Species with data from:

Staley, S.W.; Norden, T.D., Structure and energetics of C₄H₄⁺ in the gas phase. Photoelectron spectrum of methylenecyclopropene, J. Am. Chem. Soc., 1989, 111, 445.

2 matching species were found.

For each matching species the following will be displayed:

• Chemical name
• Chemical formula
• Structure image (if available)

Click on the name to see more data.

1. Methylenecyclopropene (C₄H₄)
   
2. H2C=(cyc-C3H2)+ (C₄H₄⁺)