Which of the following compounds would you expect to be antiaromatic?
(i) cyclooctatetraene
(ii) 1,3-cyclooctadiene
(iii) cyclooctatetraenyl dianion
(iv) 1-ethenylcyclooctatetraene
(v) 1,3,5,7-octatetraene
Select one:
a. i only
b. i, ii, iv and v only
c. iii only
d. i and iv only
e. all the above
From my working I found i, ii, iv, and v to be non aromatic and iii to be aromatic. Is non aromatic the same as antiaromatic?
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