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In this work, we report three ionic semiconducting Cu(I)\n                    <jats:bold>CPs<\/jats:bold>\n                    constructed from (pyridin\u20104\u2010yl)\u2010\n                    <jats:italic>N<\/jats:italic>\n                    \u2010(4\n                    <jats:italic>H<\/jats:italic>\n                    \u20101,2,4\u2010triazol\u20104\u2010yl)methenamine (PTMA), oxydi(2,1\u2010phenylene)bis(diphenylphosphine), incorporating BF\n                    <jats:sub>4<\/jats:sub>\n                    <jats:sup>\u2212<\/jats:sup>\n                    (\n                    <jats:bold>CP1,<\/jats:bold>\n                    C\n                    <jats:sub>44<\/jats:sub>\n                    H\n                    <jats:sub>35<\/jats:sub>\n                    BCuF\n                    <jats:sub>4<\/jats:sub>\n                    N\n                    <jats:sub>5<\/jats:sub>\n                    OP\n                    <jats:sub>2<\/jats:sub>\n                    ), PF\n                    <jats:sub>6<\/jats:sub>\n                    <jats:sup>\u2212<\/jats:sup>\n                    (\n                    <jats:bold>CP2,<\/jats:bold>\n                    C\n                    <jats:sub>44<\/jats:sub>\n                    H\n                    <jats:sub>35<\/jats:sub>\n                    CuF\n                    <jats:sub>6<\/jats:sub>\n                    N\n                    <jats:sub>5<\/jats:sub>\n                    OP\n                    <jats:sub>3<\/jats:sub>\n                    ), and ClO\n                    <jats:sub>4<\/jats:sub>\n                    <jats:sup>\u2212<\/jats:sup>\n                    (\n                    <jats:bold>CP3,<\/jats:bold>\n                    C\n                    <jats:sub>44<\/jats:sub>\n                    H\n                    <jats:sub>35<\/jats:sub>\n                    ClCuN\n                    <jats:sub>5<\/jats:sub>\n                    O\n                    <jats:sub>5<\/jats:sub>\n                    P\n                    <jats:sub>2<\/jats:sub>\n                    ) counteranions. Among these,\n                    <jats:bold>CP1<\/jats:bold>\n                    shows outstanding dual\u2010gas sensing capability toward SO\n                    <jats:sub>2<\/jats:sub>\n                    and NO\n                    <jats:sub>2<\/jats:sub>\n                    at ambient conditions, achieving strong chemiresistive responses with excellent selectivity, fast response\u2013recovery behavior and stable cycling performance. Comparative studies using\n                    <jats:bold>CP2<\/jats:bold>\n                    and\n                    <jats:bold>CP3<\/jats:bold>\n                    reveal minimal counteranion influence, indicating that the sensing response is predominantly driven by interactions at the Cu\u2013ligand framework. Complementary experimental measurements and theoretical calculations reveal that adsorption of electron\u2010accepting analytes perturbs the electron density on Cu(I), inducing partial oxidation of Cu(I) to Cu(II) and modulating charge transfer along the polymer backbone without disrupting structural stability, thereby accounting for the observed resistance modulation. Overall, these findings highlight the potential of Cu(I) systems as a high\u2010efficiency platform for room\u2010temperature dual\u2010gas sensing.\n                  <\/jats:p>","DOI":"10.1002\/chem.71766","type":"journal-article","created":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T05:40:16Z","timestamp":1791351616000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Redox\u2010Coupled Charge Transfer in an Ionic Cu(I) Coordination Polymer for Room\u2010Temperature NO\n                    <sub>2<\/sub>\n                    and SO\n                    <sub>2<\/sub>\n                    Sensing"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-1092-4409","authenticated-orcid":false,"given":"Anrudh","family":"Mishra","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Indore Indore Madhya Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-8444-0250","authenticated-orcid":false,"given":"Vikash Kumar","family":"Verma","sequence":"additional","affiliation":[{"name":"Hybrid Nanodevice Research Group (HNRG), Department of Electrical Engineering Indian Institute of Technology Indore Indore Madhya Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6974-0179","authenticated-orcid":false,"given":"Dilip","family":"Pandey","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Indore Indore Madhya Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L.","family":"Ponvijayakanthan","sequence":"additional","affiliation":[{"name":"Nanomaterials Research Laboratory, Department of Engineering Sciences ABV Indian Institute of Information Technology and Management Gwalior Gwalior Madhya Pradesh India"},{"name":"2\u2010D Materials Research Laboratory, Indian Institute of Information Technology Design &amp; Manufacturing Jabalpur  Madhya Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarvesh Kumar","family":"Maurya","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Indore Indore Madhya Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5062-698X","authenticated-orcid":false,"given":"Neeraj K.","family":"Jaiswal","sequence":"additional","affiliation":[{"name":"Nanomaterials Research Laboratory, Department of Engineering Sciences ABV Indian Institute of Information Technology and Management Gwalior Gwalior Madhya Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9879-7278","authenticated-orcid":false,"given":"Shaibal","family":"Mukherjee","sequence":"additional","affiliation":[{"name":"Hybrid Nanodevice Research Group (HNRG), Department of Electrical Engineering Indian Institute of Technology Indore Indore Madhya Pradesh India"},{"name":"Centre For Advance Electronics (CAE) Indian Institute of Technology Indore Indore Madhya Pradesh India"},{"name":"School of Engineering RMIT University Melbourne Victoria Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7783-5095","authenticated-orcid":false,"given":"Abhinav","family":"Raghuvanshi","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Indore Indore Madhya Pradesh India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,6]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"crossref","unstructured":"C. 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