Tag: M.W=300-350

Tunc, Sibel published the artcileInvestigation of interactions between some anionic dyes and cationic surfactants by conductometric method, COA of Formula: C19H34ClN, the publication is Fluid Phase Equilibria (2007), 251(1), 1-7, database is CAplus.

The interactions of cationic surfactants with anionic dyes were studied by conductometric method. Benzyltrimethylammonium chloride (BTMACl), benzyltriethylammonium chloride (BTEACl) and benzyltributylammonium chloride (BTBACl) were used as cationic surfactants and indigo carmine (IC) and amaranth (Amr) were chosen as anionic dyes. The specific conductance of dye-surfactant mixtures was measured at 25, 35 and 45 °C. A decrease in measured specific conductance values of dye-surfactant mixture was caused by the formation of non-conducting or less-conducting dye-surfactant complex. The equilibrium constants, K₁, the standard free energy changes, ΔG°₁ the standard enthalpy changes, ΔH°₁ and the standard entropy changes, ΔS°₁ for the first association step of dye-surfactant complex formation were calculated by a theor. model. The results showed that the equilibrium constants and the neg. standard free energy change values for all systems decreased as temperature increased. Also these values decreased for all systems studied with increasing alkyl chains of surfactants due to the steric effect. When the equilibrium constant values, K₁, for the first association step of IC-surfactant and Amr-surfactant systems with the same surfactant were compared, the values of K₁ for IC-surfactant system were higher than that of Amr-surfactant system.

Fluid Phase Equilibria published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C8H19NO2, COA of Formula: C19H34ClN.

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

Passos, Helena published the artcileSelective Sequential Recovery of Zinc and Copper from Acid Mine Drainage, Computed Properties of 23616-79-7, the publication is ACS Sustainable Chemistry & Engineering (2021), 9(10), 3647-3657, database is CAplus.

The observed imbalance between the unsustainable consumption of available natural metal resources and finite deposits makes the recovery and recycling of metals from metal-containing wastes an imperative. Here, ionic-liquid-based aqueous biphasic systems (IL-based ABSs) are proposed as an efficient alternative for selective metal recovery from real copper acid mine drainage (AMD) effluents. ABSs composed of different ILs and Na₂SO₄ were evaluated for Zn, Al, Cu, Co, and Ni extraction from both model solutions and AMD samples. It is shown that IL composed of thiocyanate anion ([SCN]^–) presented a remarkable ability to extract metals from AMD through the formation of stable metal complexes. The addition of NaSCN to ABSs composed of tetrabutylammonium chloride ([N₄₄₄₄]Cl) allowed to mimic the use of [SCN]-based IL with addnl. advantages: tunable metal selectivity by the concentration of [SCN]^– added to the ABS and a reduction in system cost and environmental impact. Furthermore, at the [SCN]^– concentration range studied here, the formation of a hydrophobic salt composed of IL cations and metal complex anions is observed, which allows the selective extraction and recovery of transition metals in a single step. The IL-rich phase recyclability in three extraction cycles is demonstrated, showing the possibility to recover two times more Zn than with a single extraction cycle while using the same amount of IL and thiocyanate. Salt-rich phases were also recycled in a new IL-based ABS for the subsequent Cu extraction and recovery. These results allow the development of a sustainable process for the selective sequential recovery of transition metals from AMD.

ACS Sustainable Chemistry & Engineering published new progress about 23616-79-7. 23616-79-7 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst, name is N-Benzyl-N,N-dibutylbutan-1-aminium chloride, and the molecular formula is C19H34ClN, Computed Properties of 23616-79-7.

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

Sanchez, Laura M. published the artcileVersatile Method for the Detection of Covalently Bound Substrates on Solid Supports by DART Mass Spectrometry, Recommanded Product: 2-Chlorotrityl chloride, the publication is Organic Letters (2011), 13(15), 3770-3773, database is CAplus and MEDLINE.

Anal. of substrates directly on solid phase resins without the need for sep. cleavage conditions remains an outstanding challenge in the field of solid phase synthesis. The authors now present the 1st example of simultaneous cleavage and mass spectrometric anal. of peptides from solid supports using direct anal. in real time (DART) mass spectrometry. This method is compatible with a diverse array of solid phase resins and is suitable for anal. of both peptides and organic substrates.

Organic Letters published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, Recommanded Product: 2-Chlorotrityl chloride.

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

Li, Zhao-Yang published the artcileStructure Switching and Modulation of the Magnetic Properties in Diarylethene-Bridged Metallosupramolecular Compounds by Controlled Coordination-Driven Self-Assembly, Application of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Angewandte Chemie, International Edition (2019), 58(13), 4339-4344, database is CAplus and MEDLINE.

The authors report three self-assembled iron complexes that comprised an anti-parallel open form (o-L-anti), a parallel open form (o-L-syn), and a closed form (c-L) of diarylethene conformers. Under kinetic control, Fe^II₂(o-L-anti)₃ was isolated, which exhibited a dinuclear structure with diamagnetic properties. Under light-irradiation control, Fe^II₂(c-L)₃ was prepared and exhibited paramagnetism and spin-crossover behavior. Under thermodn. control and in the presence of indispensable [Fe^III(Tp^*)(CN)₃]^–, Fe^II₂(o-L-anti)₃ and Fe^II₂(c-L)₃ transformed into tetranuclear Fe^III₂Fe^II₂(o-L-syn)₂, which exhibited complete spin-crossover behavior at T_1/2 = 353 K.

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, Application of 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

Li, Ziyong published the artcileA Photoswitchable Triple Chemosensor for Cyanide Anion Based on Dicyanovinyl-Functionalized Dithienylethene, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is European Journal of Organic Chemistry (2019), 2019(22), 3614-3621, database is CAplus.

The development of new sensors for the accurate detection of cyanide anion has attracted more and more attention due to their potential applications in environmental and biol. systems. Here, two novel near-IR (NIR) photochromic compounds 1a and 1b, which were modified by the dicyanovinyl fragment with cyanide recognition function, were developed. Surprisingly, 1a presented an unprecedented triple sensing performance for cyanide anion (colorimetric-fluorescent-colorimetric), which can be used as a potential precision sensor for CN^– in environmental and biol. systems. Although 1b did not show triple detection behavior for CN^–, it could recognize CN^– and F^– synchronously and selectively by naked eyes. Also, their NIR photochromic behaviors could be modulated by the cyanide anion. Their sensing mechanism for CN^– or F^– was confirmed by absorption spectral studies, NMR titration, and DFT calculations

European Journal of Organic Chemistry 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

Algi, Melek Pamuk published the artcileSynthesis, properties, and electrochemistry of a photochromic compound based on dithienylethene and ProDOT, HPLC of Formula: 219537-97-0, the publication is Turkish Journal of Chemistry (2015), 39(1), 139-148, database is CAplus.

The synthesis, photochromic features, and electrochem. of a novel material based on dithienylethene (DTE) and 3,3-didecyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine (didecyl-ProDOT) units are described. It is noteworthy that 1,2-bis(5-(3,3-didecyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepin-6-yl)-2-methylthiophen-3-yl)cyclopent-1-ene can be efficiently switched between open and closed states by light in both solution and in the solid poly(Me methacrylate) (PMMA) matrix. It is also found that the emission of this novel compound can be switched on and off upon irradiation

Turkish Journal of Chemistry 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, HPLC of Formula: 219537-97-0.

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

Maximo, Patricia published the artcilePhotomodulation of ultrastable host-guest complexes in water and their application in light-controlled steroid release, Synthetic Route of 219537-97-0, the publication is Organic Chemistry Frontiers (2022), 9(16), 4238-4249, database is CAplus.

The cucurbit[8]uril (CB8) synthetic receptor was shown to form high-affinity host-guest complexes with dicationic dithienylethene (DTE) photoswitches I [R = H, Me; R¹ = 1-iodo-1-methyl-2-pyridyl, 1-iodo-1-methyl-3-pyridyl, 1-iodo-1-methyl-4-pyridyl] in water. ITC experiments combined with computational studies suggest that the formation of the inclusion complexes was mainly driven by a combination of hydrophobic effects, ion-dipole, hydrogen- and chalcogen-bonding interactions. The binding affinities were observed to be much higher for the DTE closed isomers, reaching values in the picomolar range (up to 10¹¹ M^-1) while the open isomers display up to 10 000-fold lower affinities, setting ideal conditions for the development of robust photoswitchable host-guest complexes. The light-responsive affinity of these photoswitches toward CB8 was explored to control the encapsulation and release of nanomolar affinity steroids via competitive guest replacement.

Organic Chemistry Frontiers 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, Synthetic Route of 219537-97-0.

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