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TetrahedraneTetrahedrane is a hypothetical hydrocarbon with chemical formula and a tetrahedral structure. Extreme angle strain (carbon bond angles deviate considerable from tetrahedral bond angle of 109.5) prevents this molecule to exist. In 1978 Maier prepared a stable tetrahedrane with 4 tert-butyl substituents. These substituents are very bulky en completely envelope the tetrahedrane core. Any bond breaking in the core is prevented because it forces the substituents closer together (corset effect) resulting in Van der Waals strain. Tetrahedrane is one of the possible platonic hydrocarbons references Maier, Pfriem, Schāfer, Matusch, Angewandte Chemie, Int. Ed. Engl. 17, 520 (1978)
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