Month: April 2022

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 Four rare earth complexes with chlorinated carboxylic acids and bipyridine ligands: crystal structures, thermal analysis and luminescence properties, the main research direction is rare earth complex chlorinated carboxylic bipyridine crystal structure luminescence.Quality Control of 5,5′-Dimethyl-2,2′-bipyridine.

Four new complexes were successfully synthesized by solvothermal method or conventional solution method, namely [Ln2(5,5′-DM-2,2′-bipy)2 (3,4-DClBA)6 (H2O)(C2H5OH)](Ln=Sm(1), Eu(2)) and [Ln(5,5′-DM-2,2′-bipy)(3,5-DClBA)3]2 (Ln=Sm(3), Eu(4); 3,4-HDClBA=3,4-dichlorobenzoic acid, 3,5-HDClBA=3,5-dichlorobenzoic acid, 5,5′-DM-2,2′-bipy=5,5′-dimethyl-2,2′-bipyridine). Complexes 1 and 2 are isostructure and each metal center is eight-coordinated forming a distorted square antiprismatic. Complexes 1 and 2 are connected to form 2D supermol. structure by C-HCl hydrogen bonding and π-π interactions. The geometry of complex 3 is a nine coordinated distorted monocapped square antiprismatic, and the two-dimensional supramol. structure is formed by different π-π stacking interactions between mols. Thermogravimetric-IR combined technol. revealed the thermal stability and thermal decomposition mechanism of complexes 1∼4. The fluorescence and lifetime of complexes 2 and 4 were studied. The results showed that both complexes could emit the characteristic fluorescence of Eu3+ ions.

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

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 1762-34-1, is researched, SMILESS is CC1=CN=C(C=C1)C1=NC=C(C)C=C1, Molecular C12H12N2Journal, Journal of Molecular Structure called A new mononuclear nickel complex with 5,5′-dimethyl-2,2′-bipyridine: Synthesis, structural investigation and catalytic properties, Author is Jaballi, Rim; Atoui, Dhieb; Maalej, Wassim; Babaryk, Artem; Horcajada, Patricia; Ben Salem, Ridha; Elaoud, Zakaria, the main research direction is preparation crystal structure mononuclear nickel dimethylbipyridine selenate complex; Thermal decomposition mononuclear nickel dimethylbipyridine selenate complex; Heck Sonogashira coupling reaction nickel dimethylbipyridine selenate complex catalyst.Safety of 5,5′-Dimethyl-2,2′-bipyridine.

The new [Ni(dmbpy)(H2O)4]SeO4 (1) complex (dmbpy = 5,5′-dimethyl-2,2′-bipyridine or C12H12N2), based on mononuclear nickel(II) and bi-at. bridging ligands was successfully synthesized by hydrothermal method. The crystals were characterized by x-ray single-crystal diffraction, crystallizing in the monoclinic system, space group P21/c. Their crystal structure consists of metallic cations octahedrally coordinated by four water mols. and two nitrogen atoms coming from the organic mol. [NiN2O4], and a selenate anion (SeO4)2-. Their crystal packing is ensured by a three-dimensional network of O-H. O hydrogen bonds between the cation and anion moieties, and π… π interactions between the pyridine rings of the organic moieties of the same layer. The thermal anal. discloses dehydration between 148° and 210°, leading to an anhydrous compound [Ni(dmbpy)]SeO4. The study of vibrational absorption and Raman scattering spectra allows bringing addnl. information to those obtained by x-ray diffraction. The optical band gap was calculated from the UV-visible absorbance spectra using classical Tauc relation which is 3.58 eV. The catalytic evaluation of [Ni(dmbpy)(H2O)4]SeO4 on Heck and Sonogashira coupling reactions, activated by ultrasonic irradiation, results in encouraging yields for a very short times with a remarkable selectivity of the form (E) with respect to (Z) during the arylation of styrene, making this complex a promising catalyst for both types of reactions. The coupling products of the Heck and Sonogashira coupling reaction ((Z)-/(E)- Stilbene and Diphenylacetylene, resp.) were examined by 13C NMR and 1H NMR. These spectroscopic measurements provide extremely valuable information on the structure of the mols. obtained.

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

Zhou, Meng-Xue; Ren, Ning; Zhang, Jian-Jun; Wang, Da-Qi published the article 《Synthesis, crystal structure, thermal, luminescent property and antibacterial activity of lanthanide ternary complexes with p-chlorobenzoic acid and 5,5′-dimethyl-2,2′-bipyridine》. Keywords: rare earth chlorobenzoic acid bipyridine ternary complex preparation structure; antibacterial crystal structure thermal property fluorescence rare earth complex.They researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Category: benzodioxans. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1762-34-1) here.

Four novel lanthanide coordination complexes, [La(p-ClBA)3(5,5′-DM-2,2′-bipy)H2O]n (1), [Ln(p-ClBA)3(5,5′-DM-2,2′-bipy)H2O]2 (Ln = Sm 2, Eu 3, Gd 4) were obtained from the reaction between p-chlorobenzoic acid (p-ClHBA), 5,5′-dimethyl-2,2′-bipyridine (5,5′-DM-2,2′-bipy) and lanthanide nitrate under solvothermal conditions. Single crystal X-ray diffraction anal. showed that complex 1 is a 1D chain structure, crystallized in the monoclinic system, space group P2(1)/n, and formed a 2D sheet through the C-H···O hydrogen bond interactions. While complexes 2-4 were binuclear unit and crystallizes isomorphically in the triclinic system, space group Pi̅. The binuclear unit were assembled into 1D supramol. structures through the O-H···O hydrogen bond interactions along the a-axis and formed a 2D supramol. structures through the π-π stacking interactions along the b-axis. The thermal anal. of four complexes were studied by TG-DSC/FTIR. The solid state photoluminescent properties of complex 3 were investigated at room temperature Moreover, the antibacterial activities of complexes 1-4 on Candida albicans were studied.

When you point to this article, it is believed that you are also very interested in this compound(1762-34-1)Category: benzodioxans and due to space limitations, I can only present the most important information.

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.Safety of 5,5′-Dimethyl-2,2′-bipyridine. The article 《Synthesis, structures, thermal behaviour, luminescence and magnetic properties of lanthanide complexes constructed from 2,6-dimethylbenzoic acid and 5,5′-dimethyl-2,2′-bipyridine》 in relation to this compound, is published in Applied Organometallic Chemistry. Let’s take a look at the latest research on this compound (cas:1762-34-1).

Six new lanthanide complexes, with the formula [La(2,6-DMBA)3(5,5′-DM-2,2′-bipy)(H2O)]2 (1) and [Ln(2,6-DMBA)3(5,5′-DM-2,2′-bipy)]2 (Ln = Tb(2), Dy(3), Ho(4), Pr(5), Nd(6)) (2,6-DMBA = 2,6-dimethylbenzoate, 5,5′-DM-2,2′-bipy = 5,5′-dimethyl-2,2′-bipyridine) have been successfully synthesized and characterized. These title complexes have three different structural types. The structure of complex 1(type I) contains coordination water mols., and the coordination number is 8. The coordination numbers of complexes 2-4 and 5-6 are 8 and 9, showing a distorted square antiprism geometry and distorted monocapped square anti-prismatic geometry, resp. However they have the same general formula and they can be all assembled into the same 1D, 2D supramol. structures via the C-H···O hydrogen bonding interactions, which is interesting in previous lanthanide complexes. The complexes were analyzed by TG-DSC/FTIR. In addition, the visible light luminescence experiments of Tb (III) complex was carried out, and the characteristic luminescence behavior of strong green color was shown. And the fluorescence lifetime and intrinsic quantum yield were calculated The magnetic properties of complexes 2-4 were also studied, and the results showed that complex 3 and complexes 2, 4 have ferromagnetic interactions and antiferromagnetic interactions, resp.

When you point to this article, it is believed that you are also very interested in this compound(1762-34-1)Computed Properties of C12H12N2 and due to space limitations, I can only present the most important information.

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

Safety 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.

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

Duan, Jicheng; Wang, Yuquan; Qi, Liangliang; Guo, Peng; Pang, Xiaobo; Shu, Xing-Zhong published the article 《Nickel-Catalyzed Cross-Electrophile C(sp3)-Si Coupling of Unactivated Alkyl Bromides with Vinyl Chlorosilanes》. Keywords: nickel catalyst cross coupling alkyl bromide vinyl chloro silane; alkyl silane organosilane preparation.They researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).SDS of cas: 1762-34-1. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1762-34-1) here.

Cross-electrophile C-Si coupling has emerged as a promising tool for the construction of organosilanes, but the potential of this method remains largely unexplored. Herein, we report a C(sp3)-Si coupling of unactivated alkyl bromides with vinyl chlorosilanes. The reaction proceeds under mild conditions, and it offers a new approach to alkylsilanes. Functionalities such as Grignard-sensitive groups (e.g., acid, amide, alc., ketone, and ester), acid-sensitive groups (e.g., ketal and THP protection), alkyl fluoride and chloride, aryl bromide, alkyl tosylate and mesylate, silyl ether, and amine were tolerated. Incorporation of the -Si(vinyl)R2 moiety into complex mols. and the immobilization of a glass surface by formed organosilanes were demonstrated.

When you point to this article, it is believed that you are also very interested in this compound(1762-34-1)SDS of cas: 1762-34-1 and due to space limitations, I can only present the most important information.

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

Safety of 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 Supramolecular architectures of mononuclear nickel(II) and homobinuclear copper(II) complexes with the 5,5′-dimethyl-2,2′-bipyridine ligand: Syntheses, crystal structures and Hirshfeld surface analyses. Author is Maalej, Wassim; Jaballi, Rim; Rached, Asma Ben; Guionneau, Philippe; Daro, Nathalie; Elaoud, Zakaria.

Two new compounds based on one mononuclear nickel(II) and one homobinuclear copper(II) complexes resp. and of general formula [Ni(dmbpy)2(CH3COO)]ClO4 (1) and [Cu2(dmbpy)2(CH3COO)3]ClO4 (2) with dmbpy = 5,5′-dimethyl-2,2′-bipyridine, were synthesized by hydrothermal treatment. Both were influenced by the coordinated acetate ion mol. The crystal and mol. structures of (1) and (2) were determined by single crystal x-ray diffraction method and both compounds were addnl. characterized by elemental and TGA, FTIR spectroscopy, powder X-ray diffraction and UV-visible. The mononuclear complex (1) shows a distorted octahedral geometry around the metal ion. However, the copper(II) compound crystallizes as an homobinuclear system, in which each of the metal ions is located into the N2O3 coordination spheres adopting a distorted square pyramidal geometry. In (2) the intramol. distance between two copper atoms is of the order of Cu1-Cu2 = 3.38(2) Å. In both crystals packing of these two complexes, H-bonding, π···π, and C-H···π interactions are operative in forming supramol. motifs. 1 Displays two 1D chains that lead to form R88(42) ring motifs, repetition of which generates a 2D supramol. network. These chains interacts with the neighboring ones via intermol. C-H···π and π···π stacking interactions, giving a 3D-stacking network (2D+1D→3D). Formation of a 2D supramol. sheet in the solid state structure of (2) is facilitated by the C-H···O, C-H···π and π···π interactions (1D+1D→2D). Hirshfeld surface anal. and theor. calculations were carried out on the two compounds C-H···O, C-H··· π and π···π stacking interactions play a paramount role in the stabilization of the supramol. architecture of (1) and (2). In addition, absorption spectra reveal their semi-conductive nature (4.19 eV for (1)·and 4.43 eV for (2)).

When you point to this article, it is believed that you are also very interested in this compound(1762-34-1)Safety of 5,5′-Dimethyl-2,2′-bipyridine and due to space limitations, I can only present the most important information.

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

Synthetic Route of C12H12N2. 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 CO2 to CO: Photo- and Electrocatalytic Conversion Based on Re(I) Bis-Arene Frameworks: Synergisms Between Catalytic Subunits. Author is Hernandez-Valdes, Daniel; Fernandez-Teran, Ricardo; Probst, Benjamin; Spingler, Bernhard; Alberto, Roger.

Reduction of CO2 to CO and H2O is a two electron/two proton process. For this process, multinuclear complexes offer advantages by concentrating reduction equivalent more efficiently than mononuclear systems. We present novel complexes with [Re(η6-C6H6)2]+ as scaffold conjugated to one or two catalytically active [Ru(dmbpy)(CO)2Cl2] subunits (dmbpy=5,5′-dimethyl-2,2′-bipyridine). The [Re(η6-C6H6)2]+ scaffold was chosen due to its very high photo- and chem. stability, as well as the multiple degrees of freedom it offers for any conjugated functionalities. High efficiency and selectivity for the reduction of CO2 to CO (over H2 or HCOOH) is reported. TONs and TOFs were found to be comparable or higher than for the catalyst subunit without the rhenium framework. Cooperativity in photo- and electrocatalysis is observed for the complex comprising two catalytic subunits. The synergistic communication between the two catalytic subunits is responsible for the observed enhancement in both photo- and electrocatalytic performance. Confirmation of electronic communication between the two [Ru(dmbpy)(CO)2Cl2] subunits as well as the elucidation of a possible mechanism was supported by electrochem., IR-spectroelectrochem. and DFT studies.

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

Synthetic Route of C12H12N2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Stable Radical Cation-Containing Covalent Organic Frameworks Exhibiting Remarkable Structure-Enhanced Photothermal Conversion. Author is Mi, Zhen; Yang, Peng; Wang, Rong; Unruangsri, Junjuda; Yang, Wuli; Wang, Changchun; Guo, Jia.

The production of a radical cation-containing covalent organic framework (COF) has been accomplished by sequential in situ reactions, quaternization, and one-electron reduction of the 2,2′-bipyridine-based COFs. The acid-catalyzed COF formation enables the cis configuration of 2,2′-bipyridyl moieties in the structure, of which the stability arises from the eclipsed stacking of the two-dimensional layered structure. The postfunctionalization generates cyclic alkylated diquats as the sole products from the controlled quaternization. The reduction of diquat cations on the COF skeletons results in a large number of radical cations, which delocalize and uniaxially stack on top of one another by virtue of interlayered π-electronic couplings. The absorption of the near-IR (NIR) region exhibited by the cationic radical COF is remarkably high owing to the intercharge transfer across the π-coupling interlayers. Also, the long-range array of extended and planar frameworks in such a COF leads to the extra stability of the radical cations against external stresses. The structure-enhanced performance of the COF material is witnessed with photothermal conversion efficiencies of as high as 63.8 and 55.2% when exposed to 808 and 1064 nm lasers, resp. Further PEG modification on such a COF allows photoacoustic imaging and photothermal therapy in vivo under NIR light illumination to be manifested.

When you point to this article, it is believed that you are also very interested in this compound(1762-34-1)Synthetic Route of C12H12N2 and due to space limitations, I can only present the most important information.

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

Computed Properties of C12H12N2. 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 Identification of descriptors for structure-activity relationship in ruthenium (II) mixed compounds with antiparasitic activity. Author is Cedillo-Gutierrez, Erika Lorena; Hernandez-Ayala, Luis Felipe; Torres-Gutierrez, Carolina; Reina, Miguel; Flores-Alamo, Marcos; Carrero, Julio C.; Ugalde-Saldivar, Victor M.; Ruiz-Azuara, Lena.

Herein is presented the synthesis, characterization, electrochem. studies, DFT calculations and in vitro evaluation of amoebicidal activity in trophozoites of Entamoeba histolytica of twenty ruthenium(II) mixed compounds with general formulas: [Ru(pdto)(E-E)]Clx (E-E bidentate, either neutral or neg. charged ligands). For compounds under study, O-O, N-O and N-N auxiliary donor ligands demonstrate to have a crucial impact on the electronic properties and that it is possible to modulate the antiparasitic activity. Among analyzed complexes, only four present a better performance compared to typically used metronidazole drug (IC50 < 6.80μmol/L) to treat amebiasis disease. For studied compounds, structure-activity relations are strongly determined by either the redox potential (E1/2) of RuII/RuIII and calculated molar volume (V) of the complexes. When you point to this article, it is believed that you are also very interested in this compound(1762-34-1)Computed Properties of C12H12N2 and due to space limitations, I can only present the most important information.

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