Tag: M.W:100-200

HPLC of Formula: 1762-34-1. 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 Water-stable Zn-based metal-organic framework with hydrophilic-hydrophobic surface for selective adsorption and sensitive detection of oxo-anions and pesticides in aqueous medium. Author is Kaur, Harpreet; Walia, Sidharth; Karmakar, Anirban; Krishnan, Venkata; Koner, Rik Rani.

Given the importance of surface-functionalized materials with improved adsorption and detection properties for targeted applications, we report herein the design and development of a water-stable luminescent Zn-based metal-organic framework (Zn-MOF) with the hydrophobic-hydrophilic surface property. The developed luminescent Zn(II)-MOF {[Zn(PA2-)(dmbpy)](DMF)}n was synthesized via a solvothermal method using pamoic acid (PA) and 5,5′-dimethyl-2,2′-bipyridine (dmbpy) with free functional groups (hydroxyl and Me groups). Careful single-crystal structure anal. revealed a 3-dimensional hydrogen-bonded network with a one-dimensional channel and functionalized surface. The surface functionalization was achieved through rational choice of ligands bearing Me and hydroxyl groups as suitable hydrophobic and hydrophilic functionalities resp., leading to a stable MOF in the aqueous medium. The MOF was used as an adsorbent for selective adsorption of monovalent permanganate anion (MnO4-) over other polyvalent oxo-anions as well as an optical platform for the detection of oxo-anions (permanganate (MnO-4), dichromate (Cr2O72-) and chromate (CrO42-)) and pesticide (2,6-dichloro-4-nitroaniline (2,6-DCNA)) in the aqueous medium. Overall, a combination of luminescent nature and hydrophilic-hydrophobic surface property makes the developed Zn-MOF an interesting platform for environmental application.

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

Safety of 5,5′-Dimethyl-2,2′-bipyridine. 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 Copper-functionalized nanostructured silica-based systems: Study of the antimicrobial applications and ROS generation against gram positive and gram negative bacteria. Author is Diaz-Garcia, Diana; Ardiles, Perla R.; Diaz-Sanchez, Miguel; Mena-Palomo, Irene; del Hierro, Isabel; Prashar, Sanjiv; Rodriguez-Dieguez, Antonio; Paez, Paulina L.; Gomez-Ruiz, Santiago.

A series of copper-functionalized SBA-15 (Santa Barbara Amorphous) materials containing the ligands triethoxysilylpropylmaleamic acid (maleamic) or triethoxy-3-(2-imidazolin-1-yl)propylsilane (imidazoline) have been prepared The nanostructured silica-based systems SBA-maleamic, SBA-imidazoline, SBA-maleamic-Cu and SBA-imidazoline-Cu were characterized by several methods observing that the functionalization took place mainly inside the pores of the mesoporous system. The antimicrobial behavior of the synthesized materials against Staphylococcus aureus and Escherichia coli was tested observing a very potent activity of the copper-functionalized systems (min. inhibitory concentration (MIC) and min. bactericidal concentration (MBC) values for SBA-maleamic-Cu of ca. 31.25 μg/mL, which correspond with ca. 1.13 μg/mL of Cu). A study of the oxidative stress promoted by the synthesized materials showed that the SBA-maleamic-Cu and the SBA-imidazoline-Cu were able to increase the reactive oxygen species (ROS) production in S. aureus by 427% and 373%, resp., while this increase was slightly lower in E. coli (387 and 324%, resp.). Furthermore, an electrochem. study was carried out in order to determine if these materials interact with lysine or alanine to validate a potential antimicrobial mechanism based on the inhibition of the synthesis of the peptidoglycan of the bacterial wall. Finally, these studies were also performed to determine the potential interaction of the copper-containing materials with glutathione in order to assess if they are able to perturb the metabolism of this tripeptide.

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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, ACS Catalysis called Dual Catalytic Platform for Enabling sp3 α C-H Arylation and Alkylation of Benzamides, Author is Rand, Alexander W.; Yin, Hongfei; Xu, Liang; Giacoboni, Jessica; Martin-Montero, Raul; Romano, Ciro; Montgomery, John; Martin, Ruben, the main research direction is benzamide arylation alkylation chemoselective enantioselective photoredox.Safety of 5,5′-Dimethyl-2,2′-bipyridine.

A dual catalytic sp3 α C-H arylation and alkylation of benzamides with organic halides is described. This protocol exhibits an exquisite site selectivity, chemoselectivity, and enantioselectivity pattern, offering a complementary reactivity mode to existing sp3 arylation or alkylations via transition metal catalysis or photoredox events.

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

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Bipyridine-Directed Syntheses of Uranyl Compounds Containing Semirigid Dicarboxylate Linkers: Diversity and Consistency in Uranyl Speciation.Name: 5,5′-Dimethyl-2,2′-bipyridine.

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

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 Syntheses, structures and photocatalytic properties of ruthenium(II) complexes supported by a tetradentate cyclen ligand (cyclen = 1,4,7,10-tetraazacyclododecane), the main research direction is tetradentate cyclen tetraazacyclododecane ruthenium nitrogen ligand complex preparation electrochem; crystal mol structure tetraazacyclododecane ruthenium nitrogen ligand complex.HPLC of Formula: 1762-34-1.

Treatment of [(cyclen)RuCl(dmso)]Cl (cyclen = 1,4,7,10-tetraazacyclododecane, dmso = dimethylsulfoxide, 1) with zinc powder in the presence of potassium hexafluorophosphate or sodium perchlorate in acetonitrile afforded the cationic complexes [(cyclen)Ru(dmso)(MeCN)]Q2 (Q = PF6 (2), ClO4 (3)). Interaction of 1, zinc powder and 4-tert-butylpyridine or pyridine in the presence of triethylamine and sodium perchlorate gave pyridine-ruthenium(II) complexes Na[(cyclen)Ru(dmso)(4-tBupy)](ClO4)3 (4) and [(cyclen)Ru(py)2](ClO4)2 (5), resp. While reactions of 1, zinc powder and 1,10-phenanthroline (phen) or 5,5′-dimethyl-2,2′-bipyridine (5,5′-Me2bpy) in the presence of triethylamine and potassium hexafluorophosphate gave bipyridine-ruthenium(II) complexes [(cyclen)Ru(phen)](PF6)2 (6) and [(cyclen)Ru(5,5′-Me2bpy)](PF6)2 (7), resp. Complexes 1-7 are characterized by IR, UV/Vis, NMR spectroscopies along with their electrochem. properties. The mol. structures of complexes 1-7 have been established by single-crystal x-ray diffraction. The photocatalytic properties of complexes 6 and 7 with a large π-electron delocalized system for the H2 evolution by water reduction were also investigated in the paper.

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

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Inorganic Chemistry Communications called D/L-mandelic acid-based three new Pb(II) coordination polymers: Influence of temperature and 5,5′-dimethyl-2,2′-dipyridyl ancillary ligand on constructuring enantiomeric coordination polymers, Author is Li, Xin; Feng, Qi; Liu, Manyu; Deng, Qianying; Jia, Zihan; Sun, Yangqian; Zuo, Xin; Shi, Junjie; Song, Hui-Hua; Yu, Hai-Tao, which mentions a compound: 1762-34-1, SMILESS is CC1=CN=C(C=C1)C1=NC=C(C)C=C1, Molecular C12H12N2, Recommanded Product: 5,5′-Dimethyl-2,2′-bipyridine.

Three new Pb(II) coordination polymers, namely [Pb2(mand)2]n (1), {[Pb(L-Hmand)(NO3)(5,5′-DM-2,2′-bipy)]·2H2O}n (2-L), {[Pb(D-Hmand)(NO3)(5,5′-DM-2,2′-bipy)]·2H2O}n (2-D) (H2mand = D/L-mandelic acid, 5,5′-DM-2,2′-bipy = 5,5′-dimethyl-2,2′-bipyridyl), have been prepared Their structures have been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, powder X-ray diffraction and thermogravimetric analyses. Complex 1 crystallizes in the triclinic system with space group P-1, and displays a 2D layer structure. Complexes 2-L and 2-D are pairs of enantiomers. They crystallize in the same chiral space group P212121 and feature a 1D chain structure. The influence of the temperature and steric-hindrance of 5,5′-dimethyl-2,2′-dipyridyl mols. on constructing enantiomeric Pb(II) coordination polymers based on chiral mandelic acid ligands have been demonstrated. In addition, the CD (CD) spectroscopy of 2-L and 2-D exhibit obvious pos. or neg. Cotton effects indicating their homochirality. The luminescent properties of 1, 2-L and 2-D in the solid state have also been investigated.

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

Application In Synthesis of 5,5′-Dimethyl-2,2′-bipyridine. 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. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Two low-dimensional transition metal coordination polymers constructed from thiophene-2,5-dicarboxylic acid and N/O-donor ligands: Syntheses, structures and magnetic property.

Two low-dimensional transition metal coordination polymers (CPs), namely, Co(TDC)(Hdmea)2 (1), [Mn(TDC)(5,5′-dmbpy)(H2O)]n (2) (H2TDC = thiophene-2,5-dicarboxylic acid, Hdmea = N,N-dimethylethanolamine, 5,5′-dmbpy = 5,5′-dimethyl-2,2′-dipyridyl) have been synthesized and characterized. Compound 1 which is the first coordination compound containing the H2TDC and chelating Hdmea ligands so far features an isolated structure containing the centrosym. dinuclear [Co(TDC)(Hdmea)2]2 unit. Notably, the imidazole ligand as one of the reactants is not incorporated into the final structure of compound 1, but it is important to obtain the single crystals suitable for single-crystal X-ray diffraction anal. Compound 2 possesses a one-dimensional (1D) zigzag chain based on the [Mn(TDC)(5,5′-dmbpy)(H2O)] building unit. In addition, the magnetic property of compound 2 is investigated.

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

Kondori, Tahere; Akbarzadeh-T, Niloufar; Ghaznavi, Habib; Karimi, Zeinab; Sheervalilou, Roghayeh; Dusek, Michal; Eigner, Vaclav; Shahraki, Omolbanin published the article 《Structure analysis and biological functionalities of a nickel(II) complex and its sonochemically synthesized nano form: in vitro anti-proliferation, DNA binding, antibacterial and molecular docking study》. Keywords: nickel methylbipyridine thiocyanate complex preparation crystal structure; DNA binding nickel methylbipyridine thiocyanate complex nanoparticle; antibacterial anticancer antioxidant activity nickel methylbipyridine thiocyanate complex.They researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).COA of Formula: C12H12N2. 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.

A compound of {[Ni(5,5′-Dimethyl-2,2′-bipyridine)3](SCN)2}2(a) was synthesized and characterized by FTIR, UV-visible spectroscopy, elemental anal., luminescence and x-ray crystallog. The single crystals were obtained by slow crystallization from a methanol solution The complex is composed of nickel cation chelated by three neutral bipyridine ligands and two (SCN-) ions outside the coordination sphere. The nano form of the synthesized complex (b) was prepared by a sonochem. process and confirmed with XRD, SEM and FTIR. The average size of the particles was 37 nm from SEM. Thermodn. parameters (ΔH°, ΔS° and ΔG°) calculated from FS-DNA interaction of complexes showed that hydrogen bonding and van der Waals interactions have an essential function in the interaction of DNA-Ni(II) complex, and the interaction mode is groove binding. Viscosity measurement illustrated that relative viscosity of DNA remained unchanged with the adding concentrations of complexes. CD spectra showed that the structure of DNA was changed. The antibacterial properties were investigated in vitro against standard Gram-pos. and Gram-neg. bacterial strains. The results of antibacterial tests showed that (a) was a stronger antibacterial agent than the free ligand, and that the antibacterial effect of (b) was stronger than the one of (a). The cytotoxicity activity experiments against MCF-7, KB and A549 cells revealed low to moderate antiproliferative activity of the complex (b) against cancer cells. The mol. docking results exhibited groove mode of binding, confirming previously obtained data from spectroscopy, viscometry and CD.

This literature about this compound(1762-34-1)COA of Formula: C12H12N2has given us a lot of inspiration, and I hope that the research on this compound(5,5′-Dimethyl-2,2′-bipyridine) can be further advanced. Maybe we can get more compounds in a similar way.

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 Bipyridine-Directed Syntheses of Uranyl Compounds Containing Semirigid Dicarboxylate Linkers: Diversity and Consistency in Uranyl Speciation, the main research direction is uranyl phenylsulfonecarboxylate pyridine complex preparation photoluminescence; crystal structure uranyl phenylsulfonecarboxylate pyridine.COA of Formula: C12H12N2.

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

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ) is researched.Safety of 5,5′-Dimethyl-2,2′-bipyridine.Zhu, Min-Min; Cui, Jing; Zeng, Yan-Li; Ren, Ning; Zhang, Jian-Jun published the article 《Two novel Sm(III) complexes with different aromatic carboxylic acid ligands: Synthesis, crystal structures, luminescence and thermal properties》 about this compound( cas:1762-34-1 ) in Polyhedron. Keywords: preparation crystal structure samarium aromatic carboxylate bipyridine complex; thermal decomposition samarium aromatic carboxylate bipyridine complex; antibacterial activity samarium aromatic carboxylate bipyridine complex; luminescence samarium aromatic carboxylate bipyridine complex. Let’s learn more about this compound (cas:1762-34-1).

Two novel Sm(III) complexes, [Sm(3,4-DMBA)3(3,4-DMHBA)(5,5′-DM-2,2′-bipy)]2 (1), [Sm(3-MOBA)3(5,5′-DM-2,2′-bipy)]2 (2) (3,4-dimethylbenzoic acid = 3,4-DMHBA, 3-methoxybenzoic acid = 3-MOHBA and 5,5′-dimethyl-2,2′-bipyridine = 5,5′-DM-2,2′-bipy), were successfully synthesized and assembled. The crystal structures were determined by single crystal x-ray diffraction. Two complexes were characterized by the elemental anal., IR, powder x-ray diffraction, thermal gravimetric technol. Because of the different ligands, the structures of the two complexes are very different, especially the structure of the complex 1. Each central Sm(III) ion of complex 1 was coordinated by three deprotonated 3,4-DMBA-,one unprotonated 3,4-DMHBA and one 5,5′-DM-2,2′-bipy, which has rarely been reported before. However each central Sm(III) ion of complex 2 was only coordinated via three deprotonated 3-MOBA- and one 5,5′-DM-2,2′-bipy. In addition, the thermal decomposition mechanism and the three-dimensional IR accumulation spectra of the evolved gas during the thermal decomposition for two complexes were studied by the simultaneous TG/DSC-FTIR technol. What’s more, the luminescence properties of two complexes are also discussed. Finally, the bacteriostatic activities of two complexes were evaluated against Staphlococcus aureus, Escherichia coli and Candida albicans.

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