Abstract
Both γ-1,t-2,t-3,c-4-tetraphenylcyclobutane (TPCB) and 2,4-dimethoxy-6-phenoxy-s-triazine (DMPT) can be used as chemical actinometers for laser pulses (less than 10 17 photons pulse −1) and steady state light in the 250–270 nm range. The photocycloreversion of TPCB occurs to give trans-stilbene with a reaction quantum yield of 0.29 ± 0.01 in methylcyclohexane or n-butyl chloride at room temperature. The photo-Fries rearrangement of DMPT takes place to give the corresponding ortho and para isomers; the reaction quantum yield for the ortho isomer is 0.12 in ethanol or 0.15 in methylcyclohexane. Actinometry with these compounds can be carried out easily using spectrophotometry.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Photochemistry & Photobiology, A: Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
