Photocycloreversion
WebJul 27, 2001 · Both photocyclization and photocycloreversion quantum yields of the diarylethene with nitronyl nitroxide radicals were found to increase with the increase in the π-conjugated chain length. Photoswitching of the magnetic interaction between two nitronyl nitroxide radicals was studied by means of ESR spectroscopy. The change in exchange ... WebJun 1, 2011 · It reveals that the photocycloreversion reaction heterogeneously took place in the shell of the diarylethene polymers upon irradiation at longer wavelength to be enhanced in proximity to the gold ...
Photocycloreversion
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WebA rewritable optical data storage material system by [2 + 2] photocycloreversion-photocycloaddition. / Li, Fengyu; Zhuang, Jun-Peng; Jiang, Guiyuan et al. In: Chemistry of … WebA rewritable optical data storage material system by [2 + 2] photocycloreversion-photocycloaddition. / Li, Fengyu; Zhuang, Jun-Peng; Jiang, Guiyuan et al. In: Chemistry of Materials, Vol. 20, No. 4, 2008, p. 1194 - 1196. Research output: Contribution to journal › Article › Research › peer-review
WebThe photocycloreversion reaction of a diarylethene polymer in the vicinity of silver nanoparticles was enhanced by 2–6 times relative to the reaction without the … Web[4 + 4] and [2 + 2] cycloadditions are unique reactions since they form and deform cycloadducts under irradiation due to their inherent reversible nature. Whereas promising for the field of recycling, these reactions usually suffer from two major shortcomings: long reaction durations (hours) and the requirement of high-intensity light (∼100 W/cm2), …
WebCycloreversion processes of three photochromic diarylethene derivatives with extremely low one-photon reaction yields (5.0 x 10(-5) to 1.5 x 10(-2)) were investigated by means of … WebExploration of photochemical reactions of N-trimethylsilylmethyl-substituted uracil, pyridone, and pyrrolidone derivatives
WebLaser Photolysis Studies on [2+2]-Photocycloreversion and Photoisomerization Reactions of trans - and cis -1,2-Di(1-pyrenyl)cyclobutane Dimers through Radical Ion Intermediates. Bulletin of the Chemical Society of Japan 1991, 64 (11) , 3402-3410.
WebTheoretical investigation on remote-control photocycloreversion of dithienylethene driven by azobenzene chromophores. Li. 1, Bai. 2, Zhang. 3. 2015. Spectrochimica Acta Part A: Molecular and Biomolecular Spectros. 4. 0. 0. 0. View full text Add to dashboard Buy / Rent full text. No abstract. grebe cottage horningWebSep 21, 2000 · Irradiation of a benzene solution containing methyl p-(1-pyrenylmethoxymethyl)cinnamate (1a) with a high-pressure Hg lamp through Pyrex filter stereoselectively gave an intramolecular (2π + 2π) photocycloadduct (2a) in an 83% yield in a site-selective manner at the 4,5-position of the pyrene ring. Similar irradiation of an ortho … florist near daytona beach flWebThe cycloreversion of 1,5-diphenylbicyclo[3.2.0]hept-6-ene (1) to 1,4-diphenyl-1,3-cycloheptadiene (2) has been studied by direct photolysis and radiolysis. The γ-radiolysis … grebe cottage isle of seilWebFeb 9, 1990 · On the other hand, intersystem crossing (ISC) as additional deactivation channel seems to be rather unlikely for a dissociation process on that short time scale, … grebe cottage bonchurchWebA novel thermally stable fluorescent molecular switch with [2 + 2] photocycloaddication and cycloreversion and its application in 2D and 3D optical data storage were demonstrated. The reversibility of the photochemical reaction in the solid state was effectively improved by introducing a dipole into the molecular system. florist near dearborn michiganWebJun 3, 2012 · In 1978 the photocycloreversion reaction was rediscovered by Rigaudy et al. for the endoperoxide of 9,10-diphenylanthracene (ref. 9). A short time later in 1979, independently Viallet et al., Srinivasan et al. and Brauer et al. reported the photochemical cycloreversion of different endoperoxides (refs. 10–12). Thus rearrangement and ... florist near downingtown paWebA Rewritable Optical Data Storage Material System by [2 + 2] Photocycloreversion−Photocycloaddition. Browse. Search. Explore more content. cm702351n_si_001. pdf (215.25 kB) File info Download file. Fullscreen. A Rewritable Optical Data Storage Material System by [2 + 2] Photocycloreversion−Photocycloaddition. grebe cottage wroxham