Category: 219537-97-0

Sun, Cai-Li published the artcileSupramolecular Polymer-Based Fluorescent Microfibers for Switchable Optical Waveguides, COA of Formula: C15H14Cl2S2, the publication is ACS Applied Materials & Interfaces (2018), 10(31), 26526-26532, database is CAplus and MEDLINE.

We report the switchable optical waveguide microfibers based on fluorescent supramol. polymer for the first time. The pillar[5]arene-based supramol. polymeric microfibers were prepared easily from the viscous solution of bispillar[5]arene host (bisP5A) and diphenylanthracene-derived guest (GD). The resulting microfibers act as an active optical waveguide material with long propagation distance (400 μm) and low optical propagation loss (0.01 dB/μm). When photoresponsive dithienylethene-derived guest (GDTE) was added, the resulting ternary microfibers show switchable optical waveguide by the noninvasive control of UV/vis light with negligible fatigue over four cycles. This convenient preparation method is also applied for the quadruple-hydrogen-bonded fluorescent supramol. polymeric microfibers which imply good light propagation property with an optical loss coefficient of 0.02 dB/μm.

ACS Applied Materials & Interfaces published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C12H14BNO2, COA of Formula: C15H14Cl2S2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Yao, Shengxin published the artcileLow-symmetry porphyrin analogues with flexible open-form dithienylethene moieties: Intense near IR Q bands, SDS of cas: 219537-97-0, the publication is Dyes and Pigments (2021), 109440, database is CAplus.

Two low-symmetry porphyrinoids with a dithienylethene (DTE) moiety incorporated into the core macrocycle, that contain either a CHO or a bridging Me ether group, have been serendipitously synthesized through a Rothemund condensation reaction. X-ray crystal structures demonstrate that CHO and bridging Me ether groups on the DTE moiety changes the conformation of the macrocycle and significantly influences the relative energies of the frontier orbitals of the porphyrinoid π-system and results in a remarkable enhancement and broadening of the Q bands in the 450-800 nm region compared to those of conventional tetrapyrrolic porphyrins. The introduction of a DTE moiety provides an effective strategy for achieving the intense near-IR region absorption that is required for many of the practical applications of porphyrinoids, through a disruption of the macrocyclic π-system that is similar to that of naturally occurring corrins.

Dyes and Pigments published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C19H14O2, SDS of cas: 219537-97-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Coudret, Christophe published the artcileElectrochemical oxidation mechanism of photochromic switches: electrodimerisation, ring closure or ring opening?, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Portugaliae Electrochimica Acta (2007), 25(1), 89-101, database is CAplus.

Simple photochromic dithienylethylenes with either perfluoro or perhydro cyclopentene ring, and a variety of substituents were prepared and their electrochem. behavior explored by cyclic voltammetry. All present 2 electron irreversible oxidation waves in their open form, but the radical cation of the open isomers can follow 3 different reaction pathways: dimerization, ring closure, or ring reopening. Whereas the chloro derivative follows a dimerization mechanism (EC₂E mechanism), the phenylthio substituted compound displays an efficient oxidative ring closure (ECE or DISP1 mechanism). Interesting electrochromic behavior is associated with this compound, a redox process occurring in the range 0.5-1.5 V is observed by monitoring the absorption species changes (colored species) in function of the applied potential. Also, electrochromic properties are also found in the corresponding ring closed isomers. Depending on the substituents on the thiophene ring and the perfluoro or perhydro cyclopentene ring, open isomers can be obtained from oxidation (chem. or electrochem.) of the corresponding ring closed isomers via EC mechanism. These observations should be taken into account for the potential design of 3-state conjugated systems and photoelec. mol. switching.

Portugaliae Electrochimica Acta published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Park, Jihye published the artcilePhotochromic metal-organic frameworks: Reversible control of singlet oxygen generation, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Angewandte Chemie, International Edition (2015), 54(2), 430-435, database is CAplus and MEDLINE.

The controlled generation of singlet oxygen is of great interest owing to its potential applications including industrial wastewater treatment, photochem., and photodynamic therapy. Two photochromic metal-organic frameworks, PC-PCN and SO-PCN, have been developed. A photochromic reaction has been successfully realized in PC-PCN while maintaining its single crystallinity. In particular, as a solid-state material which inherently integrates the photochromic switch and photosensitizer, SO-PCN has demonstrated reversible control of ¹O₂ generation. Addnl., SO-PCN shows catalytic activity towards photooxidation of 1,5-dihydroxynaphthalene.

Angewandte Chemie, International Edition published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Steenbock, Torben published the artcilePhotoswitching Behavior of a Cyclohexene-Bridged versus a Cyclopentene-Bridged Dithienylethene System, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is ChemPhysChem (2015), 16(7), 1491-1501, database is CAplus and MEDLINE.

Photoswitching is an intriguing way of incorporating functionality into mols. or their subunits. Dithienylethene switches are particularly promising, but have so far mostly been studied with five-membered ring (cyclopentenyl) backbones. We aim at comparing the switching properties of backbones with five and six carbon atoms in the ring. A major advantage is that cyclohexenyl rings offer new options for chiral functionalization. A slight change in the reaction conditions of a McMurry ring closure reaction leads to the formation of dithienyl derivatives with a cyclohexene backbone in reasonable yield. D. functional theory calculations were carried out, demonstrating the similarity of both compounds Exptl. results confirm the theor. outcomes.

ChemPhysChem published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C14H26O2, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Mahvidi, S. published the artcileInfluence of protonation on the photochromic behavior, phase transfer and thermal stability of phenylamine-substituted diarylethenes, Category: chlorides-buliding-blocks, the publication is Progress in Color, Colorants and Coatings (2020), 13(2), 105-119, database is CAplus.

This paper examines the role of protonation on the photochromic reactions of multi-responsive Ph amine diarylethene derivatives (PA-DAEs). Reversible protonation and deprotonation provide a secondary stimulus for controlling the properties of light-responsive PA-DAEs, including solubility and thermal stability. For this reason, the phenylamine substituted DAEs were synthesized using a novel and efficient microwave-assisted synthetic route. Steady-state spectroscopy results indicated that the photocyclization and photocycloreversion reactions were reversible at different pH values. Even though, the acidic condition caused red-shift of the visible light absorption bands and generated a new absorption band at near-IR to IR region in the closed-ring structure but made blue-shift in the absorption spectra of the open-ring isomers. Also, it was showed that the excess amount of proton locked back the photochromic reaction. Results also indicated that the protonated closed-ring isomers of PA-DAEs are hydrophilic, whereas the deprotonated forms and protonated open-ring forms are hydrophobic. In addition to photoswitching and solubility of PA-DAEs under irradiation at different light wavelengths, the thermal stability of P-type PA-DAEs was also monitored in the presence of trifluoroacetic acid at different temperatures as external stimuli.

Progress in Color, Colorants and Coatings published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Bonacchi, Sara published the artcileSurface-Induced Selection During In Situ Photoswitching at the Solid/Liquid Interface, Category: chlorides-buliding-blocks, the publication is Angewandte Chemie, International Edition (2015), 54(16), 4865-4869, database is CAplus and MEDLINE.

Here we report for the first time a submolecularly resolved scanning tunneling microscopy (STM) study at the solid/liquid interface of the in situ reversible interconversion between two isomers of a diarylethene photoswitch, i.e., open and closed form, self-assembled on a graphite surface. Prolonged irradiation with UV light led to the in situ irreversible formation of another isomer as byproduct of the reaction, which due to its preferential physisorption accumulates at the surface. By making use of a simple yet powerful thermodn. simulation, physicochem. we provide a quant. description for the observed surface-induced selection of one isomeric form.

Angewandte Chemie, International Edition published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wang, Ling published the artcileLuminescence-Driven Reversible Handedness Inversion of Self-Organized Helical Superstructures Enabled by a Novel Near-Infrared Light Nanotransducer, Product Details of C15H14Cl2S2, the publication is Advanced Materials (Weinheim, Germany) (2015), 27(12), 2065-2069, database is CAplus and MEDLINE.

Stimuli-directing self-organized supramol. architectures with desired properties provide the necessary thrust in the nanofabrication of intelligent mol. materials and devices. There have been only a few reports on using chiral photoresponsive mols. such as chiral azobenzenes,overcrowded alkenes,and chiral diarylethen as dopants for light-induced handedness inversion upon UV or visible-light irradiation After investigating the NIR-light-directed photoisomerization process of chiral switch (S, S)-8 and core-multishell nanotransducers in organic solvent, we examined the performance of the self-organized helical superstructures incorporated with the mol. switch and nanotransducers. Novel core-multishell UCNPs with dual wavelength NIR light transduction properties were rationally designed and synthesized by judiciously distributing the Tmn and Er3+ emissive ions in appropriate layers to furnish UV and visible luminescence on demand upon NIR irradiation at different wavelengths.

Advanced Materials (Weinheim, Germany) published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C8H11BO2, Product Details of C15H14Cl2S2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Simeth, Nadja A. published the artcilePhotoswitchable architecture transformation of a DNA-hybrid assembly at the microscopic and macroscopic scale, COA of Formula: C15H14Cl2S2, the publication is Chemical Science (2022), 13(11), 3263-3272, database is CAplus and MEDLINE.

Mol. recognition-driven self-assembly employing single-stranded DNA (ssDNA) as a template is a promising approach to access complex architectures from simple building blocks. Oligonucleotide-based nanotechnol. and soft-materials benefit from the high information storage d., self-correction, and memory function of DNA. Here we control these beneficial properties with light in a photoresponsive biohybrid hydrogel, adding an extra level of function to the system. An ssDNA template was combined with a complementary photo-responsive unit to reversibly switch between various functional states of the supramol. assembly using a combination of light and heat. We studied the structural response of the hydrogel at both the microscopic and macroscopic scale using a combination of UV-vis absorption and CD spectroscopy, as well as fluorescence, transmission electron, and at. force microscopy. The hydrogels grown from these supramol. self-assembly systems show remarkable shape-memory properties and imprinting shape-behavior while the macroscopic shape of the materials obtained can be further manipulated by irradiation

Chemical Science published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C7H7ClN2, COA of Formula: C15H14Cl2S2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Guirado, Gonzalo published the artcileElectrochemical Remote Control for Dithienylethene-Ferrocene Switches, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Journal of Physical Chemistry C (2007), 111(6), 2770-2776, database is CAplus.

The electrochromic properties of dithienylethene derivatives is a field of great importance and interest. In this manuscript the authors describe a potential mol. remote control system, which can be electrochem. triggered. Diferrocenyl compounds containing a diethylenene photoelectrochromic core with perhydro- and perfluorocyclopentene ring were prepared to induce a change in the chromic properties via an intramol. electron-transfer reaction from the redox group to the photochromic core. The electrochem. behavior of open and closed isomers was thoroughly studied using photochem., electrochem., and spectroelectrochem. techniques. The 1st redox couple was typically assigned to the ferrocene for the open isomer. However, for the closed isomer, an electrocatalytic ring-opening process was observed for the perhydrocyclopentene ring, while a slightly different electrochem. process was observed for the perfluorocyclopentene system. Mechanistic studies revealed that an internal charge transfer is necessary to destabilize the closed bridge. Once opened, the bridge’s cation radical is a strong oxidant, and the charge eventually gets localized on the ferrocene. The charges then migrate throughout the solution by self-exchange reactions. Hence, the redox status of the Fc units triggers the photochrom’s reactivity playing the role of antenna that can temporarily store a charge and facilitate the transformation. This way to perform the transformation, i.e., by electrochem. rather than photochem., presents the great advantage of being much more local and, thus, would permit the ultimate stage of miniaturization at the scale of just one ol.

Journal of Physical Chemistry C published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics