Chem-145 undergraduates have published a paper on oxygen sensing  in the journal Acta Crystallographica Section C: Structural Chemistry. Undergraduate authors include Zane S. Dash, Raymond Q. Huang, Ana. N. Kimber, Opeyemi T. Olubajo, Mark K. Polk, Oliver P. Rancu, Lauren L. Zhang, and Jane. Fu. Other authors include Nejc Nagelj, a Teaching Fellow, and Kristopher G. Reynolds, a graduate student in the Nocera Lab. Senior authors include Shao-Liang Zheng, Director of the Center for Crystallographic Studies and Dilek Dogutan, Principal Research Scientist with the Nocera Group and Lecturer.

Chemistry 145 is a laboratory course  taught by instructor Dilek Dogutan Kiper and designed to introduce students to inorganic laboratory synthesis, purification, and characterization techniques. Students learn proper and safe techniques for handling and storing air, light, water-sensitive compounds, including the use of an inert-atmosphere glovebox and a Schlenk line. Synthesized compounds are analyzed by various methods including infrared (IR), Electron Paramagnetic Resonance (EPR), paramagnetic and Nuclear Magnetic Resonance (NMR), and electronic absorption spectroscopies; and electrochemical techniques. Emphasis is placed on rigorous adherence to the scientific method in the form of neat, comprehensive, clear entries in electronic laboratory notebooks hosted at Harvard Wiki including characterization data. Students develop the ability to read, understand, interpret, and explain the primary scientific literature, write research papers as manuscripts, and learn how to use different search engines, such as SciFinder, Web of Science.

The article title and link follow:

Title:

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

Link:

https://doi.org/10.1107/S2053229624001621 

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.