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Among conjugated polyenes (molecules with alternating
carbon-carbon double and single bonds) why
are those that are longer able to absorb longer wavelengths
of light?
A. Larger molecular orbitals have a lower ground
state.
B. A longer wavelength is better able to interact
with a longer molecular orbital.
C. The larger number of molecular orbitals allows
for smaller energy transitions.
D. Larger molecular orbitals can absorb more
energy.
What basic concept are they testing here? C-C will be longer,but here is another Q. The Sp2 orbitals are all at the same energy level, so the C-C will be at the same energy level as C=C except that its a little longer, is that correct?
carbon-carbon double and single bonds) why
are those that are longer able to absorb longer wavelengths
of light?
A. Larger molecular orbitals have a lower ground
state.
B. A longer wavelength is better able to interact
with a longer molecular orbital.
C. The larger number of molecular orbitals allows
for smaller energy transitions.
D. Larger molecular orbitals can absorb more
energy.
What basic concept are they testing here? C-C will be longer,but here is another Q. The Sp2 orbitals are all at the same energy level, so the C-C will be at the same energy level as C=C except that its a little longer, is that correct?