Indenone and cyclopentadienone energetics via mass spectrometry and computations: Are these species antiaromatic or "merely" nonaromatic?

Chemical Compounds

• Antiaromatic Compound 100%
• Thermodynamic Cycle 78%
• Proton Affinity 64%
• Ionization Potential 55%
• Enthalpy of Formation 52%
• Chemical Shift 44%
• Heat 40%
• Hydrogenation 40%
• Mass Spectrometry 36%
• Anion 32%
• Electron Particle 29%
• Ion 21%

Engineering & Materials Science

• Negative ions 74%
• Mass spectrometry 70%
• Electron affinity 53%
• Ionization potential 49%
• Chemical shift 46%
• Hydrogenation 34%
• Positive ions 34%
• Protons 33%
• Nuclear magnetic resonance 33%
• Electrons 27%
• Hot Temperature 26%
• Ions 25%
• Thermodynamics 23%

Physics & Astronomy

• mass spectroscopy 53%
• thermodynamic cycles 42%
• ring currents 35%
• heat of formation 35%
• electron affinity 31%
• affinity 30%
• hydrogenation 30%
• positive ions 29%
• ionization potentials 29%
• chemical equilibrium 29%
• negative ions 28%
• anions 25%
• nuclear magnetic resonance 21%
• heat 18%
• protons 17%
• nuclei 17%
• ions 12%
• electrons 11%