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The consequences on the extension of a \u03c0 system surrounding a persulfurated benzene core provide a new avenue to study the structural, photophysical, and chemical properties of such family of all\u2010organic phosphors. It also diverts the persulfuration mechanism after two radical cyclizations for making a [5]dithiohelicene by\u2010product (<jats:bold>7<\/jats:bold>) and favors dynamic sulfur component exchange reactions surrounding the core. These exchanges convert asterisks (<jats:bold>5<\/jats:bold>) and (<jats:bold>6<\/jats:bold>), non\u2010phosphorescent at 20\u2009\u00b0C to the highly phosphorescent (<jats:bold>4<\/jats:bold>) (<jats:italic>\u03d5<\/jats:italic> \u223c100\u2009%, solid state at 20\u2009\u00b0C). For asterisks (<jats:bold>5<\/jats:bold>) and (<jats:bold>6<\/jats:bold>), the absence of the typical phosphorescence of the per(phenylthio)benzene core in the solid state at 20\u2009\u00b0C and the presence of a weak naphthalene\u2010based phosphorescence at 77\u2005K is attributed to an energy transfer from the triplet state of the persulfurated benzene core to the outer naphthalene moieties, resulting in an antenna system.<\/jats:p>","DOI":"10.1002\/chem.202200797","type":"journal-article","created":{"date-parts":[[2022,4,20]],"date-time":"2022-04-20T13:13:52Z","timestamp":1650460432000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Persulfurated Benzene\u2010Cored Asterisks with \u03c0\u2010Extended ThioNaphthyl Arms: Synthesis, Structural, Photophysical and Covalent Dynamic Properties"],"prefix":"10.1002","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4349-4923","authenticated-orcid":false,"given":"Sapna","family":"Gahlot","sequence":"first","affiliation":[{"name":"Aix Marseille Univ, CNRS, CINaM  Marseille France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessandro","family":"Gradone","sequence":"additional","affiliation":[{"name":"Department of Chemistry (\u201cGiacomo Ciamician\u201d) University of Bologna  Via Selmi, 2 40126 Bologna Italy"},{"name":"Institute for Microelectronics and Microsystems Italian National Research Council, Section of Bologna  Via Piero Gobetti 101 40129 Bologna Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9903-5067","authenticated-orcid":false,"given":"Myriam","family":"Roy","sequence":"additional","affiliation":[{"name":"Aix Marseille Univ, CNRS, CINaM  Marseille France"},{"name":"Sorbonne Universit\u00e9, CNRS Institut Parisien de Chimie Mol\u00e9culaire  75005 Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4367-1985","authenticated-orcid":false,"given":"Michel","family":"Giorgi","sequence":"additional","affiliation":[{"name":"Aix Marseille Univ, CNRS, Centrale Marseille, FSCM  Marseille France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simone","family":"Conti","sequence":"additional","affiliation":[{"name":"Department of Chemistry (\u201cGiacomo Ciamician\u201d) University of Bologna  Via Selmi, 2 40126 Bologna Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8916-1473","authenticated-orcid":false,"given":"Paola","family":"Ceroni","sequence":"additional","affiliation":[{"name":"Aix Marseille Univ, CNRS, CINaM  Marseille France"},{"name":"Department of Chemistry (\u201cGiacomo Ciamician\u201d) University of Bologna  Via Selmi, 2 40126 Bologna Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1792-159X","authenticated-orcid":false,"given":"Marco","family":"Villa","sequence":"additional","affiliation":[{"name":"Aix Marseille Univ, CNRS, CINaM  Marseille France"},{"name":"Department of Chemistry (\u201cGiacomo Ciamician\u201d) University of Bologna  Via Selmi, 2 40126 Bologna Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3704-7024","authenticated-orcid":false,"given":"Marc","family":"Gingras","sequence":"additional","affiliation":[{"name":"Aix Marseille Univ, CNRS, CINaM  Marseille France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,6,27]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201401356"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.5b00263"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1039\/C6CC09288H"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201800521"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1039\/C6FD00218H"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200500032"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200500032"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-3773(19981204)37:22<3149::AID-ANIE3149>3.0.CO;2-4"},{"key":"e_1_2_8_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-3757(19981116)110:22<3338::AID-ANGE3338>3.0.CO;2-P"},{"key":"e_1_2_8_8_1","unstructured":"\u00a0"},{"key":"e_1_2_8_9_2","first-page":"277","volume":"29","author":"Adams R.","year":"1957","journal-title":"Croat. 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