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This study employs synchrotron hard X\u2010ray spectroscopy to gain insights into the geometric and electronic properties of copper hydrides as potential catalysts for CO<jats:sub>2<\/jats:sub> hydrogenation. The potential of high energy resolution X\u2010ray absorption near\u2010edge structure (HERFD\u2010XANES) and valence\u2010to\u2010core X\u2010ray emission (VtC\u2010XES) is demonstrated with measurement on Stryker's reagent (<jats:bold>Cu<jats:sub>6<\/jats:sub>H<jats:sub>6<\/jats:sub><\/jats:bold>) and [Cu<jats:sub>3<\/jats:sub>(\u03bc<jats:sub>3<\/jats:sub>\u2010H)(dpmppe)<jats:sub>2<\/jats:sub>](PF<jats:sub>6<\/jats:sub>)<jats:sub>2<\/jats:sub> (<jats:bold>Cu<jats:sub>3<\/jats:sub>H<\/jats:bold>), alongside a non\u2010hydride copper compound ICu(dtbppOH) (<jats:bold>Cuy\u2212I<\/jats:bold>). The XANES analysis reveals that coordination geometries strongly influence the spectra, providing only indirect details about hydride coordination. The VtC\u2010XES analysis exhibits a distinct signal around 8975\u2005eV, offering a diagnostic tool to identify hydride ligands. Theoretical calculations support and extend these findings by comparing hydride\u2010containing complexes with their hydride\u2010free counterparts.<\/jats:p>","DOI":"10.1002\/chem.202400357","type":"journal-article","created":{"date-parts":[[2024,4,23]],"date-time":"2024-04-23T09:28:11Z","timestamp":1713864491000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Detection and Characterization of Hydride Ligands in Copper Complexes by Hard X\u2010Ray Spectroscopy"],"prefix":"10.1002","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3990-6278","authenticated-orcid":false,"given":"Lorena","family":"Fritsch","sequence":"first","affiliation":[{"name":"Institute of Inorganic Chemistry and Center for Sustainable Systems Design (CSSD) Paderborn University  Warburger Stra\u00dfe 100 33098 Paderborn Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pia","family":"Rehsies","sequence":"additional","affiliation":[{"name":"Institute of Inorganic Chemistry and Center for Sustainable Systems Design (CSSD) Paderborn University  Warburger Stra\u00dfe 100 33098 Paderborn Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wael","family":"Barakat","sequence":"additional","affiliation":[{"name":"Instritute of Technical Chemistry University of Stuttgart  Pfaffenwaldring 55 70569 Stuttgart Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3215-3461","authenticated-orcid":false,"given":"Deven P.","family":"Estes","sequence":"additional","affiliation":[{"name":"Instritute of Technical Chemistry University of Stuttgart  Pfaffenwaldring 55 70569 Stuttgart Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9294-6076","authenticated-orcid":false,"given":"Matthias","family":"Bauer","sequence":"additional","affiliation":[{"name":"Institute of Inorganic Chemistry and Center for Sustainable Systems Design (CSSD) Paderborn University  Warburger Stra\u00dfe 100 33098 Paderborn Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,5,22]]},"reference":[{"key":"e_1_2_9_1_1","unstructured":"\u00a0"},{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.est.2023.108456"},{"volume-title":"Recent advances in hydride chemistry","year":"2007","author":"Peruzzini M.","key":"e_1_2_9_3_2"},{"key":"e_1_2_9_4_1","unstructured":"\u00a0"},{"key":"e_1_2_9_5_2","first-page":"1","volume":"16","author":"Orchin M.","year":"1966","journal-title":"AIP Conf. 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