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 ( τ 0   = 66   µ s), 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.

Source: Acta Crystallographica Section C - February 26, 2024 Category: Chemistry Authors: Dash, Z.S. Huang, R.Q. Kimber, A.N. Olubajo, O.T. Polk, M. Rancu, O.P. Zhang, L.L. Fu, J. Nagelj, N. Reynolds, K.G. Zheng, S.-L. Dogutan, D.K. Tags: platinum porphyrin oxygen sensing time-resolved absorption spectroscopy crystal structure time-resolved emission spectroscopy research papers Source Type: research