{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T19:58:32Z","timestamp":1780430312628,"version":"3.54.1"},"reference-count":82,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2025,12,30]],"date-time":"2025-12-30T00:00:00Z","timestamp":1767052800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,12,30]],"date-time":"2025-12-30T00:00:00Z","timestamp":1767052800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    The influence of \u03c0\u2010conjugation on optoelectronic properties, particularly electronic conductivity of air\u2010stable 1,2,4\u2010benzotriazinyl radicals (known as Blatter radicals), remains largely unexplored, yet is critical for advancing organic electronics. Herein, we elucidate the modulation of optoelectronic properties and electronic conductivities of Blatter radicals functionalized with varied conjugating units in two\u2010terminal solid\u2010state devices. The Blatter radicals\n                    <jats:bold>\n                      1N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    and\n                    <jats:bold>\n                      3N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    were synthesized via Pd(0)\u2010catalyzed C\u2500C coupling, while\n                    <jats:bold>\n                      2N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    was synthesized via Pd(II)\/Cu(I)\u2010catalyzed C\u2500C coupling, starting from 7\u2010bromo\u2010Blatter radical (\n                    <jats:bold>\n                      4N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    ), incorporating phenanthrene, naphthyl, and ethynylphenanthrene substituents at C7\u2010position, respectively. The radicals\n                    <jats:bold>\n                      1N\n                      <jats:sup>\u2022<\/jats:sup>\n                      \u2013 3N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    exhibited bathochromically shifted UV\u2013vis absorption and optical bandgaps (ca. 2.13 eV) relatively lower than\n                    <jats:bold>\n                      4N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    (2.30 eV) due to enhanced \u03c0\u2010delocalization. Upon one\u2010electron oxidation (\n                    <jats:bold>\n                      nN\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    \u2192\n                    <jats:bold>\n                      nN\n                      <jats:sup>+<\/jats:sup>\n                      , n = 1 \u2013 4\n                    <\/jats:bold>\n                    ), additional red\u2010shifted absorption bands were observed and corroborated by time\u2010dependent density functional theory (TD\u2010DFT) calculations. Intermolecular \u03c0\u2013\u03c0 stacking interactions between 1,2,4\u2010benzotriazinyl units facilitated intermolecular spin\u2010spin interactions, strong antiferromagnetic interactions with 2\n                    <jats:italic>\n                      J\/k\n                      <jats:sub>B<\/jats:sub>\n                    <\/jats:italic>\n                    values of \u221235.22 and \u221223.73 K, for\n                    <jats:bold>\n                      1N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    and\n                    <jats:bold>\n                      4N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    , respectively. Notably, the extended \u03c0\u2010conjugation and structurally favorable packing in\n                    <jats:bold>\n                      1N\n                      <jats:sup>\u2022<\/jats:sup>\n                      \u2013 3N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    led to reduced bandgaps and an order\u2010of\u2010magnitude increase in electronic conductivity (ca. 7.2\u00a0\u00d7\u00a010\n                    <jats:sup>\u22126<\/jats:sup>\n                    S m\n                    <jats:sup>\u22121<\/jats:sup>\n                    ) compared to\n                    <jats:bold>\n                      4N\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    (2.85\u00a0\u00d7\u00a010\n                    <jats:sup>\u22127<\/jats:sup>\n                    S m\n                    <jats:sup>\u22121<\/jats:sup>\n                    ).\n                  <\/jats:p>","DOI":"10.1002\/smll.202510522","type":"journal-article","created":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T05:12:21Z","timestamp":1767157941000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["\u03c0\u2010Conjugated Blatter Radicals: Molecular Structure\u2010Driven Modulation of Optoelectronic Properties and Electrical Conductivity"],"prefix":"10.1002","volume":"22","author":[{"given":"Saurabh Kumar","family":"Rajput","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology (IIT) Kanpur  Kanpur India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rajwinder","family":"Kaur","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology (IIT) Kanpur  Kanpur 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