Category: 219537-97-0

Presa, Andreu published the artcilePhotoactivation of the Cytotoxic Properties of Platinum(II) Complexes through Ligand Photoswitching, Application of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Inorganic Chemistry (2018), 57(7), 4009-4022, database is CAplus and MEDLINE.

The development of photoactivatable metal complexes with potential anticancer properties is a topical area of current investigation. Photoactivated chemotherapy (PACT) using coordination compounds is typically based on photochem. processes occurring at the metal center. In the present study, an innovative approach is applied that takes advantage of the remarkable photochem. properties of diarylethenes. Following a proof-of-concept study with two complexes, namely C1 and C2, a series of addnl. platinum(II) complexes from dithienylcyclopentene-based ligands have been designed and prepared Like C1 and C2, these new coordination compounds exhibit two thermally stable, interconvertible photoisomers that display distinct properties. The photochem. behavior of ligands L3-L7 has been analyzed by 1H NMR and UV-vis spectroscopy. Subsequently, the corresponding platinum(II) complexes C3-C7 have been synthesized and fully characterized, including by X-ray diffraction for some of them. Next, the interaction of each photoisomer (i.e., containing the open or closed ligand) of the metal complexes with DNA has been examined thoroughly using various techniques, revealing their distinct DNA-binding modes and affinities, as observed for the earlier compounds C1 and C2. The antiproliferative activity of the two forms of the complexes has then been assessed with five cancer cell lines and compared with that of C1 and C2, which supported the use of such diarylethene-based systems for the generation of a new class of potential photochemotherapeutic metallodrugs.

Inorganic 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, 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

Castellanos, Sonia published the artcileGating charge recombination rates through dynamic bridges in tetrathiafulvalene-fullerene architectures, HPLC of Formula: 219537-97-0, the publication is Angewandte Chemie, International Edition (2013), 52(52), 13985-13990, database is CAplus and MEDLINE.

In summary, we have prepared new mol. constructs composed of electron-donating tetrathiafulvalene (TTF) and p-extended-TTF derivatives covalently connected to electron-accepting pyrrolidino[3,4:1,2] fullerene through photo-switchable dithienylethene bridges. By exposure to a light stimulus the bridge can be interconverted between a decoupled ring-open and a coupled ring-closed form and, hence, enables external control of electronic communication between the donor and acceptor units. In the resulting architectures, incoming photons give rise to efficient charge separation and, furthermore, allow modulation of the lifetimes of the charge-separated states over two orders of magnitude by variation of their wavelength. The photoresponsive, dynamic bridge provides a means for (self-)regulation through a reversible activation-deactivation mechanism for solar energy conversion in artificial photosynthetic systems.

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, HPLC of Formula: 219537-97-0.

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

Zhong, Yu-Wu published the artcileDithienylcyclopentenes-Containing Transition Metal Bisterpyridine Complexes Directed toward Molecular Electronic Applications, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Inorganic Chemistry (2009), 48(3), 991-999, database is CAplus and MEDLINE.

There is continuing interest in the design and synthesis of functional materials for applications in mol. electronics and information storage. Of particular interest are systems that can provide multiple means for controlling transport through well-defined and stable electronic and/or redox states. The authors report herein the synthesis and characterization of a system containing transition-metal complexes along with dithienylethene (DTE) units so as to achieve photo and redox control of transport. A facile synthetic methodol. was developed to assemble and couple metal terpyridine (M-tpy) complexes with the photochromic DTE unit in a linear structure with M-DTE-M or DTE-M-DTE arrangements, with emphasis on the latter series. The photochromic properties of these assemblies were examined by monitoring the changes in their UV/visible spectra upon irradiation at specific wavelengths capable of triggering the open/closed isomerization in the DTE units. Their electrochromic properties were studied via cyclic voltammetry and controlled potential electrolysis experiments Complexes 10 (PhDTE-Fe-DTEPh) and 11 (PhDTE-Co-DTEPh) with phenyl-ending groups are both photochromic and electrochromic, so they represent excellent candidates for further elaborations. The Fe(II)-containing complex 8 (ClDTE-Fe-DTECl) with chloride-ending groups was photochromically inactive but could undergo the electrochem. induced open-to-closed isomerization. On the contrary, the electrochromically inactive complex 9 (ClDTE-Co-DTECl) underwent cyclization under UV irradiation

Inorganic 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 C12H10F2Si, 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

Zhong, Yu-Wu published the artcileDinuclear Transition-Metal Terpyridine Complexes with a Dithienylcyclopentene Bridge Directed toward Molecular Electronic Applications, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Inorganic Chemistry (2007), 46(25), 10470-10472, database is CAplus and MEDLINE.

Dinuclear metal terpyridine (M-tpy; M = Ru, Os, Fe, and Co) complexes with a photochromic dithienylethene bridge were designed and synthesized through either a convergent or a divergent approach. The open forms of the complexes containing Ru^II and Fe^II centers are inert to UV photoirradiation but could be cyclized electrochem. as revealed by a cyclic voltammetric study. On the contrary, the Co^II complex underwent efficient photochem. but not electrochem. cyclization. The corresponding Os^II complex was neither photochromic nor electrochromic.

Inorganic 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 C19H14O2, 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

Li, Yannian published the artcileReversible Light-Directed Red, Green, and Blue Reflection with Thermal Stability Enabled by a Self-Organized Helical Superstructure, Application In Synthesis of 219537-97-0, the publication is Journal of the American Chemical Society (2012), 134(23), 9573-9576, database is CAplus and MEDLINE.

Adding external, remote, and dynamic control to self-organized superstructures with desired properties is an important leap necessary in leveraging the fascinating mol. subsystems for employment in applications. Here two novel light-driven dithienylethene chiral mol. switches possessing remarkable changes in helical twisting power during photoisomerization as well as very high helical twisting powers were found to experience photochem. reversible isomerization with thermal stability in both isotropic organic solvents and anisotropic liquid crystal media. When doped into a com. available achiral liquid crystal host, the chiral switch was able to either immediately induce an optically tunable helical superstructure or retain an achiral photoresponsive liquid crystal phase whose helical superstructure was induced and tuned reversibly upon light irradiation Moreover, reversible light-directed red, green, and blue reflection colors with thermal stability in a single thin film were demonstrated.

Journal of the American Chemical Society 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 In Synthesis of 219537-97-0.

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

Li, Yannian published the artcileSynthesis and Characterization of Light-Driven Dithienylcyclopentene Switches with Axial Chirality, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Journal of Organic Chemistry (2011), 76(17), 7148-7156, database is CAplus and MEDLINE.

Dithienylcyclopentenes such as I and its enantiomer were prepared as photochem. reversible but thermally stable switches with axial stereochem. All three compounds prepared exhibited photochem. reversible isomerization between their open forms and closed forms and were thermally stable in the open and closed forms both in organic solvents and in a liquid crystal host. Dithienylcyclopentenes such as I acted not only as chiral dopants, inducing helical superstructures in achiral liquid crystal hosts, but also reversibly and dynamically tuned the transmittance and reflection of the resulting chiral phases upon light irradiation The helical twisting powers, transmittance, and reflection spectra of photoswitchable cholesteric liquid crystals were measured. I exhibited an unusually high helical twisting power, which is significantly larger than those of the known chiral diarylethenes reported as chiral dopants so far.

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

Rameshbabu, Krishnamurthy published the artcileSynthesis and Characterization of Thermally Irreversible Photochromic Cholesteric Liquid Crystals, Name: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Journal of Physical Chemistry B (2011), 115(13), 3409-3415, database is CAplus and MEDLINE.

Three thermally irreversible photochromic chiral liquid crystal dithienylcyclopentenes were found not only to be able to self-organize into a phototunable helical superstructure, i.e., cholesteric phase, but also to be able to induce a photoresponsive helical superstructure in an achiral liquid crystal host. The cholesteric phase in the three chiral compounds went into a glassy phase without crystallization upon cooling. All the materials exhibited reversible photochromism with thermal stability in both solution and thin film, and their fluorescence was shifted to longer wavelength upon UV irradiation while the shifted fluorescence was recovered upon visible light irradiation The enhanced fluorescence emission with the addition of fluoride anions was observed, and its reverse process happened with the addition of an equivalent proton.

Journal of Physical Chemistry B 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, Name: 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

Akazawa, Masako published the artcilePhotoresponsive dithienylethene-urea-based organogels with “reversed” behavior, HPLC of Formula: 219537-97-0, the publication is Organic & Biomolecular Chemistry (2008), 6(9), 1544-1547, database is CAplus and MEDLINE.

Dithienylperhydrocyclopentene-bisurea-based low mol. weight gelators are described that function as photoresponsive organogels that show a remarkable gel-to-liquid transition upon irradiation The two series of derivatives, with and without alkyl spacers between the urea hydrogen bonding groups and the photochromic unit, show different gelation behavior. Upon UV irradiation of the gels, a gel liquefied at only 1.4% conversion of the photochromic unit. Transmission electron microscopy (TEM) shows that the gel fibers consist of thin ribbons. Semi-empirical (PM3) calculations indicate that the hydrogen bonding between the open-ring isomer (o) mols. is weak, and that formation of the closed-ring isomer (c) destabilizes the hydrogen bonding further. The results indicate that a small amount of the closed-ring isomer will disrupt the intermol. hydrogen-bonding, leading to disintegration of the gel fiber ribbons and hence reversible liquefication.

Organic & Biomolecular 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

Kleinwaechter, Michael published the artcileOxidative and reductive cyclization in stiff dithienylethenes, HPLC of Formula: 219537-97-0, the publication is Beilstein Journal of Organic Chemistry (2018), 2812-2821, database is CAplus and MEDLINE.

The electrochem. behavior of stiff dithienylethenes, undergoing double bond isomerization in addition to ring-closure, has been investigated. Electrochromism was observed in almost all cases, with the major pathway being the oxidatively induced cyclization of the open isomers. The influence of the ring size (to lock the reactive antiparallel conformation) as well as substituents (to modulate the redox potential) on the electrocyclization was examined In the series of derivatives with 6-membered rings, both the E- and the Z-isomer convert to the closed isomer, whereas for the 7-membered rings no cyclization from the E-isomer was observed For both stiff and normal dithienylethenes bearing benzonitrile substituents an addnl. and rare reductive electrocyclization was observed The mechanism underlying both observed electrocyclization pathways has been elucidated.

Beilstein 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, HPLC of Formula: 219537-97-0.

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

Kobatake, Seiya published the artcileAcid-induced photochromic system switching of diarylethene derivatives between P- and T-types, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Chemical Communications (Cambridge, United Kingdom) (2007), 1698-1700, database is CAplus and MEDLINE.

Diethylamino-substituted diarylethenes can switch between P-type photochromism (P-type = thermally stable isomers) and T-type (thermally unstable isomers) photochromism upon addition of trifluoromethanesulfonic acid. The protonated closed-form photoinduced color isomers return to open-ring isomers at a fast rate at elevated temperature such as 160° C. The protonation and deprotonation of the open- and closed isomers was reversible. Such photochromic materials could be used as reversible switching materials for write-by-light/erase-by-heat recording.

Chemical Communications (Cambridge, United Kingdom) 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