Question

9. Answer the questions below for 1.3.5-cycloheptatriene. a. How many ratomie orbitals are in the conjugated system? b. How many molecular orbitals describe the conjugated system? c. How many molecular orbitals are bonding molecular orbitals? d. How many molecular orbitals are anti-bonding molecular orbitals? e. Which molecular orbitals are filled with electrons? f. If this molecule were to absorb a photon of UV light an electron would move between which two molecular orbitals (be specific)?

Answer 1

znans 1.3.5 11oratorrene a) 1.3.5 Hexa torrene having 6 - p-atomic ogbitals are in conjugated system. - Molecular orbitals are present in the above 1.3.5 Hematriene molecule none C) 1-3.5 Hexatrene Having 3- Bonding Molecular orbitals these are n " Y2 P I d) 1.3.5 Hexatriene having bonding molecular onbirals 3 Anti there are are 4* 43 4* Higher energy orbitals

Bondina orbitalt are @ - 4, 42 Ya filled with Ronding onsitals are electrons - 4* Anti bonding Auch bonding Molecular orbitals -f of of rf af of Bonding molecular orbital f O.V uf wf fans of light radiation 14 Y2 1 4 The Ground state electrons Movy between enected 4 and 4* molecules orbitalt A