- Magnetic and Photochromic Properties of a Manganese(II) Metal-Zwitterionic Coordination Polymer
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The solvothermal reaction of Mn(ClO4)2, NaN3, and a rigid viologen-tethered tetracarboxylic acid (1,1′-bis(3,5-dicarboxyphenyl)-4,4′-bipyridinium chloride, [H4L]Cl2) led to a coordination polymer of f
- Gong, Teng,Yang, Xiao,Sui, Qi,Qi, Yan,Xi, Fu-Gui,Gao, En-Qing
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- A robust viologen and Mn-based porous coordination polymer with two types of Lewis acid sites providing high affinity for H2O, CO2 and NH3
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A novel porous coordination polymer [Mn(pc3)(H2O)2]·xH2O (3 2-). Dehy
- Leblanc,Mercier,Allain,Dul,Weber,Geoffroy,Bellat,Bezverkhyy
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- Fluorescence enhancement of Di-p-tolyl viologen by complexation in cucurbit[7]uril
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A viologen derivative, 1,1′-di-p-tolyl-(4,4′-bipyridine)-1, 1′-diium dichloride (DTV2+), was studied in solution and encapsulated in cucurbit[7]uril (CB7), a macrocyclic host. Upon encapsulation, DTV2+ exhibited dramatically enhanced
- Freitag, Marina,Gundlach, Lars,Piotrowiak, Piotr,Galoppini, Elena
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- Chemoresponsive Supramolecular Polypseudorotaxanes with Infinite Switching Capability
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Chemoresponsive supramolecular systems with infinite switching capability are important for applications in recycled materials and intelligent devices. To attain this objective, here a chemoresponsive polypseudorotaxane is reported on the basis of a bis(p
- Cao, Jiajun,Huang, Feihe,Li, Qi,Liu, Yang,Shangguan, Liqing,Wang, Feng,Wang, Zeju,Wu, Yitao,Zhu, Huangtianzhi
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- Radiochromic Hydrogen-Bonded Organic Frameworks for X-ray Detection
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Porous materials have been investigated as efficient photochromic platforms for detecting hazardous radiation, while the utilization of hydrogen bonded organic frameworks (HOFs) in this field has remained intact. Herein, two HOFs were synthesized through
- Khanpour, Mojtaba,Deng, Wen-Zhou,Fang, Zhi-Bin,Li, Yu-Lin,Yin, Qi,Zhang, An-An,Rouhani, Farzaneh,Morsali, Ali,Liu, Tian-Fu
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- Pseudo[n,m]rotaxanes of Cucurbit[7/8]uril and Viologen-Naphthalene Derivative: A Precise Definition of Rotaxane
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Rotaxane is a kind of classic supramolecule, which is usually constructed from a number of macrocycles and one axis molecule. Herein, we have expanded the supramolecular structure of [n]rotaxane to offer a precise definition of (pseudo)[n,m]rotaxane for a
- Zhang, Beilin,Dong, Yunhong,Li, Jie,Yu, Yang,Li, Chenyang,Cao, Liping
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- Variation of the viologen electron relay in cyclodextrin-based self-assembled systems for photoinduced hydrogen evolution from water
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The light-driven reduction of protons for the production of molecular hydrogen in multicomponent systems depends on electron relays such as viologens. We describe here the effect of viologens appended with guest moieties (adamantane or bile acid) on the e
- Contreras Carballada, Pablo,Mourtzis, Nikos,Felici, Marco,Bonnet, Sylvestre,Nolte, Roeland J. M.,Williams, Rene M.,De Cola, Luisa,Feiters, Martin C.
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- Luminescent coordination polymer with conjugated lewis acid sites for the detection of organic amines
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A stable three-dimensional coordination polymer, [Eu3(bcbp)3(NO3)7(OH)2]n (1) (H2bcbp2Cl = 1,1′-bis(4-carboxyphenyl)-(4,4′-bipyridinium) dichloride), was prepared by the solvothe
- Liu, Jian-Jun,Guan, Ying-Fang,Lin, Mei-Jin,Huang, Chang-Cang,Dai, Wen-Xin
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- Synthesis and thermotropic properties of new green electrochromic ionic liquid crystals
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Novel 1,1′-bis(4-alkylphenyl)-[4,4′-bipyridine]-1,1′-diium salts, with alkyl chains of different lengths (8, 10 and 14 carbon atoms) and with different counteranions (Cl-, NTf2-, OTf-, OTs-, PF6
- Veltri, Lucia,Cavallo, Gabriella,Beneduci, Amerigo,Metrangolo, Pierangelo,Corrente, Giuseppina Anna,Ursini, Maurizio,Romeo, Roberto,Terraneo, Giancarlo,Gabriele, Bartolo
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- Near-infrared photothermal conversion of stable radicals photoinduced from a viologen-based coordination polymer
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Upon simple UV-visible irradiation, a viologen-based coordination polymer was transformed to a highly stable radical, protected against quenching by a densely packed structure. The photo-generated radical exhibited a remarkable near-infrared (NIR) phototh
- Wang, Shanshan,Li, Shuning,Xiong, Junyu,Lin, Zhengguo,Wei, Wei,Xu, Yanqing
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- Constructing POSS and viologen-linked porous cationic frameworks induced by the Zincke reaction for efficient CO2 capture and conversion
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POSS and viologen-linked porous cationic frameworks (V-PCIF-X, X = Cl, Br) are constructed via the Zincke reaction between octa(aminophenyl)silsesquioxane and viologen linkers. The typical V-PCIF-Br has a high surface area with abundant ionic sites, micro
- Chen, Guojian,Huang, Xiaohui,Zhang, Yadong,Sun, Mengyao,Shen, Jie,Huang, Rui,Tong, Minman,Long, Zhouyang,Wang, Xiaochen
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- Lanthanide coordination polymers of viologen carboxylic acid: Crystal structures and luminescence response tuning
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In the context, using solvo-thermal method, three isostructural lanthanide coordination polymers with viologen as linker ([m-H2bpybdc], m-bpybdc = 1,1′–bis(3-carboxyphenyl)-4,4′-bipyridinium), whose basic frameworks are formulated as [Ln(m-bpyb
- Zhao, Jing,Qu, Xianglong,Yan, Bing
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- Anion-induced ionic liquid crystals of diphenylviologens
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Two series of ionic liquid crystals derived from diphenylviologens, 1 and 2, were prepared and their photophysical and electrochemical properties were also investigated. The crystallographic data of two single crystals, 1-RSO3 (n = 10) and 2-BF
- Wang, Ren-Tzong,Lee, Gene-Hsiang,Lai, Chung K.
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- Supramolecular Open-Framework of a Bipyridinium-Carboxylate Based Copper Complex with High and Reversible Water Uptake
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The rigid zwitterionic ligand 1,1′-bis(4-carboxylatphenyl)-(4,4′-bipyridinium) (pc1) and copper(II) ions give rise to a linear complex [Cu(pc1)2(H2O)4]2+, which self assembles in a pseudo tetragonal supramolecul
- Leroux, Maxime,Weber, Guy,Bellat, Jean-Pierre,Bezverkhyy, Igor,Mercier, Nicolas
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- Electron-Triggered Metamorphism in Palladium-Driven Self-Assembled Architectures
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A metal-induced self-assembly strategy is used to promote the π-dimerization of viologen-based radicals at room temperature and in standard concentration ranges. Discrete box-shaped 2:2 (M:L) macrocycles or coordination polymers are formed in solution by
- Kahlfuss, Christophe,Chowdhury, Shagor,Carreira, Adérito Fins,Grüber, Raymond,Dumont, Elise,Frath, Denis,Chevallier, Floris,Eric-Saint-Aman,Bucher, Christophe
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- Cucurbit[10]uril-Based [2]Rotaxane: Preparation and Supramolecular Assembly-Induced Fluorescence Enhancement
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As the cucurbit[n]uril (CB[n]) homologue with the largest cavity size, cucurbit[10]uril (CB[10]) can encapsulate big guests to form interesting host-guest complexes/assemblies. Herein, we report the preparation and fluorescence properties of CB[10]-based
- Yu, Yang,Li, Yawen,Wang, Xiaoqing,Nian, Hao,Wang, Le,Li, Jie,Zhao, Yanxia,Yang, Xiran,Liu, Simin,Cao, Liping
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- Porous Coordination Polymer Based on Bipyridinium Carboxylate Linkers with High and Reversible Ammonia Uptake
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The zwitterionic bipyridinium carboxylate ligand 1,1′-bis(4-carboxyphenyl)-4,4′-bipyridinium (pc1) in the presence of cadmium chloride affords novel porous coordination polymers (PCPs): [Cd4(pc1)3Cl6]·CdCl4·gues
- Leroux, Maxime,Mercier, Nicolas,Allain, Magali,Dul, Marie-Claire,Dittmer, Jens,Kassiba, Abdel Hadi,Bellat, Jean-Pierre,Weber, Guy,Bezverkhyy, Igor
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- An anthracene extended viologen-incorporated ionic porous organic polymer for efficient aerobic photocatalysis and antibacterial activity
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A new conjugated ionic porous organic polymer (AN-POP), incorporated with anthracene-extended viologen, has been rationally designed and prepared to explore its dual functions in photocatalytic oxidation and bacterial killing. Compared with its anthracene
- Liu, Lu,Qu, Wei-Dong,Dong, Kai-Xun,Qi, Ye,Gong, Wei-Tao,Ning, Gui-Ling,Cui, Jing-Nan
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supporting information
p. 3339 - 3342
(2021/04/07)
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- Water-Soluble Cyclophanes Synthesized via the Zincke Reaction
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By taking advantage of the Zincke reaction, we successfully synthesized three macrocycles, each of which contains two bipyridinium units as the electron acceptors. Two of them contain sp2-hybridized atoms exclusively in the ring frameworks, whi
- Chen, Binbin,Chen, Yixin,Li, Hao,Tong, Lu,Wu, Guangcheng,Zeng, Fei,Zhu, Dingsheng
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p. 9343 - 9347
(2021/12/17)
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- Novel viologen compound and preparation thereof
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The invention relates to novel viologen compounds and a preparation method thereof. Specifically, the invention provides a type of compounds with a structure shown by a formula I. The definitions of the groups are as in the specifications. The compounds of the formula I provided by the invention can be widely applied in the aspects of soft matter material construction, photoelectric materials, and solar cells.
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- Novel symmetric purpurine compound and preparation method and applications thereof
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The invention discloses a novel symmetric purpurine compound, which is composed of an acceptor 4,4'-dipyridine, different donor groups, and different counter anions. The structure of the compound is shown in the description. The invention also discloses a
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Paragraph 0041-0043
(2020/03/09)
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- Thermotropic Liquid-Crystalline and Light-Emitting Properties of Bis(4-aalkoxyphenyl) Viologen Bis(triflimide) Salts
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A series of bis(4-alkoxyphenyl) viologen bis(triflimide) salts with alkoxy chains of different lengths were synthesized by the metathesis reaction of respective bis(4-alkoxyphenyl) viologen dichloride salts, which were in turn prepared from the reaction of Zincke salt with the corresponding 4-n-alkoxyanilines, with lithium triflimide in methanol. Their chemical structures were characterized by 1H and 13C nuclear magnetic resonance spectra and elemental analysis. Their thermotropic liquid-crystalline (LC) properties were examined by differential scanning calorimetry, polarizing optical microscopy, and variable temperature X-ray diffraction. Salts with short length alkoxy chains had crystal-to-liquid transitions. Salts of intermediate length alkoxy chains showed both crystal-to-smectic A (SmA) transitions, Tms, and SmA-to-isotropic transitions, Tis. Those with longer length of alkoxy chains had relatively low Tms at which they formed the SmA phases that persisted up to the decomposition at high temperatures. As expected, all of them had excellent thermal stabilities in the temperature range of 330-370 ?C. Their light-emitting properties in methanol were also included.
- Agra-Kooijman, De?a M.,Al-Karawi, Muhammed Kareem M.,Bhowmik, Pradip K.,Chang, Anthony,Chen, Si L.,Cortez, Raymond G.,Dizon, Erenz J.,Fisch, Michael R.,Gutierrez, Bryan,Han, Haesook,Ho, Andy,Killarney, Shane T.,Kim, Jongin,Kumar, Satyendra,Mandal, Hari D.,Mendez, Klarissa,Principe, Ronald Carlo G.,Sharpnack, Lewis
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- Purpurine derivative electrochromic material and preparation method thereof
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The invention discloses a purpurine derivative electrochromic material and a preparation method thereof. The preparation method comprises the steps that 4,4'-dipyridine is adopted as a raw material and undergoes a Menschutkin reaction with 1-chloro-2,4-di
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Paragraph 0008; 0055-0067; 0080-0092; 0104-0116; 0128-0140
(2019/10/01)
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- A single-crystal-to-single-crystal transformation affording photochromic 3D MORF crystals
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Metal-organic framework (MOF) type crystals in which rigid, viologen-based pillars are surrounded by cucurbit[7]uril (CB[7]) macrocycles are described. These metal-organic rotaxane frameworks (MORF) are obtained by desolvation of a crystal precursor featu
- Yang, Xue,Giorgi, Michel,Karoui, Hakim,Gigmes, Didier,Hornebecq, Virginie,Ouari, Olivier,Kermagoret, Anthony,Bardelang, David
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supporting information
p. 13824 - 13827
(2019/11/21)
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- Mechanism unravelling for ultrafast and selective 99TcO4? uptake by a radiation-resistant cationic covalent organic framework: a combined radiological experiment and molecular dynamics simulation study
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99Tc is one of the most problematic fission products in the nuclear fuel cycle owing to its large inventory in used nuclear fuel, long half-life, potential radiation hazard, high environmental mobility of its major species 99TcO
- He, Linwei,Liu, Shengtang,Chen, Long,Dai, Xing,Li, Jie,Zhang, Mingxing,Ma, Fuyin,Zhang, Chao,Yang, Zaixing,Zhou, Ruhong,Chai, Zhifang,Wang, Shuao
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p. 4293 - 4305
(2019/04/17)
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- Redox-Responsive Covalent Organic Nanosheets from Viologens and Calix[4]arene for Iodine and Toxic Dye Capture
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Owing to their chemical and thermal stabilities, high uptake capacities, and easy recyclability, covalent organic polymers (COPs) have shown promise as pollutant sponges. Herein, we describe the use of diazo coupling to synthesize two cationic COPs, COP1
- Skorjanc, Tina,Shetty, Dinesh,Sharma, Sudhir Kumar,Raya, Jesus,Traboulsi, Hassan,Han, Dong Suk,Lalla, Jayesh,Newlon, Ryan,Jagannathan, Ramesh,Kirmizialtin, Serdal,Olsen, John-Carl,Trabolsi, Ali
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supporting information
p. 8648 - 8655
(2018/06/26)
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- Viologen-modified electrodes for protection of hydrogenases from high potential inactivation while performing H2 oxidation at low overpotential
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In this work we present a viologen-modified electrode providing protection for hydrogenases against high potential inactivation. Hydrogenases, including O2-tolerant classes, suffer from reversible inactivation upon applying high potentials, whi
- Oughli, Alaa A.,Vélez, Marisela,Birrell, James A.,Schuhmann, Wolfgang,Lubitz, Wolfgang,Plumeré, Nicolas,Rüdiger, Olaf
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p. 10685 - 10691
(2018/08/17)
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- The synthesis of a rigid conjugated viologen and its cucurbituril pseudorotaxanes
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A linear viologen (bis[4-(4-pyridinyl)phenyl] viologen, BPPV) characterized by a fully-conjugated structure was synthesized through Zinke reaction. BPPV consists of a unique linear sexiaryl structure and is apt to be encapsulated by cucurbit[n]uril (CB[n]
- Song, Yingfeng,Huang, Xinghua,Hua, Haojie,Wang, Qiaochun
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p. 229 - 235
(2016/11/09)
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- Novel viologen derivatives for electrochromic ion gels showing a green-colored state with improved stability
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We successfully synthesized a novel viologen derivative (1,1′-bis(3-fluoro-4-(trifluoromethyl)phenyl)-4,4′-bipyridinium bis(trifluoromethylsulfonyl)imide, TFMFPhV(TFSI)2) exhibiting a green-colored state. We selected cyanophenyl viologen (CNPhV2+), a conventional electrochromic (EC) chromophore with a green color indication, to compare EC performance. Ion gels consisting of poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMI][TFSI]) were employed as a solid-state electrolyte for EC devices (ECDs). In comparison to CNPhV2+-containing devices, the ECDs with TFMFPhV2+ showed higher transmittance contrast, larger coloration efficiency, faster coloration and bleaching responses, and better coloration/bleaching operational stability. Cyclic voltammetry revealed that the more stable redox behavior of TFMFPhV2+ is the origin of the outstanding ECD performance.
- Oh, Hwan,Seo, Dong Gyu,Yun, Tae Yong,Lee, Seong Been,Moon, Hong Chul
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p. 490 - 495
(2017/10/13)
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- Redox tunable viologen-based porous organic polymers
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The use of an organic donor-acceptor polymer containing a viologen electron acceptor and triarylamine electron donor as a platform in the development of multifunctional materials is presented. The highly robust porous organic polymer (POP) system allows f
- Hua, Carol,Chan, Bun,Rawal, Aditya,Tuna, Floriana,Collison, David,Hook, James M.,D'Alessandro, Deanna M.
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supporting information
p. 2535 - 2544
(2016/07/14)
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- NOVEL COMPOUND, METHOD OF MANUFACTURING THE COMPOUND, AND CHEMICAL SENSOR INCLUDING THE COMPOUND
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The present invention relates to a novel compound which can detect an amine-based compound through color change and change of fluorescence intensity, to a manufacturing method thereof, and to a chemical sensor comprising the compound. The novel compound i
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Paragraph 0066-0070
(2017/01/09)
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- ELECTROCHEMICAL ENERGY STORAGE DEVICES
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An energy storage device includes a cathodic material in an activated state; and an anodic material in an activated state; wherein: the cathodic material is a viologen covalently attached to, or confined within, a first polymer matrix, the first polymer m
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Paragraph 0048; 0049
(2016/03/04)
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- CRYSTALLINE BIPYRIDINIUM RADICAL COMPLEXES AND USES THEREOF
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Described herein are methods of generating 4,4′-bipyridinium radical cations (BIPY?+), and methods for utilizing the radical-radical interactions between two or more BIPY?+ radical cations that ensue for the creation of novel materia
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Paragraph 0104-0105
(2015/07/15)
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- The construction of rigid supramolecular polymers in water through the self-assembly of rod-like monomers and cucurbit[8]uril
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Two new types of supramolecular polymers have been constructed via the self-assembly of rigid rod-like monomers and cucurbit[8]uril (CB[8]) in water. These supramolecular polymers possessed rigid backbones and further aggregated into stick-like bunched fi
- Lin, Feng,Zhan, Tian-Guang,Zhou, Tian-You,Zhang, Kang-Da,Li, Guang-Yu,Wu, Jian,Zhao, Xin
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supporting information
p. 7982 - 7985
(2014/07/08)
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- HIV-1 X4 activities of polycationic Viologen based dendrimers by interaction with the chemokine receptor CXCR4: Study of structure-activity relationship
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A series of viologen based dendrimers with polycationic scaffold carrying 10, 18, 26, 42, and 90 charges per molecule were used to determine the structure-activity relationship (SAR) with regard to HIV-1 inhibitory activity. The studies involved five comp
- Asaftei, Simona,Huskens, Dana,Schols, Dominique
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supporting information
p. 10405 - 10413
(2013/02/23)
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- "viologen"dendrimers as antiviral agents: The effect of charge number and distance
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A series of "viologen"derivatives (4,4′-bipyridinium salts) carrying between 1 and 90 charges per molecule have been prepared and investigated for their activity against human immunodeficiency virus (HIV), herpes simplex virus (HSV), vesicular stomatitis, Punta Toro virus, Sindbis virus, Reovirus, and respiratory syncytial viruses. In general, most of the compounds showed good activities against HIV-1 (strain IIIB). In particular, compound 36 exhibited the highest in vitro activity and selectivity index against HIV-1 (strain IIIB) (EC50 = 0.26 ± 0.08 μM, SI = 75.7) in MT-4 cells. The results imply that the antiviral activity requires an optimal number and distance of the positive charges.
- Asaftei, Simona,De Clercq, Erik
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supporting information; experimental part
p. 3480 - 3488
(2010/09/04)
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- PROCESS FOR PRODUCING BIPYRIDINIUM COMPOUND
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A process for producing a bipyridinium compound represented by formula (4), the process comprises: reacting a bipyridine which may have a substituent with a halogenated (hetero)aryl compound represented by formula (1), so as to produce a N,N'-bis((hetero)
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Page/Page column 26-27
(2010/02/14)
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- Metal coordination complexes composed of photo-electrochemically active ligands
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N-arylpyridinium molecules, 4,6-bis(4,4′-bipyridine-1-yl)-pyrimidine (1) and 3,6-bis(4,4′-bipyridine-1-yl)-pyridazine (2) and 3-pyridylviologen (3) were designed and synthesized as photoelectrochemically active ligands for coordination polymer assemblies
- Matsushita, Michio M.,Morikawa, Masanari,Kawai, Tadashi,Iyoda, Tomokazu
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p. 405/87 - 414/96
(2007/10/03)
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- Redox Photochromism of Arylviologen Crystals
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Reversible color development induced by near UV light (photochromism) was observed for some crystalline powder of 1,1'-diaryl-4,4'-bipyridinium bis(p-toluenesulfonate).Redox mechanism by the electron transfer from the sulfonate anion to viologen dication
- Kamogawa, Hiroyoshi,Sato, Shigeki
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p. 321 - 323
(2007/10/02)
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- Method of preparing an N,N'-bis(p-cyanophenyl)-4,4'-bipyridylium salt
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Salts of N,N'-bis(p-cyanophenyl)-4,4'-bipyridylium are prepared by contacting an N,N'-bis(2,4-dinitrophenyl)-4,4'-bipyridylium salt with p-cyano-aniline in an inert polar medium.
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