Species with data from:

Gunion, R.F.; Karney, W.; Wenthold, P.G.; Borden, W.T.; Lineberger, W.C., Ultraviolet Photoelectron Spectroscopy of Some C7H7- Isomers: Quadricyclanide, Norbornadienide, Cycloheptatrienide, and 1,6-Heptadiynide, J. Am. Chem. Soc., 1996, 118, 21, 5074, https://doi.org/10.1021/ja954026f .

9 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. Tetracyclo[3.2.0.0(2,7).0(4,6)]heptane (C₇H₈)
   
2. 1,6-Heptadiyne (C₇H₈)
   
3. Cycloheptatrienyl radical (C₇H₇)
   
4. Hydrogen cation (H⁺)
   
5. quadricyclan-2-ide anion (C₇H₇^-)
6. quadricyclan-1-ide anion (C₇H₇^-)
7. HCðCCH2CH2CH=C=CH anion (C₇H₇^-)
8. HCðCCH2CH2CH2CðC anion (C₇H₇^-)
9. norbornadienide anion (C₇H₇^-)

© 2026 by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved.

Copyright for NIST Standard Reference Data is governed by the Standard Reference Data Act.