What are the most efficient basis set strategies for correlated wave function calculations of reaction energies and barrier heights

Chemical Compounds

• Wave Function 100%
• Electronic State 62%
• Coupled Cluster Theory 57%
• Møller-Plesset Perturbation Theory 56%
• Electron Correlation 50%
• CCSD 46%
• Energy 40%
• Valence 37%
• Flexibility 34%
• Polarization 32%

Physics & Astronomy

• wave functions 66%
• estimating 50%
• electronic structure 42%
• excitation 27%
• flexibility 25%
• energy 25%
• electrons 24%
• perturbation theory 23%
• valence 20%
• requirements 19%
• polarization 15%