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- Solve for the delocalization and overall electronic energy for C4H4 (considering a single p orbital on each carbon) ? How does this compare to benzene?MW is 98 1HNMR: 1.7 quintet, 1.8 quintet, 2.3 triplet What molecule is this?4. (a) Use the simple one-electron molecular orbital method, including overlap, to calculate the energies of the molecular orbitals of the hydrogen molecule (H₂) in terms of a, ß and S? (b) Calculate & given that a = -13.6 eV, that S = 0.6, and that the lowest UV absorption energy is 12 eV. (c) Determine the ionisation energy of the bonding molecular orbital in H₂ ? [6 marks]