Oxygen quenching of structurally characterized [5,10,15,20‐tetrakis(4‐fluoro‐2,6‐dimethylphenyl)porphyrinato]platinum(II)

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...

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Veröffentlicht in:	Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2024-03, Vol.80 (3), p.85-90
Hauptverfasser:	Dash, Zane S., Huang, Raymond Q., Kimber, Ana N., Olubajo, Opeyemi T., Polk, Mark, Rancu, Oliver P., Zhang, Lauren L., Fu, Jane, Nagelj, Nejc, Reynolds, Kristopher G., Zheng, Shao-Liang, Dogutan, Dilek K.
Format:	Artikel
Sprache:	eng
Schlagworte:	crystal structure Crystallography Emission spectroscopy Oxygen oxygen sensing Phosphorescence Platinum porphyrin Porphyrins Quenching time‐resolved absorption spectroscopy time‐resolved emission spectroscopy
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Zusammenfassung:	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 × 108 M−1 s−1, and as measured by Stern–Volmer quenching analysis. A newly synthesized and crystallographically characterized platinum porphyrin is efficiently quenched by oxygen as determined by steady‐state and time‐resolved spectroscopy.
ISSN:	2053-2296 0108-2701 2053-2296 1600-5759
DOI:	10.1107/S2053229624001621