Question: Explain why each compound or ion should be aromatic, antiaromatic, or nonaromatic. (a) The cyclonona-tetraene cation (b) The cyclononatetraene anion (c) The [16]annulene dianion (d)

Explain why each compound or ion should be aromatic, antiaromatic, or nonaromatic.
(a)
Explain why each compound or ion should be aromatic, antiaromatic,

The cyclonona-tetraene cation
(b)

Explain why each compound or ion should be aromatic, antiaromatic,

The cyclononatetraene anion
(c)

Explain why each compound or ion should be aromatic, antiaromatic,

The [16]annulene dianion
(d)

Explain why each compound or ion should be aromatic, antiaromatic,

The [18]annulene dianion
(e)

Explain why each compound or ion should be aromatic, antiaromatic,

(f) The [20]annulene dication

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