《Capture and Release of Singlet Oxygen in Coordination-Driven Self-Assembled Organoplatinum(II) Metallacycles》 was published in Journal of the American Chemical Society in 2020. These research results belong to He, Yan-Qin; Fudickar, Werner; Tang, Jian-Hong; Wang, Heng; Li, Xiaopeng; Han, Jun; Wang, Zhengping; Liu, Min; Zhong, Yu-Wu; Linker, Torsten; Stang, Peter J.. COA of Formula: C20H14O The article mentions the following:
Singlet oxygen (1O2), as an important active reagent, has found wide applications in photodynamic therapy (PDT), synthetic chem., and materials science. Organic conjugated aromatics serving as hosts to capture and release singlet oxygen have been systematically investigated over the last decades. Herein, we present a [6 + 6] organoplatinum(II) metallacycle by using ∼180° dipyridylanthracene donor and ∼120° Pt(II) acceptor as the building blocks, which enables the capture and release of singlet oxygen with relatively high photooxygenation and thermolysis rate constants The photooxygenation of the metallacycle to the corresponding endoperoxide was performed by sensitized irradiation, and the resulting endoperoxide is stable at room temperature and can be stored under ambient condition over months. Upon simple heating of the neat endoperoxide under inert atm. at 120°C for 4 h, the resulting endoperoxide can be reconverted to the corresponding parent form and singlet oxygen. The photooxygenation and thermolysis products were characterized by NMR spectroscopy and electrospray ionization time-of-flight mass spectrometric anal. D. functional theory calculations were conducted in order to reveal the frontier MO interactions and reactivity. This work provides a new material platform for singlet oxygen related promising applications. The experimental part of the paper was very detailed, including the reaction process of 1,3-Diphenylisobenzofuran(cas: 5471-63-6COA of Formula: C20H14O)
1,3-Diphenylisobenzofuran(cas: 5471-63-6) can be used as a fluorescent probe for detection of superoxide anion radical (O2−) inside the membrane lipid layer by DPBF fluorescence quenching method. 1,3-Diphenylisobenzofuran(DPBF) can be used to study the single crystal molecular structure and solution photophysical properties of DPBF.COA of Formula: C20H14O
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem