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. Author manuscript; available in PMC: 2023 Sep 28.
Published in final edited form as: J Am Chem Soc. 2023 Sep 11;145(37):20610–20623. doi: 10.1021/jacs.3c07399

Table 2.

Summary of S K-edge XAS Pre-edge Fitting

Variant Pre-edge Energy (eV) Covalency (% Sp)
M121EAz 2469.3 20 ± 1
HEAz 2469.4 19 ± 1
HESAz 2469.7 8 ± 1
HENAz 2469.4 19 ± 1
HENSAz 2469.6 15 ± 1
HEPAz 2469.8 12 ± 1