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Herein, we report on the synthesis and characterization of a hitherto unknown P(V)\u2010porphyrin having hydrogen atoms as axial ligands (\n                    <jats:bold>1<\/jats:bold>\n                    <jats:sup>+<\/jats:sup>\n                    <jats:bold>\u00b7<\/jats:bold>\n                    PF\n                    <jats:sub>6<\/jats:sub>\n                    <jats:sup>\u2013<\/jats:sup>\n                    , PF\n                    <jats:sub>6<\/jats:sub>\n                    <jats:sup>\u2013<\/jats:sup>\n                    is a counter anion). Synthesis of\n                    <jats:bold>1<\/jats:bold>\n                    <jats:sup>+<\/jats:sup>\n                    <jats:bold>\u00b7<\/jats:bold>\n                    PF\n                    <jats:sub>6<\/jats:sub>\n                    <jats:sup>\u2013<\/jats:sup>\n                    was achieved by treatment of dichloro\u2010derivative (\n                    <jats:bold>2<\/jats:bold>\n                    <jats:sup>+<\/jats:sup>\n                    <jats:bold>\u00b7<\/jats:bold>\n                    Cl\n                    <jats:sup>\u2013<\/jats:sup>\n                    ) with LiAlH\n                    <jats:sub>4<\/jats:sub>\n                    followed by AgPF\n                    <jats:sub>6<\/jats:sub>\n                    via hydride reduction accompanied by one\u2010electron reduction and one\u2010electron oxidation. The porphyrin core of\n                    <jats:bold>1<\/jats:bold>\n                    <jats:sup>+<\/jats:sup>\n                    <jats:bold>\u00b7<\/jats:bold>\n                    PF\n                    <jats:sub>6<\/jats:sub>\n                    <jats:sup>\u2013<\/jats:sup>\n                    is nonplanar but considerably ruffled. The cyclic voltammogram of\n                    <jats:bold>1<\/jats:bold>\n                    <jats:sup>+<\/jats:sup>\n                    <jats:bold>\u00b7<\/jats:bold>\n                    PF\n                    <jats:sub>6<\/jats:sub>\n                    <jats:sup>\u2013<\/jats:sup>\n                    exhibits two reversible waves, which indicates redox couples among\n                    <jats:bold>1<\/jats:bold>\n                    <jats:sup>+<\/jats:sup>\n                    , neutral radical\n                    <jats:bold>\n                      1\n                      <jats:sup>\u2022<\/jats:sup>\n                    <\/jats:bold>\n                    , and\n                    <jats:bold>1<\/jats:bold>\n                    <jats:sup>\u2013<\/jats:sup>\n                    . Compound\n                    <jats:bold>1<\/jats:bold>\n                    <jats:sup>+<\/jats:sup>\n                    <jats:bold>\u00b7<\/jats:bold>\n                    PF\n                    <jats:sub>6<\/jats:sub>\n                    <jats:sup>\u2013<\/jats:sup>\n                    is tolerant toward air despite its PH\n                    <jats:sub>2<\/jats:sub>\n                    moiety due to the energetically low\u2010lying HOMO (highest occupied molecular orbital) and \u03c3(P\u2013H) orbitals.\n                  <\/jats:p>","DOI":"10.1002\/chem.202502215","type":"journal-article","created":{"date-parts":[[2025,9,7]],"date-time":"2025-09-07T08:20:17Z","timestamp":1757233217000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["A Phosphorus(V)\u2010Centered Porphyrin Having Redox\u2010 and Air\u2010Stable Axial P\u2013H Bonds"],"prefix":"10.1002","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7832-912X","authenticated-orcid":false,"given":"Shintaro","family":"Ishida","sequence":"first","affiliation":[{"name":"Department of Chemistry Graduate School of Science Tohoku University Aoba\u2010ku  Sendai 9808578 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiki","family":"Ota","sequence":"additional","affiliation":[{"name":"Department of Chemistry Graduate School of Science Tohoku University Aoba\u2010ku  Sendai 9808578 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nozomu","family":"Kuwabara","sequence":"additional","affiliation":[{"name":"Department of Chemistry Graduate School of Science Tohoku University Aoba\u2010ku  Sendai 9808578 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takuroh","family":"Hatakeyama","sequence":"additional","affiliation":[{"name":"Department of Chemistry Graduate School of Science Tohoku University Aoba\u2010ku  Sendai 9808578 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8556-5785","authenticated-orcid":false,"given":"Takeaki","family":"Iwamoto","sequence":"additional","affiliation":[{"name":"Department of Chemistry Graduate School of Science Tohoku University Aoba\u2010ku  Sendai 9808578 Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,9,7]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1021\/ar00075a002"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr9410880"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0065-3055(01)48003-8"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3DT02583G"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp026991f"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.inorgchem.6b01989"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1039\/b504029a"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1039\/C39950000939"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1021\/ic990326c"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1039\/c2ob26478a"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1142\/S1088424605000563"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1039\/C7CC06052A"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1021\/ic702480m"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1039\/C4TA07018F"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.inorgchem.6b01924"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1039\/D0CP05783E"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.inorgchem.1c02531"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.inorgchem.2c01648"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.4c06674"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1246\/bcsj.79.1420"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jphotochem.2011.01.002"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1246\/cl.130184"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dyepig.2015.04.011"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bmcl.2017.10.032"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bmc.2017.10.031"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00044-018-2166-0"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.1039\/b9pp00204a"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bmcl.2013.02.081"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrestox.8b00059"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cplett.2020.137315"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1021\/ol062979k"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp054034a"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja00446a018"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0040-4039(00)60965-6"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1016\/0277-5387(94)00411-7"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1246\/bcsj.75.1757"},{"key":"e_1_2_8_37_1","doi-asserted-by":"publisher","DOI":"10.1002\/ejoc.201900528"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.1142\/S1088424619500871"},{"key":"e_1_2_8_39_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp076303y"},{"key":"e_1_2_8_40_1","doi-asserted-by":"publisher","DOI":"10.1246\/bcsj.20130191"},{"key":"e_1_2_8_41_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00044-018-2255-0"},{"key":"e_1_2_8_42_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja00136a034"},{"key":"e_1_2_8_43_1","doi-asserted-by":"publisher","DOI":"10.1039\/a809601e"},{"key":"e_1_2_8_44_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-328X(00)00447-2"},{"key":"e_1_2_8_45_1","doi-asserted-by":"publisher","DOI":"10.1021\/ic010595e"},{"key":"e_1_2_8_46_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.5b05781"},{"key":"e_1_2_8_47_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dyepig.2017.07.053"},{"key":"e_1_2_8_48_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.202002587"},{"key":"e_1_2_8_49_1","unstructured":"Deposition 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