Ochem W.1 - Molecular Orbital Theory Notes

A collection of flashcards focusing on molecular orbital theory concepts, including bond order calculation, HOMO and LUMO definitions, and orbital hybridization.

What is the formula for calculating bond order in molecular orbital theory?

(bonding electrons - anti-bonding electrons) / 2

What is the bond order for H2 if it has 2 bonding electrons and 0 anti-bonding electrons?

1

What does HOMO stand for in molecular orbital theory?

Highest Occupied Molecular Orbital

What does LUMO stand for in molecular orbital theory?

Lowest Unoccupied Molecular Orbital

How does LUMO participate during nucleophilic attack?

LUMO receives electrons during nucleophilic attack.

What happens when there is an attack on the anti-bonding orbital?

It breaks the bond due to destructive interference.

What role do electrons from HOMO play in chemical reactivity?

Electrons from HOMO are used for attacking other molecules.

What do sp3 orbitals form and with what other orbitals?

sp3 orbitals form sigma bonds with other sp3 orbitals.

How do 2s and 2p orbitals combine for bonding?

They combine in phase for bonding.