- Microwave synthesis of a photocatalytically active SnO-based material
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Tin(II) oxide nanopowder has been prepared through microwave processing of an ammoniacal Sn6O4(OH)4 suspension, and the effect of synthesis duration on the surface morphology, acid-base properties, and photocatalytic activity of the SnO has been examined. The results demonstrate that the surface morphology plays a key role in determining the photocatalytic activity of powder SnO for methyl orange photo-degradation.
- Kuznetsova,Pichugina,Kozik
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Read Online
- H-Bonding and charging mediated aggregation and emission for fluorescence turn-on detection of hydrazine hydrate
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In situ morphological transition and turn-on fluorescence of self-assembled NDI derivatives driven by hydrazine hydrate are realized through H-bonding and charging of aromatic building blocks, demonstrating a stimuli-responsive supramolecular system useful for visual detection of hydrazine hydrate.
- Zhou, Deyan,Wang, Yangyang,Jia, Jiong,Yu, Wenzhu,Qu, Baofeng,Li, Xia,Sun, Xuan
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- Stimuli responsive materials supported by orthogonal hydrogen and halogen bonding or i···alkene interaction
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Smart materials represent an elegant class of (macro)-molecules endowed with the ability to react to chemical/physical changes in the environment. Herein, we prepared new photo responsive azobenzenes possessing halogen bond donor groups. The X-ray structures of two molecules highlight supramolecular organizations governed by unusual noncovalent bonds. In azo dye I-azo-NO2, the nitro group is engaged in orthogonal H···O···I halogen and hydrogen bonding, linking the units in parallel undulating chains. As far as compound I–azo–NH–MMA is concerned, a non-centrosymmetric pattern is formed due to a very rare I···π interaction involving the alkene group supplemented by hydrogen bonds. The Cambridge Structural Database contains only four structures showing the same I···CH2=C contact. For all compounds, an19F-NMR spectroscopic analysis confirms the formation of halogen bonds in solution through a recognition process with chloride anion, and the reversible photo-responsiveness is demonstrated upon exposing a solution to UV light irradiation. Finally, the intermediate I–azo–NH2 also shows a pronounced color change due to pH variation. These azobenzenes are thereby attractive building blocks to design future multi-stimuli responsive materials for highly functional devices.
- Frangville, Pierre,Gelbcke, Michel,Kumar, Shiv,Meyer, Franck,Van Hecke, Kristof
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- ANISOTROPIC LIGHT ABSORPTION FILM AND LAMINATE
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An object of the invention is to provide an anisotropic light absorption film having both a high alignment degree and high light resistance, and a laminate provided using the anisotropic light absorption film. An anisotropic light absorption film according to the embodiment of the invention is formed from a composition having a first dichroic azo dye, a second dichroic azo dye, and a compound represented by Formula (I) or a polymer thereof, the first dichroic azo dye has a solution absorption maximum wavelength of 400 nm or greater and less than 550 nm, the second dichroic azo dye has a solution absorption maximum wavelength of 550 nm or greater and 750 nm or less, and the film has an arrangement structure of the first dichroic azo dye or an arrangement structure of the second dichroic azo dye therein.
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Paragraph 0259-0260
(2020/02/05)
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- COLORING COMPOSITION, DICHROIC DYE COMPOUND, LIGHT ABSORPTION ANISOTROPIC FILM, LAMINATE, AND IMAGE DISPLAY DEVICE
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A dichroic dye compound has an excellent alignment property when used in a light absorption anisotropic film, and has excellent solubility. A coloring composition contains the dichroic dye compound having a structure represented by Formula (1). In Formula (1), A and B represent a crosslinkable group, a and b are 0 or 1, and a+b is not less than 1. L1 and L2 represent a monovalent substituent, a single bond, or a divalent linking group. Each of Ar1 to Ar3 represents an aromatic hydrocarbon group or heterocyclic group. R1 to R3 represent a monovalent substituent. k represents an integer of 1 to 4. n1, n2, and n3 represent an integer of 0 to 4. In a case where k is 1, n1+n2+n3 is not less than 0, and in a case where k is not less than 2, n1+n2+n3 is not less than 1.
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Paragraph 0271-0272
(2019/03/14)
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- Phase Difference Plate, Laminated Polarizing Plate Using the Phase Difference Plate and Display Device Using the Phase Difference Plate
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The present invention provides a phase difference plate, which inhibits the reduction of transmissivity to the minimum, has a desirable birefringent wavelength dispersion and an excellent reflecting angle of view characteristics, and a less fluctuation of dichroic ratio even under high temperature and humidity, and shows an improved optical reliability, a laminated polarizing plate using the same and a display device of viewing angle. According to the present invention, a birefringence of andDelta;n, as a phase difference plate having a characteristic of negative dispersion which becomes larger as a measuring wavelength is longer in at least some wavelength area of visible ray areas, comprises a polymerizable liquid crystal composition and a polymer formed by polymerizing one or more polymerizable dichroic dyes. In addition, provided is a phase difference plate in which a liquid crystal compound is formed with a liquid crystal film aligned with a nematic hybrid.(AA) andDelta;n of embodiment 1(BB) Ideal graph(CC) Wavelength (nm)COPYRIGHT KIPO 2016
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Paragraph 0218; 0219
(2016/11/14)
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- Dynamic photo-control of kinesin on a photoisomerizable monolayer - Hydrolysis rate of ATP and motility of microtubules depending on the terminal group
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The reversibly and repeatedly altered gliding motility of microtubules driven by kinesin on the photoresponsive monolayer surface is studied. It was confirmed that an azobenzene monolayer surface needs to have free amino terminal groups for the successful dynamic control of the motility of microtubule. The surface of the azobenzene monolayer with terminal amino groups can dynamically control the ATP hydrolysis activity of kinesin which resulted in the change in motility of the microtubules.
- Rahim, M. K. Abdul,Kamei, Takashi,Tamaoki, Nobuyuki
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scheme or table
p. 3321 - 3331
(2012/06/04)
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