60095-57-0Relevant academic research and scientific papers
Guest Exchange by a Partial Energy Ratchet in Water
Yang, Xue,Cheng, Qian,Monnier, Valerie,Charles, Laurence,Karoui, Hakim,Ouari, Olivier,Gigmes, Didier,Wang, Ruibing,Kermagoret, Anthony,Bardelang, David
supporting information, p. 6617 - 6623 (2021/02/16)
Molecular machines are ubiquitous in nature and function away from equilibrium by consuming fuels to produce appropriate work. Chemists have recently excelled at mimicking the fantastic job performed by natural molecular machines with synthetic systems soluble in organic solvents. In efforts toward analogous systems working in water, we show that guest molecules can be exchanged in the synthetic macrocycle cucurbit[7]uril by involving kinetic traps, and in such a way as modulating energy wells and kinetic barriers using pH, light, and redox stimuli. Ditolyl-viologen can also be exchanged using the best kinetic trap and interfaced with alginate, thus affording pH-responsive blue, fluorescent hydrogels. With tunable rate and binding constants toward relevant guests, cucurbiturils may become excellent ring molecules for the construction of advanced molecular machines working in water.
Fluorescence enhancement of Di-p-tolyl viologen by complexation in cucurbit[7]uril
Freitag, Marina,Gundlach, Lars,Piotrowiak, Piotr,Galoppini, Elena
supporting information; experimental part, p. 3358 - 3366 (2012/04/10)
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
Redox Photochromism of Arylviologen Crystals
Kamogawa, Hiroyoshi,Sato, Shigeki
, p. 321 - 323 (2007/10/02)
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
