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 × 108 M-1 s-1, and as measured by Stern-Volmer quenching analysis.
摘要:
化合物[5,10,15,20-四(4-氟-2,6-二甲基苯基)卟啉]铂(II),[Pt(C52H40F4N4)]或Pt(II)TFP,已通过单晶X射线晶体学进行了合成和结构表征。Pt卟啉表现出长寿命的磷光激发态(τ0=66µs),其特征在于瞬态吸收和发射光谱。磷光对氧极其敏感,由5.0×108M-1s-1的淬火速率常数反映,并通过Stern-Volmer淬火分析测量。