Question

Need molecular orbitals of 1,3-butadiene

The molecular orbitals of 1, 3-butadiene are given below. Fill in the pi electrons expected in the ground state. Click on the blue box to toggle through 0, 1, or 2 electrons on each level. Select the which pi molecular orbital is the HOMO of the ground state pi_1 pi_2 pi_3 pi_4 LUMO of the ground state pi_1 pi_2 pi_3 pi_4

Answer 1

1,3-butadiene has two pi bonds which corresponds to four pi electrons.

HOMO is Highest Occupied Molecular Orbital

LUMO is Lowest Unoccupied Molecular Orbital

Sapling Learning Март The molecular orbitals of 1,3-butadiene are given below. 1) Fill in the pi electrons expected in the ground state, Click on the blue box to toggle through 0, 1, or 2 electrons on each level. 2) Select the which π molecular orbital is the HOMO of the ground state LUMO of the ground state TT4 1332 2 0 0 TT1 Ground state -k- O Previous ⓧ Give Up & View Solution Check Answer 0 Next -el Exit

Answer 2

https://youtu.be/k3DyuXyeaFU

Answer 3

1,3-butadiene has two pi bonds which corresponds to four pi electrons.

HOMO is Highest Occupied Molecular Orbital

LUMO is Lowest Unoccupied Molecular Orbital

1)
An electron pair is present in $\pi _1$ orbital
An electron pair is present in $\pi _2$ orbital
$\pi _3$ and $\pi _4$ orbitals are empty
2) HOMO is $\pi _2$
LUMO is $\pi _3$