Homework Answers
The given carbocation is tropylium anion. It has 8 pi electrons and the structure is planar. Thus, the tropylium carbocation is antiaromatic in nature. Since it has 8 pi electrons, it will fill into four half filled molecular orbital.
Thus , option 2 is right.
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Which of the following statements is TRUE about the cycloheptatrienyl anion? It is aromatic and has...
Question 27 (4 points) Which of the following statements is TRUE about the cycloheptatrienyl anion? It...
Question 27 (4 points) Which of the following statements is TRUE about the cycloheptatrienyl anion? It is aromatic and has three filled bonding molecular orbitals It is anti-aromatic and has two half-filled molecular orbitals It is anti-aromatic and has four half-filled molecular orbitals It is aromatic and has three empty molecular orbitals
What is the major product of this reaction? CH, H307. Hy НО. HO о O HO...
What is the major product of this reaction? CH, H307. Hy НО. HO о O HO Question 40 (4 points) Which of the following statements is TRUE about the cycloheptatrienyl cation? It is anti-aromatic and has two half-filled molecular orbitals It is anti-aromatic and has one half-filled molecular orbital It is aromatic and has four empty molecular orbitals It is aromatic and has four filled bonding molecular orbitals
Which one of the following compounds would exist in an ENOL form to the greatest extent?...
Which one of the following compounds would exist in an ENOL form to the greatest extent? . H H H Which of the following statements is TRUE about the cyclopentadienyl cation? It is aromatic and has three filled bonding molecular orbitals It is aromatic and has two empty molecular orbitals It is anti-aromatic and has two half-filled molecular orbitals It is anti-aromatic and has one half-filled molecular orbital Which one is the major product of the following reaction sequence? NH2...
Which is the correct synthesis of 6-methyl-3-heptanone from 3-methyl-1-butene? Acid and water, then Cr03/H2SO4, then CH3CH2CH2...
Which is the correct synthesis of 6-methyl-3-heptanone from 3-methyl-1-butene? Acid and water, then Cr03/H2SO4, then CH3CH2CH2 MgBr, then acid, then CrOz/H2SO4 Acid and water, then C+03/H2S04, then CH3CH2CH2MgBr, then acid HB:/ROOR, then Mg/ether, then propanal, then acid, then CrO3/H2SO4 HBr, then Mg/ether, then propanal, then acid, then CrOz/H2SO4 Question 21 (4 points) Which of the following statements is true? Aromatic compounds release more energy per pi bond upon saturation than simple alkenes. Aromatic compounds have longer C-C bonds than alkanes....
6. Draw both the 1,2- and the 1,4-addition products of the following substrate. Circle the kinetic...
6. Draw both the 1,2- and the 1,4-addition products of the following substrate. Circle the kinetic product (2 pts.). HBE (1 ) 7. Construct an inscribed polygon in the circle provided to illustrate the molecular orbitals for the cycloheptatrienyl anion. Illustrate the relative energies of all the molecular orbitals, label bonding and anti-bonding and assuming this species is planar, assess whether it is non-aromatic, aromatic, or anti-aromatic. Explain why (2 pts.).
Which of the following statements concerning molecular orbital theory is/are true? 1. Bonding orbitals are equal in ener...
Which of the following statements concerning molecular orbital theory is/are true? 1. Bonding orbitals are equal in energy to their corresponding anti-bonding orbitals. 2. Adding electrons to anti-bonding orbitals destabilizes molecules. 3. Unlike when we fill atomic orbitals, we DON'T use Hund's Rule to fill molecular orbitals. Group of answer choices
Which of the following statements are true and which are false? A sigma molecular orbital (as...
Which of the following statements are true and which are false? A sigma molecular orbital (as compared to a pi molecular orbital)...1.)may result from overlap of two sp2 orbitals.2.)may be bonding or anti-bonding.3.)does not have a single lobe of electron density.4.)may have delocalized electrons in conjugated compounds.5.)may result from an atomic p orbital and a sp2 orbital.6.)may not result from two atomic p-orbitals.
Question 4 Determine if each of the statements is True or False about bonding molecular orbitals...
Question 4 Determine if each of the statements is True or False about bonding molecular orbitals and antibonding molecular orbitals. 1) Every electron that enters a bonding molecular orbital has lower energy and stabilizes the molecule. Select 2) Bonding molecular orbitals are formed by the overlap of two out-of-phase atomic orbitals. [Select] 3) An antibonding molecular orbital has a lower electron density in the internuclear region than that of the atomic orbitals. [ Select] 4) Two atomic orbitals are combined...
Which of the following statements are true and which are false? A sigma molecular orbital may
Which of the following statements are true and which are false? A sigma molecular orbital may not have a single lobe of electron density. be bonding or antibonding. result from overlap of two sp2 orbitals. have delocalized electrons in conjugated compounds. not result from two atomic p orbitals.
Which of the following statements are true and which are false? A sigma molecular orbital may...
Which of the following statements are true and which are false? A sigma molecular orbital may True False be bonding or antibonding. True False not result from two atomic p orbitals. True False result from an atomic p orbital and a sp2 orbital. True False not have a single lobe of electron density. True False have delocalized electrons in conjugated compounds.
Question 27 (4 points) Which of the following statements is TRUE about the cycloheptatrienyl anion? It is aromatic and has three filled bonding molecular orbitals It is anti-aromatic and has two half-filled molecular orbitals It is anti-aromatic and has four half-filled molecular orbitals It is aromatic and has three empty molecular orbitals
What is the major product of this reaction? CH, H307. Hy НО. HO о O HO Question 40 (4 points) Which of the following statements is TRUE about the cycloheptatrienyl cation? It is anti-aromatic and has two half-filled molecular orbitals It is anti-aromatic and has one half-filled molecular orbital It is aromatic and has four empty molecular orbitals It is aromatic and has four filled bonding molecular orbitals
Which one of the following compounds would exist in an ENOL form to the greatest extent? . H H H Which of the following statements is TRUE about the cyclopentadienyl cation? It is aromatic and has three filled bonding molecular orbitals It is aromatic and has two empty molecular orbitals It is anti-aromatic and has two half-filled molecular orbitals It is anti-aromatic and has one half-filled molecular orbital Which one is the major product of the following reaction sequence? NH2...
Which is the correct synthesis of 6-methyl-3-heptanone from 3-methyl-1-butene? Acid and water, then Cr03/H2SO4, then CH3CH2CH2 MgBr, then acid, then CrOz/H2SO4 Acid and water, then C+03/H2S04, then CH3CH2CH2MgBr, then acid HB:/ROOR, then Mg/ether, then propanal, then acid, then CrO3/H2SO4 HBr, then Mg/ether, then propanal, then acid, then CrOz/H2SO4 Question 21 (4 points) Which of the following statements is true? Aromatic compounds release more energy per pi bond upon saturation than simple alkenes. Aromatic compounds have longer C-C bonds than alkanes....
6. Draw both the 1,2- and the 1,4-addition products of the following substrate. Circle the kinetic product (2 pts.). HBE (1 ) 7. Construct an inscribed polygon in the circle provided to illustrate the molecular orbitals for the cycloheptatrienyl anion. Illustrate the relative energies of all the molecular orbitals, label bonding and anti-bonding and assuming this species is planar, assess whether it is non-aromatic, aromatic, or anti-aromatic. Explain why (2 pts.).
Question 4 Determine if each of the statements is True or False about bonding molecular orbitals and antibonding molecular orbitals. 1) Every electron that enters a bonding molecular orbital has lower energy and stabilizes the molecule. Select 2) Bonding molecular orbitals are formed by the overlap of two out-of-phase atomic orbitals. [Select] 3) An antibonding molecular orbital has a lower electron density in the internuclear region than that of the atomic orbitals. [ Select] 4) Two atomic orbitals are combined...
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