686275-89-8Relevant academic research and scientific papers
Triplet–Triplet Annihilation Upconversion for Photocatalytic Hydrogen Evolution
Yu, Tianjun,Liu, Yanpeng,Zeng, Yi,Chen, Jinping,Yang, Guoqiang,Li, Yi
, p. 16270 - 16276 (2019)
The solar generation of hydrogen by water splitting provides a promising path for renewable hydrogen production and solar energy storage. Upconversion of low-energy photons into high-energy photons constitutes a promising strategy to enhance the light harvesting efficiency of artificial hydrogen production systems. In the present study, upconversion micelles are integrated with Cd0.5Zn0.5S to construct solar energy conversion systems. The upconversion micelle is employed to upconvert red photons to cyan photons. Cd0.5Zn0.5S is sensitized by upconverted cyan light to produce hydrogen, but not by incident red light without triplet–triplet annihilation upconversion (TTA-UC). The performance of the upconversion photocatalytic system was dramatically affected by the concentration of Cd0.5Zn0.5S and the irradiation intensity. This novel system was able to produce about 2.3 μL hydrogen after 5 h of red light (629 nm) irradiation (2.4 mW cm?2). The present study provides a candidate for applications using low-energy photons for solar hydrogen generation.
SUBSTITUTED XANTHINE DERIVATIVES
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Page/Page column 109, (2020/07/07)
The present invention relates to compounds of formula (I) a process for their manufacture, pharmaceutical compositions containing them and their use in therapy, particularly in the treatment of conditions having an association with TRPC5 containing ion channels. R1, R2, R3, R4 and R5 have meanings given in the description.
Acyclonucleosides bearing coplanar arylethynyltriazole nucleobases: Synthesis, structural analysis, and biological evaluation
Chen, Mimi,Zhou, Zhengwei,Suo, Yaxiong,Li, Mengyao,Yao, Jianhua,Peng, Ling,Xia, Yi
supporting information, p. 8509 - 8519 (2017/08/14)
Nucleoside derivatives are an important class of molecules in the search for bioactive compounds. In our continuing efforts to develop novel nucleoside analogs, we used the Sonogashira cross-coupling reaction to synthesize 1,2,4-triazole acyclonucleosides
Electrochemical Single-Molecule Transistors with Optimized Gate Coupling
Osorio, Henrry M.,Catarelli, Samantha,Cea, Pilar,Gluyas, Josef B. G.,Hartl, Franti?ek,Higgins, Simon J.,Leary, Edmund,Low, Paul J.,Martín, Santiago,Nichols, Richard J.,Tory, Joanne,Ulstrup, Jens,Vezzoli, Andrea,Milan, David C.,Zeng, Qiang
, p. 14319 - 14328 (2015/11/27)
Electrochemical gating at the single molecule level of viologen molecular bridges in ionic liquids is examined. Contrary to previous data recorded in aqueous electrolytes, a clear and sharp peak in the single molecule conductance versus electrochemical potential data is obtained in ionic liquids. These data are rationalized in terms of a two-step electrochemical model for charge transport across the redox bridge. In this model the gate coupling in the ionic liquid is found to be fully effective with a modeled gate coupling parameter, ξ, of unity. This compares to a much lower gate coupling parameter of 0.2 for the equivalent aqueous gating system. This study shows that ionic liquids are far more effective media for gating the conductance of single molecules than either solid-state three-terminal platforms created using nanolithography, or aqueous media.
