4. The molecular orbital (MO) energy diagram for cyclopentadiene (compound pictured right) shows four distinct pi molecular orbitals at different energy levels. For this question, you do not need to draw all four pi molecular orbitals. Draw the orbital picture of two MOs - the HOMO (highest occupied MO) and the LUMO (lowest unoccupied MO). Label each clearly as HOMO and LUMO, label any "nodes," and shade the orbitals to show in-phase or out-of-phase. mar wos besovel.od pluow yswrieg loir.bns eute19gmar Vewrlis

4. The molecular orbital (MO) energy diagram for cyclopentadiene (compound pictured right) shows four distinct pi molecular orbitals at different energy levels. For this question, you do not need to draw all four pi molecular orbitals. Draw the orbital picture of two MOs - the HOMO (highest occupied MO) and the LUMO (lowest unoccupied MO). Label each clearly as HOMO and LUMO, label any "nodes," and shade the orbitals to show in-phase or out-of-phase. mar wos besovel.od pluow yswrieg loir.bns eute19gmar Vewrlis

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter17: Conjugation And Molecular Orbital (mo) Theory

Section: Chapter Questions

Problem 19CTQ

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Similar questions

Let us construct the molecular orbital diagram of ethylene (in pieces). a. First, construct the MO diagram of linear carbene (CH2). Draw pictures of all 6 orbitals b. Now bend the carbene to a bond angle of about 120°. How does this change your MO diagram? Draw pictures of all 6 orbitals. c. Now bring two of these carbene molecules together to make ethylene. Draw pictures of all 12 orbitals.
Draw one all-bonding MO, thena pair of degenerate MOs, and then a final pair of degenerate MOs. Draw the energydiagram, fill in the electrons, and confirm the electronic configurations of the cyclopentadienyl cation and anion
Which MOs are the HOMO and the LUMO in the ground state? for the MOs of 1,3,5-hexatriene
Draw an mo diagram for the valence electrons in F2. What is the bond order many sigma and pi bonds are there? What is the HOMO(Highest Occupied Molecular Orbital) and LUMO(Lowest Unoccupied Molecular Orbital)? What is the magnetism of the species?
what is the molecular orbital configurations, number of unpaired electrons, and bond order for B2? Using the molecular orbital diagram for the molecule in the previous question, what is the HOMO and LUMO for that molecule?
Which of the following represents the lowest energy pi molecular orbital for cyclopentadiene?
The orbital potential energies for the 4s and 4p of Br are -18.65 ev and -12.49 ev, respectively. Recall that the H 1s is -13.61 ev. The MO diagrams for HBr is not exactly the same as HF. Draw the MO diagram for HBr, including energy levels, each orbitals shape, each orbitals character (meaning what atomic orbitals contribute to each M.O. and how much), symmetry labels indicate the HOMO and LUMO, the bond order (show your work), whether the molecule is paramagnetic or diamagnetic. Compare and contrast the MO diagrams of HF and HBr.
Predict whether the MO diagram for S2 would show s-p mixing or not.
Molecule C shown below contains a group called an allene. An allene has the structure of one central carbon being doubly bonded to two other carbons (C=C=C). Please draw out all of the p-orbitals that are involved in the pi-system for molecule C. b) The p-orbital on carbon 1 in molecule C are not in conjugation with the p-orbital on carbon 2 (ie the p- orbitals are not pointing in the same direction and there is no overlap). Why does this happen?
Which MOs are the HOMO and the LUMO in the excited state?
In at 6 p-orbital system with 6 p-π electrons, which MO is the HOMO? Is this MO symmetric or asymmetric? How many vertical nodes does it have? Circle a choice for each part.
Answer the following question for 1,3,5- hexatriene, the conjugated triene containing six carbons. Which MOs are the frontier molecular orbitals?