Keywords photocatalysis selective methane oxidation free radicals cooperativity carbon-hydrogen bond activation and oxidation Get full text access Log in, subscribe or purchase for full access. References 1. Perutz, M.F. Stereochemistry of Cooperative Effects in Haemoglobin Nature. 1970; 228:726-739 2. Wodrich, M.D. ∙ Hu, X. Natural Inspirations for Metal–Ligand Cooperative Catalysis Nat. Rev. Chem. 2017; 2, 0099 3. Chu, S. ∙ Majumdar, A. Opportunities and Challenges for a Sustainable Energy Future Nature.