SDS of cas: 5471-63-6In 2020 ,《Lifetime and diffusion distance of singlet oxygen in air under everyday atmospheric conditions》 was published in Physical Chemistry Chemical Physics. The article was written by Wang, Kang-Kyun; Song, Sanggeun; Jung, Seung-Jin; Hwang, Jung-Wook; Kim, Min-Goo; Kim, Ji-Hyun; Sung, Jaeyoung; Lee, Jin-Kyu; Kim, Yong-Rok. The article contains the following contents:
Singlet oxygen is a toxic chem. but powerful oxidant, exploited in many chem. and biol. applications. However, the lifetime of singlet oxygen in air under atm. conditions is yet to be known. This has limited safe usage of singlet oxygen in air, despite being a strong antimicrobial agent with the unique property of relaxing to breathable oxygen after serving its purpose. Here, we solve this long-standing problem by combining exptl. and theor. research efforts; we generate singlet oxygen using a photosensitizer at a local source and monitor the time-dependent extent of singlet oxygen reaction with probe mols. at a detector, precisely controlling the detector distance from the source. To explain our exptl. results, we employ a theor. model that fully accounts for singlet oxygen diffusion, radiative and nonradiative relaxations, and the bimol. reaction with probe mols. at the detector. For all cases investigated, our model, with only two adjustable parameters, provides an excellent quant. explanation of the experiment From this anal., we extract the lifetime of singlet oxygen in the air to be 2.80 s at 23°C under 1 atm, during which time singlet oxygen diffuses about 0.992 cm. The correctness of this estimation is confirmed by a simple mean-first-passage time anal. of the maximum distance singlet oxygen can reach from the source. We also confirm the sterilization effects of singlet oxygen for distances up to 0.6-0.8 cm, depending on the bacteria strain in question, between the bacteria and the singlet oxygen source. In the part of experimental materials, we found many familiar compounds, such as 1,3-Diphenylisobenzofuran(cas: 5471-63-6SDS of cas: 5471-63-6)
1,3-Diphenylisobenzofuran(cas: 5471-63-6) is a fluorescent dye. 1,3-Diphenylisobenzofuran is the model compound in studies of singlet fission.SDS of cas: 5471-63-6
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem