Anions of hydrocarbons are rare, and dianions of hydrocarbons are extremely rare. The fo...

Anions of hydrocarbons are rare, and dianions of hydrocarbons are extremely rare. The following hydrocarbon reacts with two equivalents of butyllithium to form a dianion of formula [C₈H₆]^2-_.Propose a structure for this dianion, and suggest why it forms so readily.