1. According to molecular orbital theory we may construct a ols bonding and antibonding molecular orbital from 1s atomic orbitals on center A and center B of H . (a) Sketch y and Iy? for the bonding and antibonding orbitals B A Ival?- A (b) write the Hamiltonian for this system (easiest in atomic units). FIGURE 9.2 Definition of the distances involved in the Hamiltonian operator for H; (Equation 9.4). (c) Write expressions for the bonding and antibonding energies in terms of the energy of a 1s atomic orbital, the coulombic integral and the exchange integral.

1. According to molecular orbital theory we may construct a ols bonding and antibonding molecular orbital from 1s atomic orbitals on center A and center B of H . (a) Sketch y and Iy? for the bonding and antibonding orbitals B A Ival?- A (b) write the Hamiltonian for this system (easiest in atomic units). FIGURE 9.2 Definition of the distances involved in the Hamiltonian operator for H; (Equation 9.4). (c) Write expressions for the bonding and antibonding energies in terms of the energy of a 1s atomic orbital, the coulombic integral and the exchange integral.