On the structure below, draw in the p-orbitals to show how they are oriented and overlap. Draw the MO diagram for 1,3- butadiene and show which molecular orbitals the electrons occupy. Label the HOMO and LUM0
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Q: The lowest unoccupied molecular orbital (LUMO) of 1,3-butadiene is best represented by which of the…
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Q: Draw a molecular orbital picture for the LUMO of 1,3-Butadiene
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Q: How many MOs does 1,3,5,7-octatetraene have?
A: Please find below the structure of 1,3,5,7-octatetraene
Q: The pentadienyl radical, H2C“CH¬CH“CH¬CH2#, has its unpaired electron delocalized over three carbon…
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- How would you develop a molecular orbital for a structure like buta-2-diene that has an anion on the first carbon and a cation on the fourth carbon? Also, how would MO look like for 2-dimethyl-1,3-pentadiene?Is the molecular orbital diagram of 1,3-butadiene the same as cyclopenta-1,3-diene? If so how come? Doesn't the latter have 5 p orbitals or will it technically only have 4?Answer the following questions for the molecular orbitals (MOs) of 1,3,5,7-octatetraene: a. How many MOs does the compound have? b. Which are the bonding MOs, and which are the antibonding MOs? c. Which MOs are symmetric, and which are antisymmetric? d. Which MO is the HOMO and which is the LUMO in the ground state? e. Which MO is the HOMO and which is the LUMO in the excited state? f. What is the relationship between HOMO and LUMO and symmetric and antisymmetric orbitals? g. How many nodes does the highest-energy MO of 1,3,5,7-octatetraene have between the nuclei?
- What is the best way to draw a molecular orbital diagram for 1,3-cyclopentadiene, identifying the Lowest unoccupied molecular orbital and the highest occupied molecular orbital?What is the total number of nodes in the c3 and c4 MOs of 1,3-butadiene?Draw a molecular orbital picture for the LUMO of 1,3-Butadiene
- Which one of the following represents the HOMO of 1,3-butadiene in the ground State?Construct an MO energy diagram for the cycloheptatrienyl cation and describe its ground-state electron configuration1/ Show how the participating p orbitals interact to form the highest energy pi molecular orbital of benzene. 2/ Use the polygon rule to draw the MO energy diagram of the cyclononatetraenyl anion. Assuming planarity, would this ion be aromatic or antiaromatic?
- Answer the following questions for the MOs of 1,3,5-hexatriene: a. Which are bonding MOs, and which are antibonding MOs? b. Which MOs are the HOMO and the LUMO in the ground state? c. Which MOs are the HOMO and the LUMO in the excited state? d. Which MOs are symmetric, and which are antisymmetric? e. What is the relationship between HOMO and LUMO and symmetric and antisymmetric MOs?Answer the following questions for the MOs of 1,3-butadiene: a. Which are p bonding MOs, and which are p* antibonding MOs? b. Which MOs are symmetric, and which are antisymmetric? c. Which MO is the HOMO and which is the LUMO in the ground state? d. Which MO is the HOMO and which is the LUMO in the excited state? e. What is the relationship between the HOMO and the LUMO and symmetric and antisymmetric orbitals?The pentadienyl radical, H2C“CH¬CH“CH¬CH2#, has its unpaired electron delocalized over three carbon atoms.(a) Use resonance forms to show which three carbon atoms bear the unpaired electron.(b) How many MOs are there in the molecular orbital picture of the pentadienyl radical?(c) How many nodes are there in the lowest-energy MO of the pentadienyl system? How many in the highest-energy MO?(d) Draw the MOs of the pentadienyl system in order of increasing energy. (continued)762 CHAPTER 15 Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy(e) Show how many electrons are in each MO for the pentadienyl radical (ground state).(f) Show how your molecular orbital picture agrees with the resonance picture showing delocalization of the unpairedelectron onto three carbon atoms.(g) Remove the highest-energy electron from the pentadienyl radical to give the pentadienyl cation. Which carbon atomsshare the positive charge? Does this picture agree with the resonance picture?(h) Add an…
