Tag: M.W:100-200

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Santoro, Antonio; Holub, Jan; Fik-Jaskolka, Marta A.; Vantomme, Ghislaine; Lehn, Jean-Marie researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Recommanded Product: 1762-34-1.They published the article 《Dynamic Helicates Self-Assembly from Homo- and Heterotopic Dynamic Covalent Ligand Strands》 about this compound( cas:1762-34-1 ) in Chemistry – A European Journal. Keywords: transition metal schiff base helicate complex preparation self assembly; crystal structure transition metal schiff base helicate; double-helical structures; dynamic covalent chemistry; metallo-supramolecular structures; programmed self-assembly. We’ll tell you more about this compound (cas:1762-34-1).

The understanding and the application of reversible covalent reactions and coordination chem. together with the proper design of the mol. frameworks, allow to achieve not only well-defined output architectures but also different grades of complex behavior. In this work, the dynamic nature of the helical systems offers an addnl. level of complexity by combining self-sorting on two levels: (1) the build-up of the ligand strand constituents from their components through dynamic covalent chem.; (2) the assembly of the helicates from the ligands and the metal cations through dynamic metallo-supramol. chem. The information encoded in the ligands constituent mol. was read differently (and accurately at the same time) by metal cations that varied in the coordination algorithms. It enabled the selective formation of a specific type of helicates from a wide library of helicates formed by the possible combination of subcomponents. Ligands containing dynamic tridentate and/or bidentate binding motifs in the same strand were studied to explore the helicates self-assembly with appropriate metal cations.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5,5′-Dimethyl-2,2′-bipyridine(SMILESS: CC1=CN=C(C=C1)C1=NC=C(C)C=C1,cas:1762-34-1) is researched.Application of 59782-89-7. The article 《Bipyridine-Directed Syntheses of Uranyl Compounds Containing Semirigid Dicarboxylate Linkers: Diversity and Consistency in Uranyl Speciation》 in relation to this compound, is published in Inorganic Chemistry. Let’s take a look at the latest research on this compound (cas:1762-34-1).

Bipyridine organic bases are beneficial to the synthesis of novel uranyl-organic hybrid materials, but the relationship between their mol. structures and specific roles as structure-directing agents, especially for the semirigid dicarboxylate systems, is still unclear. Here we demonstrate how the bipyridine ligands direct the coordination assembly of uranyl-organic compounds with a semirigid dicarboxylate linker, 4,4′-dicarboxybiphenyl sulfone (H2dbsf), by utilizing a series of bipyridine ligands, 1,10-phenanthroline (phen), 2,2′-bipyridine (2,2′-bpy), 5,5′-dimethylbipyridine (5,5′-dmbpy), 4,4′-bipyridine (4,4′-bpy), or 1,3-di(4-pyridyl)propane (bpp). Under hydrothermal conditions, eight uranyl-organic coordination polymers (UCPs), four of which [[UO2(dbsf)(phen)] (1), [UO2(dbsf)(phen)]·H2O (1′), [U4O10(dbsf)3]2[H2bpp]2 (6), and [U4O10(dbsf)3]2[H2bpp] (6′)] were reported previously, were synthesized and divided into two types based on the chelate or template effect of these bipyridine ligands. 1, 1′, [UO2(dbsf)(2,2′-bpy)] (2), and [(UO2)2(dbsf)2(5,5′-dmbpy)2] (3) are springlike triple helixes with bipyridine ligands (phen, 2,2′-bpy, or 5,5′-dmbpy) as chelate ligands, while [U4O10(dbsf)3][H2(4,4′-bpy)] (4), [U4O10(dbsf)3]2[H(4,4′-bpy)]2[Ni(H2O)6] (5), 6, and 6′ are tetranuclear uranyl-mediated 2-fold-interpenetrating networks with 4,4′-bpy or bpp as template ligands and charge-balancing agents. The participation or not in uranyl coordination of different bipyridine ligands promotes not only diversity in uranyl speciation and final topol. structures among different classes of organic bases but also consistency for the same types of bipyridine ligands, which thus endows the possibility of the rational design of UCPs based on semirigid dicarboxylate ligands with the aid of cautiously selected bipyridine ligands.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Recommanded Product: 5,5′-Dimethyl-2,2′-bipyridine. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Synthesis, crystal structures and biological activity of palladium(II) complexes with 1-methyl-1H-1,2,3,4-tetrazole-5-thiol and substituted 2,2′-bipyridines. Author is Rashidipour, Arezoo; Alizadeh, Robabeh; Sadeghi Mohammadi, Sanam; Tohidlou, Mohammad; Amani, Vahid; Seyfi, Sara.

Reaction of PdCl2 with 1-methyl-1H-1,2,3,4-tetrazole-5-thiol (Hmtzt) in the presence of 5,5′-dimethyl-2,2′-bipyridine (5,5′-dmbipy) and 4,4′-dimethyl-2,2′-bipyridine ligands (4,4′-dmbipy) afforded two new Pd(II) complexes, [Pd(5,5′-dmbipy)(mtzt)2] (1) and [Pd(4,4′-dmbipy)(mtzt)2] (2), resp. The two complexes were thoroughly characterized by elemental anal., UV-vis, 1H NMR, IR, luminescence spectroscopy as well as single-crystal X-ray diffraction. Single-crystal X-ray diffraction revealed that central Pd(II) ions in and are tetra-coordinated, presenting distorted and slightly distorted square planar geometry around Pd atom for and , resp. The luminescence properties of free ligands and complexes 1 and 2, in solution, were investigated. The biol. evaluation of the Pd(II) complexes showed that they exhibited anticancer activities in a dose-dependent manner against human breast cancer cell lines. Also, their in vitro interaction with DNA were analyzed through spectrophotometric, spectrofluorometric, and gel-electrophoresis which shows the intercalation mode of binding. In conclusion, these palladium complexes represent novel anticancer drug mols. for further study.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called An Organometallic Isostere of an Amino Acid, published in 2021-07-19, which mentions a compound: 1762-34-1, mainly applied to rhenium carbonyl bipyridine complex amino acid isostere preparation resolution; crystal structure rhenium carbonyl bipyridine complex amino acid isostere; mol structure rhenium carbonyl bipyridine complex amino acid isostere, Category: benzodioxans.

Rhenium carbonyl complexes with substituted 2,2′-bipyridines I (2a-4a, X = Cl, R1, R2: H, H; EtOCO, Et; Fmoc, H; 2b-4b, X = Br, R1, R2: H, H; EtOCO, Et; Fmoc, H) were prepared as amino acid isosteres and resolved by chiral chromatog. An organometallic complex that mimics an amino acid, also known as an amino acid isostere, can be synthesized from a functionalized bipyridine ligand and a fac-[Re(CO)3]+ center. The reaction of an achiral ligand and metal results in a racemic mixture of chiral-at-metal complexes. These metal species have amine and carboxy termini, a side chain type unit that can be varied, as well as the chiral metal that is analogous to the α carbon of an amino acid. The racemic mixtures can be separated into enantiomers by chiral chromatog., and the metal complexes can be incorporated into peptides by using solid-phase peptide synthesis.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Wang, Rui; Ranganathan, Srivathsan V.; Haruehanroengra, Phensinee; Mao, Song; Scalabrin, Matteo; Fabris, Daniele; Chen, Alan; Liu, Hehua; Hassan, Abdalla E. A.; Gan, Jianhua; Sheng, Jia researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Safety of 5,5′-Dimethyl-2,2′-bipyridine.They published the article 《Construction and structure studies of DNA-bipyridine complexes as versatile scaffolds for site-specific incorporation of metal ions into DNA》 about this compound( cas:1762-34-1 ) in Journal of Biomolecular Structure and Dynamics. Keywords: DNA bipyridine complex metal ion binding; DNA material; DNA scaffold; click reaction; metallic DNA; propargyl-DNA. We’ll tell you more about this compound (cas:1762-34-1).

The facile construction of metal-DNA complexes using ‘Click’ reactions is reported here. A series of 2′-propargyl-modified DNA oligonucleotides were initially synthesized as structure scaffolds and were then modified through ‘Click’ reaction to incorporate a bipyridine ligand equipped with an azido group. These metal chelating ligands can be placed in the DNA context in site-specific fashion to provide versatile templates for binding various metal ions, which are exchangeable using a simple EDTA washing-and-filtration step. The constructed metal-DNA complexes were found to be thermally stable. Their structures were explored by solving a crystal structure of a propargyl-modified DNA duplex and installing the bipyridine ligands by mol. modeling and simulation. These metal-DNA complexes could have wide applications as novel organometallic catalysts, artificial RNases, and potential metal delivery systems.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Category: benzodioxans. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Theoretical exploration of 2,2′-bipyridines as electro-active compounds in flow batteries. Author is Sanchez-Castellanos, Mariano; Flores-Leonar, Martha M.; Mata-Pinzon, Zaahel; Laguna, Humberto G.; Garcia-Ruiz, Karl M.; Rozenel, Sergio S.; Ugalde-Saldivar, Victor M.; Moreno-Esparza, Rafael; Pijpers, Joep J. H.; Amador-Bedolla, Carlos.

Compounds from the 2,2′-bipyridine mol. family were investigated for use as redox-active materials in organic flow batteries. For 156 2,2′-bipyridine derivatives reported in the academic literature, we calculated the redox potential, the pKa for the second deprotonation reaction, and the solubility in aqueous solutions Using exptl. data on a small subset of derivatives, we were able to calibrate our calculations We find that functionalization with electron-withdrawing groups leads to an increase of the redox potential and to an increase of the mol. acidity (as expressed in a reduction of the pKa value for the second deprotonation step). Furthermore, calculations of solubility in water indicate that some of the studied derivatives have adequate solubility for flow battery applications. Based on an anal. of the physico-chem. properties of the 156 studied compounds, we down-select five mols. with carbonyl- and nitro-based functional groups, whose parameters are especially promising for potential applications as neg. redox-active materials in organic flow batteries.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

HPLC of Formula: 1762-34-1. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Heteroleptic NiII complexes: Synthesis, structural characterization, computational studies and amoebicidal activity evaluation. Author is Hernandez-Ayala, Luis Felipe; Toledano-Magana, Yanis; Ortiz-Frade, Luis; Flores-Alamo, Marcos; Galindo-Murillo, Rodrigo; Reina, Miguel; Garcia-Ramos, Juan Carlos; Ruiz-Azuara, Lena.

In this work, we present the synthesis, characterization, electrochem. studies, DFT calculations, and in vitro amoebicidal effect of seven new heteroleptic NiII coordination compounds The crystal structures of [H2(pdto)](NO3)2 and [Ni(pdto)(NO3)]PF6 are presented, pdto = 2,2′-[1,2-ethanediylbis-(sulfanediyl-2,1-ethanediyl)]dipyridine. The rest of the compounds have general formulas: [Ni(pdto)(N-N)](PF6) where N-N = 2,2′-bipyridine (bpy), 4,4′-dimethyl-2,2′-bipyridine (44dmbpy), 5,5′-dimethyl-2,2′-bipyridine (55dmbpy), 1,10-phenanthroline (phen), 4,7-dimethyl-1,10-phenanthroline (47dmphen) and 5,6-dimethyl-1,10-phenanthroline (56dmphen). The size of N-N ligand and its substituents modulate the compound electronic features and influence their antiproliferative efficiency against Entamoeba histolytica, 56dmphen derivative, shows the biggest molar volume and presents a powerful amoebicidal activity (IC50 = 1.2μM), being seven times more effective than the first-line drug for human amoebiasis metronidazole. Also, increases the reactive oxygen species concentration within the trophozoites. This could be the trigger of the E. histolytica growth inhibition. The antiparasitic effect is described using NiII electron d., molar volume, estimated by DFT, as well as the exptl. redox potential and diffusion coefficients In general, amoebicidal efficiency is directly proportional to the increment of the molar volume and decreases when the redox potential becomes more pos.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 1762-34-1, is researched, Molecular C12H12N2, about Addressing Multiple Ions Using Single Optical Probe: Multi-Color Response via Mutually Independent Sensing Pathways, the main research direction is multiple ion single optical probe sensing emission quenching.Synthetic Route of C12H12N2.

Multiresponsive smart optical probe based on p-phenylene vinylene backbone is designed for simultaneous sensing of multiple ions, such as Cu2+, Zn2+ and F- at pH 7.4. A rapid color change from colorless to deep yellow is observed upon addition of both Cu2+ and Zn2+ ion. However, under long UV lamp, the green-colored emission of the probe is specifically quenched in the presence of Cu2+, while Zn2+ induces change in the emission color from green to yellow. On the contrary, F-, unlike Cu2+ and Zn2+, does not render any change in visible color, however, an emission quenching, similar to that of Cu2+ addition, was noticed. The binding of metal ions to the central bipyridine core diminishes the ′conformational flexibility′ and facilitates ′ligand to metal ion′ charge transfer. On the contrary, addition of fluoride triggers the cleavage of silyl ether groups and results in the photo-induced electron transfer from free hydroxyl groups to the core aromatic unit. Thus, we can detect as well as discriminate these three ions (Cu2+, Zn2+ and F-) simultaneously by comparing the resp. output signals. Further, a sustainable strategy has been developed for on-site detection of toxic ions using reusable, low-cost paper strips.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Reference of 5,5′-Dimethyl-2,2′-bipyridine. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Dimeric imidazolium ionic liquids connected by bipyridiyl as a corrosion inhibitor for N80 carbon steel in HCl. Author is Zhang, Juantao; Kong, Minjian; Feng, Jiangtao; Yin, Chengxian; Li, Danping; Fan, Lei; Chen, Qibin; Liu, Honglai.

A new type of the dimeric imidazolium-type amphiphile, BDBCmIB (m = 1, 4 and 8), was synthesized using the bipyridiyl as the spacer, and its inhibition performance and mechanism for the corrosion of N80 carbon steel in 1.0 mol·L-1 HCl were evaluated using chem. and electrochem. measurements, surface analyses and d. functional theory (DFT) calculations Results show that the inhibition efficiency of BDBCmIBs increases with their concentrations and the length of tail chains. BDBC8IB exhibits the best inhibition performance among them and its inhibition efficiency almost exceeds 90% in a wide concentration range from 1.0 × 10-6 to 5.0 × 10-4 mol·L-1 at 25.0 °C, which attains the maximum over 95% at 5.0 × 10-4 mol·L-1. Moreover, three BDBCmIBs all display the high inhibition efficiency at 5.0 × 10-4 mol·L-1, nearly exceeding 90%, in the temperature range from 25.0 to 55.0 °C. As a mixed-type inhibitor, BDBCmIBs can retard both cathodic hydrogen evolution and anodic metal dissolution processes, since BDBCmIB mols. bear the imidazolium-based heterocycle with the electron-donating ability and the bipyridine with the electron-accepting ability, thereby facilitating the formation of a protective film on the surface of N80 carbon steel via electrostatic interactions, coordinated and back-donating bonds. The adsorption of BDBCmIBs obeys the Langmuir isothermal model. Our finding demonstrates that the introduction of the bipyridiyl at the spacer does favor improving the inhibition efficiency of such dimeric imidazolium-type amphiphiles, and meanwhile, the proper increase in the number of carbon atoms in the substituents on the imidazole rings can also enhance the inhibition efficiency.

In some applications, this compound(1762-34-1)Reference of 5,5′-Dimethyl-2,2′-bipyridine is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Related Products of 1762-34-1. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Chemical sensors based on nano-sized lanthanide-grafted periodic mesoporous organosilica hybrid materials. Author is Kaczmarek, Anna M.; Van Der Voort, Pascal.

In this work authors introduce the use of nano-sized (50-70 nm) lanthanide-grafted periodic mesoporous organosilicas for both metal ion sensing and solvent sensing. For this study a PMO constructed from the N,N-bis(trimethoxysilylpropyl)-2,6-pyridine dicarboxamide linker and tetra-Et orthosilicate (at a 5 : 95 ratio) was employed. This material was grafted with Eu3+, Tb3+ or a mixture of Eu3+-Tb3+ chloride salts to obtain strongly emitting nano-sized luminescence materials. To further enhance the luminescence properties of the materials two different co-ligands were used – 1,10-phenanthroline (phen) and 5,5′-dimethyl-2,2′-dipyridyl (bpy). The luminescence properties of the developed series of hybrid materials were studied in detail in the solid-state and after dispersing in water. The materials were investigated for their use as ion sensors, with the Eu3+ and Tb3+ phen and bpy co-grafted materials showing selective “”turn on”” fluorescence for Pb2+ and Cr3+ ions (at a 10 ppm concentration of the ions). The Eu3+-Tb3+ co-grafted materials showed solvatochromism and could be used as a solvent sensor to distinguish between protic and aprotic solvents.

In some applications, this compound(1762-34-1)Related Products of 1762-34-1 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem