KnowraCyclobutadieneLinked fromLinked fromThe 7 pages that link to Cyclobutadiene, each with the reason it gives.All 7Broader topic 3Compared with 4AromaticityBroader topic: Its electronic instability is a classic case associated with antiaromaticity.Hückel's ruleBroader topic: Its four-electron count illustrates why the 4n pattern is unfavorable in a planar conjugated ring.AntiaromaticityBroader topic: It is the textbook 4π-electron example, stabilized structurally by bond alternation.