Chart 1. Illustration of the cha Cage Showing the 6r and 8r, a Cu⁺ Cation in the 6r and the Compensating Proton (a); Static DFT Optimized Geometry of Cu⁺ and Cu²⁺ in the 6r of Cu-SSZ-13 (b) and Cu-SAPO-34 (c)a.

^a Al, P, O, Si, Cu, and H atoms depicted in gray, yellow, red, orange, green, and white, respectively.