In the molecular orbital (MO) scheme for frontier orbitals of benzene, answer the following: a) how many of the carbons in benzene are sp2/p hybridized? b) how many p-n electrons does this system have? c) how many T,7* MOs can be constructed from the carbon p-orbitals? 2.

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter3: Electron Orbitals
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2.
In the molecular orbital (MO) scheme for frontier orbitals of benzene, answer the following:
a) how many of the carbons in benzene are sp²/p hybridized?
b) how many p-n electrons does this system have?
c) how many T,7* MOs can be constructed from the carbon p-orbitals?
d) labeling these yn (n= 1 to ....) increasing in energy, how many vertical nodes do the following MOs
have ?
Y2,43
¥4,Y5
e) on the hexagonal skeleton to right, draw the molecular orbital for y3, or y4.
Are these MOs bonding, non-bonding or antibonding? Clearly show/tell why.
f) in benzene, what orbital(s) is/are the HOMO? yn =
g) what is the (value of the) aromatic stabilization energy for benzene?
h) is benzene more or less stable than 1,3,5-cyclohexatriene? more less
i) in two words, what is the structure of benzene?
the LUMO? yn =
kJ/mol
(circle one)
Transcribed Image Text:2. In the molecular orbital (MO) scheme for frontier orbitals of benzene, answer the following: a) how many of the carbons in benzene are sp²/p hybridized? b) how many p-n electrons does this system have? c) how many T,7* MOs can be constructed from the carbon p-orbitals? d) labeling these yn (n= 1 to ....) increasing in energy, how many vertical nodes do the following MOs have ? Y2,43 ¥4,Y5 e) on the hexagonal skeleton to right, draw the molecular orbital for y3, or y4. Are these MOs bonding, non-bonding or antibonding? Clearly show/tell why. f) in benzene, what orbital(s) is/are the HOMO? yn = g) what is the (value of the) aromatic stabilization energy for benzene? h) is benzene more or less stable than 1,3,5-cyclohexatriene? more less i) in two words, what is the structure of benzene? the LUMO? yn = kJ/mol (circle one)
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