“…As a sampling, Schottky defects on MgO have been proposed to be the active sites for the oxidation of carbon monoxide. 26 Likewise, Boudart and co-workers have studied the activity of V sites for H2-D2 exchange at -196 purple,g = 2.0022, 2.0026, A(,4N) = 7.4 32 SrO pyridine purple, g = 2.002, 2.003, A (14N) = 7.2 32 0 g represents the ESR absorption value or g factor. 6 A is the hyperfine splitting in gauss for 14N.…”