{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T18:13:34Z","timestamp":1791915214848,"version":"4.3.4"},"reference-count":60,"publisher":"Wiley","issue":"14","license":[{"start":{"date-parts":[[2025,2,14]],"date-time":"2025-02-14T00:00:00Z","timestamp":1739491200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100010446","name":"Institute for Basic Science","doi-asserted-by":"publisher","award":["IBS\u2010R033"],"award-info":[{"award-number":["IBS\u2010R033"]}],"id":[{"id":"10.13039\/501100010446","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Science"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Cubane\u2010type metal clusters respond uniquely to stimuli like light and electric potential, resulting in behaviors such as crystal\u2010to\u2010crystal phase transitions. While structural adaptability is known to be linked to these responses, direct experimental evidence for the associated structural changes has been missing. This study addresses this gap by examining the structural dynamics of the copper(I) iodide cubane (Cu\n                    <jats:sub>4<\/jats:sub>\n                    I\n                    <jats:sub>4<\/jats:sub>\n                    (py)\n                    <jats:sub>4<\/jats:sub>\n                    , py = pyridine) upon photoexcitation using time\u2010resolved X\u2010ray liquidography. The results reveal: 1) 100 picoseconds (ps) after excitation, two distinct excited states\u2014the cluster\u2010centered triplet (\n                    <jats:sup>3<\/jats:sup>\n                    CC) state and the (metal+halide)\u2010to\u2010ligand charge transfer triplet (\n                    <jats:sup>3<\/jats:sup>\n                    (M\/X)LCT) state\u2014are present; 2) the\n                    <jats:sup>3<\/jats:sup>\n                    (M\/X)LCT state decays with an apparent time constant of 1.21\u00a0ns, primarily transitioning to the\n                    <jats:sup>3<\/jats:sup>\n                    CC state, with a small fraction undergoing decay to the ground state (GS); and 3) the\n                    <jats:sup>3<\/jats:sup>\n                    CC state eventually returns to the GS. The molecular structures, provided for these states serve as benchmarks for theoretical studies. Importantly, the\n                    <jats:sup>3<\/jats:sup>\n                    CC structure exhibits significant distortion in the Cu\n                    <jats:sub>4<\/jats:sub>\n                    I\n                    <jats:sub>4<\/jats:sub>\n                    core and reduced symmetry, findings that are unanticipated by previous models. This comprehensive investigation deepens the understanding of the structural transformations occurring upon photoexcitation, with a potential impact on future applications of these compounds as versatile components in photosensitive metal\u2013organic frameworks.\n                  <\/jats:p>","DOI":"10.1002\/advs.202414970","type":"journal-article","created":{"date-parts":[[2025,2,14]],"date-time":"2025-02-14T11:25:52Z","timestamp":1739532352000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Excited\u2010State Structural Dynamics of the Cubane\u2010Type Metal Cluster [Cu\n                    <sub>4<\/sub>\n                    I\n                    <sub>4<\/sub>\n                    (py)\n                    <sub>4<\/sub>\n                    ] Explored by Time\u2010Resolved X\u2010Ray Liquidography"],"prefix":"10.1002","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8920-2861","authenticated-orcid":false,"given":"Doyeong","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST)  Daejeon 34141 Republic of Korea"},{"name":"Center for Advanced Reaction Dynamics Institute for Basic Science (IBS)  Daejeon 34141 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8273-6596","authenticated-orcid":false,"given":"Hosung","family":"Ki","sequence":"additional","affiliation":[{"name":"Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST)  Daejeon 34141 Republic of Korea"},{"name":"Center for Advanced Reaction Dynamics Institute for Basic Science (IBS)  Daejeon 34141 Republic of 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