In NUMBER@1 PERSON@1 published a paper in MISC@1 -LRB- for he was then still in LOCATION@1 -RRB- suggesting that the structure contained a six-membered ring of carbon atoms with alternating single and double bonds .

In NUMBER@1 PERSON@1 published a paper in MISC@1 suggesting that the structure contained a six-membered ring of carbon atoms with alternating single and double bonds .
