TABLE 1.
XAS analysis
SPY is square pyramidal, and αKG is α-ketoglutarate; CN is coordination number; Im is imidazole; and E is energy.
| ABH2 sample | XANES analysis |
EXAFS analysis |
||||||
|---|---|---|---|---|---|---|---|---|
| Edge E | 1s → 3d peak area (×102 eV) | CN/geometry | Shell | r | σ2 (×10−2 eV) | ΔE0 | R | |
| eV | Å | eV | ||||||
| Iron | 7125.9 (2) | 9 (1) | 5 | 5N (2 Im) | 2.02 (1) | 7 (1) | −9 (2) | 0.027 |
| 3C | 3.09 (6) | 1 (5) | ||||||
| Nickel | 8344.7 (2) | 5 (1) | 5/SPY | 5N (2 Im) | 2.08 (1) | 4.7 (5) | −4 (1) | 0.023 |
| Nickel + αKG | 8345.3 (2) | 5.4 (8) | 5/SPY | 5N (2 Im) | 2.103 (6) | 6 (1) | −6 (1) | 0.011 |
| 1C | 2.46 (3) | 5 (3) | ||||||