Question: Construct an MO diagram for trigonal-planar BH3 by analogy with the MOs for trigonal-planar NH 3 in Figure 5.26. Use this diagram to determine the

Construct an MO diagram for trigonal-planar BH3 by analogy with the MOs for trigonal-planar NH₃ in Figure 5.26. Use this diagram to determine the degeneracy and orbital character of the HOMO and the LUMO.

Figure 5.26

energy 2e' 2a, 1a" 1e' 8-0-0 1a, N2p-Ho* N 2s-Ho* 11 N 2p nonbonding 14 14 N2p - H 11 N 2s - Ho 11 11 11 2e 3a 2a 1a 1e goo odo

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