Zane S. Dash, Raymond Q. Huang, Ana N. Kimber, Opeyemi T. Olubajo, Mark Polk, Oliver P. Rancu, Lauren L. Zhang, Jane Fu, Nejc Nagelj, Kristopher G. Reynolds, Shao-Liang Zheng, Dilek K. Dogutan
{"title":"Oxygen quenching of structurally characterized [5,10,15,20-tetrakis(4-fluoro-2,6-dimethylphenyl)porphyrinato]platinum(II)","authors":"Zane S. Dash, Raymond Q. Huang, Ana N. Kimber, Opeyemi T. Olubajo, Mark Polk, Oliver P. Rancu, Lauren L. Zhang, Jane Fu, Nejc Nagelj, Kristopher G. Reynolds, Shao-Liang Zheng, Dilek K. Dogutan","doi":"10.1107/s2053229624001621","DOIUrl":null,"url":null,"abstract":"The compound [5,10,15,20-tetrakis(4-fluoro-2,6-dimethylphenyl)porphyrinato]platinum(II), [Pt(C<sub>52</sub>H<sub>40</sub>F<sub>4</sub>N<sub>4</sub>)] or Pt(II)TFP, has been synthesized and structurally characterized by single-crystal X-ray crystallography. The Pt porphyrin exhibits a long-lived phosphorescent excited state (τ<sub>0</sub> = 66 µs), which has been characterized by transient absorption and emission spectroscopy. The phosphorescence is extremely sensitive to oxygen, as reflected by a quenching rate constant of 5.0 × 10<sup>8</sup> <i>M</i><sup>−1</sup> s<sup>−1</sup>, and as measured by Stern–Volmer quenching analysis.","PeriodicalId":510890,"journal":{"name":"Acta Crystallographica Section C","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Crystallographica Section C","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1107/s2053229624001621","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The compound [5,10,15,20-tetrakis(4-fluoro-2,6-dimethylphenyl)porphyrinato]platinum(II), [Pt(C52H40F4N4)] or Pt(II)TFP, has been synthesized and structurally characterized by single-crystal X-ray crystallography. The Pt porphyrin exhibits a long-lived phosphorescent excited state (τ0 = 66 µs), which has been characterized by transient absorption and emission spectroscopy. The phosphorescence is extremely sensitive to oxygen, as reflected by a quenching rate constant of 5.0 × 108M−1 s−1, and as measured by Stern–Volmer quenching analysis.
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