69112-08-9Relevant academic research and scientific papers
“Tetramethylsilanoviologen”: Synthesis, characterization, and hydrolysis of a Silolodipyridinium ion
Lee, David A.,Peloquin, Derek M.,Yapi, Edi W.,McMinn, Lucas A.,Merkert, Jon W.,Donovan-Merkert, Bernadette T.,Vitallo, Ashley Ariel,Peterson, Ashley R.,Jones, Daniel S.,Ceccarelli, Christopher,Schmedake, Thomas A.
, p. 358 - 363 (2017)
A silicon-bridged viologen has been synthesized by methylation of 4,4′-dipyridinodimethylsilole, and represents a new addition to the growing family of heteroatom bridged viologens. The dicationic species emits at 360?nm and exhibits two chemically reversible one electron reduction waves in acetonitrile at E1/2?(2+/1+)?=??0.829?V and E1/2?(1+/0)?=??1.307?V (versus Fc/Fc+). The UV–Vis spectrum for each of the three charge states is similar to the corresponding unbridged methyl viologen species. The silanoviologen is susceptible to ring-opening hydrolysis.
Narrow-Bandgap Chalcogenoviologens for Electrochromism and Visible-Light-Driven Hydrogen Evolution
Li, Guoping,Xu, Letian,Zhang, Weidong,Zhou, Kun,Ding, Yousong,Liu, Fenglin,He, Xiaoming,He, Gang
, p. 4897 - 4901 (2018)
A series of electron-accepting chalcogen-bridged viologens with narrow HOMO–LUMO bandgaps and low LUMO levels is reported. The optoelectronic properties of chalcogenoviologens can be readily tuned through heavy atom substitution (S, Se and Te). Herein, in situ electrochemical spectroscopy was performed on the proof-of-concept electrochromic devices (ECD). E-BnV2+ (E=Se, Te; BnV2+=benzyl viologen) was used for the visible-light-driven hydrogen evolution due to the strong visible-light absorption. Remarkably, E-BnV2+ was not only used as a photosensitizer, but also as an electron mediator, providing a new strategy to explore photocatalysts. The higher apparent quantum yield of Se-BnV2+ could be interpreted in terms of different energy levels, faster electron-transfer rates and faster formation of radical species.
Synthesis and properties of thieno[2,3-d:5,4-d']bisthiazoles and their oxidized derivatives: Thionyl chloride as a sulfurative ring-fusing reagent towards thiophene-based ring-fused heteroaromatic compounds
Wada, Ryuta,Kaga, Shigesaki,Kawai, Yasuhiro,Futamura, Kimitaka,Murai, Toshiaki,Shibahara, Fumitoshi
, (2021/02/21)
A new route to thiophene-ring-fused compounds with thionyl chloride as a sulfur source was developed. Use of an excess amount thionyl chloride directly gave the corresponding thiophene-ring-fused compound via further reduction of generated thiophene-S-oxide with excess thionyl chloride in some cases. One-pot reduction with tributylphosphine also gave thiophene-ring-fused compounds in good yields, and oxidation with NaClO·5H2O gave S-dioxides. In addition, one of the obtained thiazole-thiophene ring-fused compounds showed some unexpected mechanochromism behavior.
Side-Group-Mediated Mechanical Conductance Switching in Molecular Junctions
Ismael, Ali Khalid,Wang, Kun,Vezzoli, Andrea,Al-Khaykanee, Mohsin K.,Gallagher, Harry E.,Grace, Iain M.,Lambert, Colin J.,Xu, Bingqian,Nichols, Richard J.,Higgins, Simon J.
supporting information, p. 15378 - 15382 (2017/11/14)
A key target in molecular electronics has been molecules having switchable electrical properties. Switching between two electrical states has been demonstrated using such stimuli as light, electrochemical voltage, complexation and mechanical modulation. A
ORGANIC COMPOUND AND ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
-
Paragraph 0138-0141, (2017/10/26)
The present invention relates to an organic compound represented by chemical formula 1, an organic optoelectronic device including the organic compound, and a display device. In the chemical formula 1, X^1 to X^8, L^1, R^1, and A^1 are as described in the specification. One embodiment of the present invention provides an organic compound capable of implementing a high efficiency and long-lived organic optoelectronic device.COPYRIGHT KIPO 2017
3,7-diazadibenzophosphole oxide: A phosphorus-bridged viologen analogue with significantly lowered reduction threshold
Durben, Stefan,Baumgartner, Thomas
supporting information; experimental part, p. 7948 - 7952 (2011/10/05)
Phosphorus pulls its weight: Installation of a phosphoryl group as central bridge in the 4,4′-bipyridine scaffold introduces improved reduction responses that become even more pronounced in the corresponding phosphoryl-bridged methylviologen (see picture)
