Triphenylsulfonium cation
WebNov 7, 2013 · Herein we introduce the all-organic triphenylsulfonium (TPS) salts cathode interfacial layers (CILs), deposited from their methanolic solution, as a new simple strategy for circumventing the use... WebThe triphenylsulfonium cation was varied by adding a substituent group to the para position with respect to the sulfonium-phenyl bond. (a) Hydrogen (H), (b) methyl- (H3C), (c) fluoro- (F), and (d) iodo- (I) were the substituent groups studied. A triflate anion was kept consistent for all four of these PAGs.
Triphenylsulfonium cation
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Webnylsulfonium cation and its various congeners have been developed,9 one which is quite convenient, and which was used in the present work, is that shown in Scheme 1.10 As is apparent from the scheme, triarylsulfonium cations prepared in this fashion are (by default) isolated as TfO salts. Those of the triphenylsulfonium and diphenyl ... WebOct 2, 2012 · On one hand, the anion displacement influences the energetics at the polymer/anode interface facilitating hole injection, whereas, on the other hand, the triphenylsulfonium cations act as...
WebSep 17, 2013 · Triphenylsulfonium salts addition in the emitting layer of polymer light emitting diodes (PLEDs) has been shown to be beneficial for charge injection and transport due to both ionic effects and π-conjugation in the phenyl rings of the cation. In some cases the emission profile can be also modified through an electroplex formation. Herein we … WebJul 1, 2024 · Cationic photopolymerization was first discovered in the late 1970’s by Crivello and colleagues when onium salts (triphenylsulfonium or diaryliodonium) under UV irradiation were found to generate acid solutions capable of initiating polymerization of a …
WebJul 16, 2016 · Triphenylsulfonium triflate (TPS-tf; Midori Kagaku) was used as received. Condensation of the sample was carried out in a vacuum oven at 60–90 °C. Highly concentrated sample solutions of PHS (>50 wt%) used for pulse radiolysis were orange to brown but remained transparent in the near-infrared region. Web37 The triphenylsulfonium cation of 3-Ph3S is pointing away from the anion showing bouring molecule in the unit cell (Fig. 1B). However, this is likely attributed to the molecular packing effects of 3-Ph3S. To probe whether or not borane release from ion pairs 1-Ph3S, 1-Ph2I and 3-Ph3S was truly induced by absorption of a
WebSpecifically, the TfO − salt of the sulfonium cation was suspended in water and heated to near boiling. Methanol was then added to the rapidly stirred mixture until the salt dissolved or was nearly so. Then, to this was added a pre-made solution of KTf 2 N or LiBETI in water.
An example due to photodissociation is triphenylsulfonium triflate. This colourless salt consists of a sulfonium cation and the triflate anion. Many related salts are known including those with other noncoordinating anions and those with diverse substituents on the phenyl rings. The triphenylsulfonium salts absorb at a wavelength of 233 nm, which induces a dissociation of one of the three phenyl rings. This dissociated phenyl radical then re-combines with remaining dip… le site j hallydayWebThe triphenylsulfonium cation embedded in polymer films is a key molecule in photolithography for the generation of an acid. To determine the relevance of the film studies in industrial processes, additional experiments were performed in a … le sully\\u0027s vallon en sullyWebMar 19, 2024 · Density functional theory modeling of the PAG triphenylsulfonium perfluoro-1-butanesulfonate (TPS Nf) shows that if an electron is trapped by the triphenylsulfonium cation, the decomposition of... le starke pekin ilWebOct 27, 2024 · The products from the 193 nm irradiation of triphenylsulfonium nonaflate (TPS) embedded in a poly(methyl methacrylate) (PMMA) film have been characterized. The analysis of the photoproduct formation was performed using chromatographic … le studio saison 7WebOct 27, 2024 · The products from the 193 nm irradiation of triphenylsulfonium nonaflate (TPS) embedded in a poly (methyl methacrylate) (PMMA) film have been characterized. The analysis of the photoproduct formation was performed using chromatographic techniques including HPLC, GPC and GC-MS as well as UV-vis and NMR spectroscopic methods. fs300a g3/4WebRadiation-induced cationic polymerization of styrene was studied in methylene chloride in the presence of triphenylsulfonium hexafluorophosphate. Acceleration in polymerization and an increase in molecular weight at a low temperature (- 78/sup 0/C) were observed in … fs19 kinze 850WebPhotoinitiated cationic polymerization by photosensitization of diphenyliodonium and triphenylsulfonium salts is shown to proceed by two distinct electron transfer process: (1) direct electron transfer from excited-state photosensitizers and (2) indirect electron transfer from photogenerated radicals. fs5792 amazon