Consider the Coulomb (J) and resonance integrals (K) in H2+:

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Presentation transcript:

Consider the Coulomb (J) and resonance integrals (K) in H2+: What is their contribution to bonding in H2+? They both contribute about equally and favorably. By and large, only K contributes favorably. By and large, only J contributes favorably. None of them contribute favorably.

from McQuarrie & Simon “Physical Chemistry” Consider the Coulomb (J) and resonance integrals (K) in H2+: What is their contribution to bonding in H2+? They both contribute about equally and favorably. By and large, only K contributes favorably. By and large, only J contributes favorably. None of them contribute favorably. from McQuarrie & Simon “Physical Chemistry”

What kind of orbital is this? (A) g u* g* (D) u (E) g* side view view along molecular axis

What kind of orbital is this? (A) g no nodal plane containing the bond ... ; even inversion symmetry ... g no nodal plane between nuclei ... bonding; u* g* (D) u (E) g* side view view along molecular axis

What kind of orbital is this? (A) g u* g* (D) u (E) g* side view view along molecular axis

What kind of orbital is this? (A) g u* no nodal plane containing the bond ... ; odd inversion symmetry ... u nodal plane between nuclei ... antibonding; g* (D) u (E) g* side view view along molecular axis

What kind of orbital is this? (A) g u* g* (D) u (E) g* side view view along molecular axis

What kind of orbital is this? (A) g u* g* one nodal plane containing the bond ... ; even inversion symmetry ... g nodal plane between nuclei ... antibonding; (D) u (E) g* side view view along molecular axis

What kind of orbital is this? (A) g u* g* (D) u (E) g* side view view along molecular axis

What kind of orbital is this? (A) g u* g* (D) u one nodal plane containing the bond ... ; odd inversion symmetry ... u no nodal plane between nuclei ... bonding; (E) g* side view view along molecular axis