Cyclopropyne

Cyclopropyne is an extremely strained, unstable, and reactive cycloalkyne with the chemical formula. As the smallest cycloalkyne, it features a three-carbon ring that includes a triple bond. The significant ring strain makes the compound challenging to produce and causes its high reactivity.

Theoretical studies

Although cyclopropyne is challenging to isolate, it has been extensively investigated through theoretical studies aimed at exploring its electronic structure, energy properties, and vibrational characteristics. A similar compound called silacyclopropyne, in which a silicon atom substitutes one of the carbon atoms in the ring, has been successfully synthesized and examined.