Question

For each of the species below, identify any cyclic conjugated system, then: A. Determine the number of electrons in a system of cyclic conjugation (zero if no cyclic conjugation). B. Specify whether the species is "a-aromatic, "aa-anti-aromatic, or "na"-non-aromatic (neither aromatic nor anti- aromatic Presume rings to be planar unless structure obviously prevents planarity. If there is more than one conjugated ring, count electrons in the largest.) A.Electrons in a cyclic conjugated system. B.The compound is (a, aa, or na) 2. A.Electrons in a cyclic conjugated systenm B.The compound is (a, aa, or na)

Answer 1

1 A→ Elechon in cyclic cornJugatad compound it axomahc 2 8 AElkchons in csdlic Syith

A →Electron s in(9cLic syitem 8- (na) 2.

4 Anh'aramah'c compoumy 2- Electson in a cyclic sqstem lo азот abc compou