals, there must be three MOs:
one all-bonding MO and one degenerate pair of MOs.)
(b) Draw an energy diagram for the cyclopropenyl MOs.
(The polygon rule is helpful.)
Label each MO as bonding, nonbonding, or antibonding,
and add the nonbonding line. Notice that it goes through
the approximate average of the MOs.
(c) Add electrons to your energy diagram to show
the configuration of the cyclopropenyl cation and
the cyclopropenyl anion. Which is aromatic and
which is antiaromatic?
243
views
Textbook Question
Which of the following would you expect to be a more stable molecular orbital? Why?
vs.
422
views
Textbook Question
a. For conjugated systems with two, three, four, five, six, and seven conjugated p-bonds, construct quick MOs (just draw the lobes at the ends of the conjugated system as they are drawn on pages 1220 and 1221) to show whether the HOMO is symmetric or antisymmetric. b. Using these drawings, convince yourself that the Woodward–Hoffmann rules in Table 28.1 are valid.
741
views

Show all questions