Born-Haber thermochemical cycles provide a conceptual framework to deconstruct an apparent change in free energy between two states into individual contributions from distinct chemical processes. Scheme 1 shows a series of chemical steps that conveniently deconvolutes measured values of ∆𝐺 ‡ into specific chemical interactions within Ti-zeolites that possess low (Scheme 1a) or high (Scheme 1b) densities of (SiOH) x . In this sequence, fluid-phase alkene molecules enter the pores of the Tizeolite, displace solvent molecules, and interact with the surrounding pore walls, which corresponds to a free energy of adsorption (∆𝐺 ) that depends primarily on the characteristic size of the surrounding pores. Next, solvent molecules localized near Ti active sites must reorganize to accommodate the 1-alkene conformation that positions the C=C with Ti-OOH intermediates prior to O-atom transfer (∆𝐺 ). Finally, the events that lead to O-atom transfer between the Ti-OOH and the C=C is described by an intrinsic free energy of activation (∆𝐺 ‡ ) that depends only on the identity of the active metal atom. In this conceptual framework, values of ∆𝐺 ‡ are given by