article published Lorena Fritsch author 44418 Pia Rehsies author 46959 Wael Barakat author Deven P. Estes author Matthias Bauer author 472410000-0002-9294-6076 306 department Transition metal complexes, particularly copper hydrides, play an important role in various catalytic processes and molecular inorganic chemistry. This study employs synchrotron hard X‐ray spectroscopy to gain insights into the geometric and electronic properties of copper hydrides as potential catalysts for CO2 hydrogenation. The potential of high energy resolution X‐ray absorption near‐edge structure (HERFD‐XANES) and valence‐to‐core X‐ray emission (VtC‐XES) is demonstrated with measurement on Stryker's reagent (Cu6H6) and [Cu3(μ3‐H)(dpmppe)2](PF6)2 (Cu3H), alongside a non‐hydride copper compound (Cu‐I). The XANES analysis reveals that coordination geometries strongly influence the spectra, providing only indirect details about hydride coordination. The VtC‐XES analysis exhibits a distinct signal around 8975 eV, offering a diagnostic tool to identify hydride ligands. Theoretical calculations support and extend these findings by comparing hydride‐containing complexes with their hydride‐free counterparts. Wiley2024 eng Xray 0947-6539 1521-376510.1002/chem.202400357 3036 @article{Fritsch_Rehsies_Barakat_Estes_Bauer_2024, title={Detection and Characterization of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy}, volume={30}, DOI={<a href="https://doi.org/10.1002/chem.202400357">10.1002/chem.202400357</a>}, number={36}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Fritsch, Lorena and Rehsies, Pia and Barakat, Wael and Estes, Deven P. and Bauer, Matthias}, year={2024} } Fritsch L, Rehsies P, Barakat W, Estes DP, Bauer M. Detection and Characterization of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy. <i>Chemistry – A European Journal</i>. 2024;30(36). doi:<a href="https://doi.org/10.1002/chem.202400357">10.1002/chem.202400357</a> Fritsch, Lorena, et al. “Detection and Characterization of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy.” <i>Chemistry – A European Journal</i>, vol. 30, no. 36, Wiley, 2024, doi:<a href="https://doi.org/10.1002/chem.202400357">10.1002/chem.202400357</a>. L. Fritsch, P. Rehsies, W. Barakat, D.P. Estes, M. Bauer, Chemistry – A European Journal 30 (2024). Fritsch, Lorena, Pia Rehsies, Wael Barakat, Deven P. Estes, and Matthias Bauer. “Detection and Characterization of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy.” <i>Chemistry – A European Journal</i> 30, no. 36 (2024). <a href="https://doi.org/10.1002/chem.202400357">https://doi.org/10.1002/chem.202400357</a>. L. Fritsch, P. Rehsies, W. Barakat, D. P. Estes, and M. Bauer, “Detection and Characterization of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy,” <i>Chemistry – A European Journal</i>, vol. 30, no. 36, 2024, doi: <a href="https://doi.org/10.1002/chem.202400357">10.1002/chem.202400357</a>. Fritsch, L., Rehsies, P., Barakat, W., Estes, D. P., &#38; Bauer, M. (2024). Detection and Characterization of Hydride Ligands in Copper Complexes by Hard X‐ray Spectroscopy. <i>Chemistry – A European Journal</i>, <i>30</i>(36). <a href="https://doi.org/10.1002/chem.202400357">https://doi.org/10.1002/chem.202400357</a> 540242024-05-07T08:41:11Z2025-08-15T12:51:10Z