Select each true statement concerning the predicted photoelectron spectrum of Cl

Question

Select each true statement concerning the predicted photoelectron spectrum of Cl2. Assume that the source radiation is energetic enough to remove electrons from all valence molecular orbitals. Please explain!

Select each true statement concerning the predicted photoelectron spectrum of Clo. Assume that the source radiation is energetic enough to remove electrons from all valence molecular orbitals. The band corresponding to the HOMO has a binding energy that is less than the first ionization energy of atomic chlorine. Only one of the observed bands shows fine structure There are only two bands, one corresponding to the bonding electrons and one corresponding to the lone pair electrons There are five separate bands. The band corresponding to the HOMO shows fine structure. The band corresponding to the LUMO orbital shows fine structure.

Explanation / Answer

Select each true statement concerning the predicted photoelectron spectrum of Cl2. Assume that the source radiation is energetic enough to remove electrons from all valence molecular orbitals.

The band corresponding to the homo has a binding energy that is less than the its first ionization energy-----------False

According to Koopmans' theorem the first ionization energy of a molecular system is equal to the negative of the orbital energy of the highest occupied molecular orbital (HOMO).

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There are only two bands one corresponding to the bonding electrons and on corresponding to the lone pair electrons----------True

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There are three possible Cl2 dissociation channels comparing to mixes of the two Cl particles in their ground Cl(2P3/2) and turn energized Cl*(2P1/2) states. The C and A states connect with the

ground state chlorine molecules in the adiabatic guess, though the B state gives Cl1Cl* upon separation. Two sorts of nonadiabatic moves can impact the photodissociation handle: a heterogeneous move

~DV51! between C 1P1u and B 3P01u states which cross

each other on their approach to separation, and homogeneous moves ~DV50! between the 1u valence states. An arrangement of exploratory reviews has been completed to decide the separation channels and part of nonadiabatic impacts in the Cl2 photodissociation

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