Oxygen quenching of structurally characterized [5,10,15,20-tetrakis(4-fluoro-2,6-dimethylphenyl)porphyrinato]platinum(II).
Zane S DashRaymond Q HuangAna N KimberOpeyemi T OlubajoMark PolkOliver P RancuLauren L ZhangJane FuNejc NageljKristopher G ReynoldsShao Liang ZhengDilek K DogutanPublished in: Acta crystallographica. Section C, Structural chemistry (2024)
The compound [5,10,15,20-tetrakis(4-fluoro-2,6-dimethylphenyl)porphyrinato]platinum(II), [Pt(C 52 H 40 F 4 N 4 )] 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 0 = 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 8 M -1 s -1 , and as measured by Stern-Volmer quenching analysis.