{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,17]],"date-time":"2026-05-17T07:28:50Z","timestamp":1779002930696,"version":"3.51.4"},"reference-count":59,"publisher":"Wiley","issue":"22","license":[{"start":{"date-parts":[[2025,9,23]],"date-time":"2025-09-23T00:00:00Z","timestamp":1758585600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["aces.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Chemistry \u0097 An Asian Journal"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    In the present study, we synthesized three non\u2010heme Fe\n                    <jats:sup>III<\/jats:sup>\n                    complexes (Fe\n                    <jats:sup>III<\/jats:sup>\n                    [L\n                    <jats:sup>1<\/jats:sup>\n                    ]\n                    <jats:sub>2<\/jats:sub>\n                    )\n                    <jats:sup>\u2212<\/jats:sup>\n                    (\n                    <jats:bold>1<\/jats:bold>\n                    ), (Fe\n                    <jats:sup>III<\/jats:sup>\n                    [L\n                    <jats:sup>2<\/jats:sup>\n                    ]\n                    <jats:sub>2<\/jats:sub>\n                    )\n                    <jats:sup>\u2212<\/jats:sup>\n                    (\n                    <jats:bold>2<\/jats:bold>\n                    ), and (Fe\n                    <jats:sup>III<\/jats:sup>\n                    [L\n                    <jats:sup>3<\/jats:sup>\n                    ]\n                    <jats:sub>2<\/jats:sub>\n                    )\n                    <jats:sup>\u2212<\/jats:sup>\n                    (\n                    <jats:bold>3<\/jats:bold>\n                    ) with 4\u2010hydroxy pyridine\u20102,6\u2010dicarboxamide (H\n                    <jats:sub>2<\/jats:sub>\n                    L\n                    <jats:sup>1<\/jats:sup>\n                    ), pyridine\u20102,6\u2010dicarboxamide (H\n                    <jats:sub>2<\/jats:sub>\n                    L\n                    <jats:sup>2<\/jats:sup>\n                    ), and 4\u2010methoxy pyridine\u20102,6\u2010dicarboxamide (H\n                    <jats:sub>2<\/jats:sub>\n                    L\n                    <jats:sup>3<\/jats:sup>\n                    ) based ligands and characterized by elemental analysis, single crystal X\u2010ray diffraction (for\n                    <jats:bold>1<\/jats:bold>\n                    and\n                    <jats:bold>2<\/jats:bold>\n                    ), EPR, M\u00f6\u03b2bauer (for\n                    <jats:bold>1<\/jats:bold>\n                    ), UV\u2013visible and infrared spectroscopy. Hydrogen evolution reaction (HER) catalytic activity of\n                    <jats:bold>1<\/jats:bold>\n                    ,\n                    <jats:bold>2<\/jats:bold>\n                    , and\n                    <jats:bold>3<\/jats:bold>\n                    was performed in the presence of acids such as acetic acid (AcOH) and triethylammonium chloride\/triethylammonium tetrafluoroborate (HNEt\n                    <jats:sub>3<\/jats:sub>\n                    Cl\/HNEt\n                    <jats:sub>3<\/jats:sub>\n                    BF\n                    <jats:sub>4<\/jats:sub>\n                    ) in dimethylformamide (DMF). In these compounds, the primary coordination sphere of Fe remained similar, forming bis\u2010chelated hexa\u2010coordinated complexes. However, single\u2010crystal X\u2010ray structures revealed that the Fe\u2010Npyridine bond distances are different in\n                    <jats:bold>1<\/jats:bold>\n                    and\n                    <jats:bold>2<\/jats:bold>\n                    . Noteworthily, complex\n                    <jats:bold>1<\/jats:bold>\n                    showed better electrocatalytic activity for HER with a\n                    <jats:italic>k<\/jats:italic>\n                    <jats:sub>cat<\/jats:sub>\n                    of 1.4\u00a0\u00b1\u00a00.07 \u00d7 10\n                    <jats:sup>5<\/jats:sup>\n                    \u00a0M\n                    <jats:sup>\u22121<\/jats:sup>\n                    s\n                    <jats:sup>\u22121<\/jats:sup>\n                    in the presence of HNEt\n                    <jats:sub>3<\/jats:sub>\n                    Cl, highlighting the significant effect of internal hydroxy functional groups in HER. The presence of additional hydroxy groups in complex\n                    <jats:bold>1<\/jats:bold>\n                    plays the role of a local proton source and facilitates an intramolecular proton transfer, which enhances the catalytic rates for HER. The current study emphasizes how tuning the ligand scaffolds in Fe\n                    <jats:sup>III<\/jats:sup>\n                    complexes could potentially affect their catalytic activity for HER.\n                  <\/jats:p>","DOI":"10.1002\/asia.70259","type":"journal-article","created":{"date-parts":[[2025,9,23]],"date-time":"2025-09-23T12:01:15Z","timestamp":1758628875000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Accelerating Electrochemical Hydrogen Evolution by Introducing Local Proton Source in Non\u2010Heme Iron (III) Complexes"],"prefix":"10.1002","volume":"20","author":[{"given":"Bharath","family":"M","sequence":"first","affiliation":[{"name":"Department of Chemistry Ashoka University  Rajiv Gandhi Education City Sonipat Haryana 131029 India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meenakshi","family":"Rana","sequence":"additional","affiliation":[{"name":"Department 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