Category: 34302-69-7

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: 34302-69-7, is researched, Molecular C28H26N4O, about Novel zero-dimensional lead-free bismuth based perovskites: from synthesis to structural and optoelectronic characterization, the main research direction is bismuth perovskite synthesis optoelectronic property.Reference of 2,9-Dimethyl-1,10-phenanthroline hemihydrate.

Despite high photo-conversion efficiency, the short long-term stability and toxicity issues have prevented lead-based perovskites from becoming the standard in high efficiency solar cells. Hence, lead-free perovskites with low inorganic framework dimensionality have attracted great attention because of their optoelectronic properties and superior stability. In this work, we present a combined exptl. and theor. investigation of the structural and optoelectronic properties of three novel highly stable zero-dimensional perovskites (discrete connectivity of the inorganic framework), where fused octahedra [BixIy]z- are interspersed by large organic cations: H2bpy2+ for 1, Hdmphen+ for 2 and the combination of H2terpy+2 and Hterpy+ for 3 (bpy = 4,4-bipyridine, dmphen = 2,9-dimethyl-1,10-phenanthroline, terpy = 2,2′;6′,2”-terpyridine). In each of these compounds, the inorganic moieties display different morphologies, either edge-sharing bi-octahedra (Bi2I104-, 1), face-sharing bi-octahedra (Bi2I93-, 2) or isolated octahedra (BiI63-, 3). The consistent results of exptl. and theor. characterization reveal that distortions in the coordination octahedra are most prominent as the number of shared iodide species increases. The exptl. optical response presents similar trends between all three materials, which is dominated by transitions inside the octahedron, while the transitions between cations and anionic bismuth-iodide clusters displayed very low intensity at a lower photon energy, an aspect that was described qual. well by theor. characterization. Overall, these materials show different potential prospects, such as application in hybrid dimensional materials, acting as dielecs. for instance, or as a source of Bi for the synthesis of other lead-free perovskites.

This compound(2,9-Dimethyl-1,10-phenanthroline hemihydrate)Reference of 2,9-Dimethyl-1,10-phenanthroline hemihydrate was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2,9-Dimethyl-1,10-phenanthroline hemihydrate( cas:34302-69-7 ) is researched.COA of Formula: C28H26N4O.Ueno, Keihei; Saito, Mikihiko; Iwano, Hidekazu published the article 《Melting point of 2,9-dimethyl-1,10-phenanthroline》 about this compound( cas:34302-69-7 ) in Talanta. Keywords: melting temperature hydration phenanthroline. Let’s learn more about this compound (cas:34302-69-7).

Although the hemihydrate and the dihydrate of 2,9-dimethyl-1,10-phenanthroline (I) showed reliable m.ps. (159-60 and 140-1°, resp.), samples of I at intermediate stages of hydration had m.ps. varying somewhat randomly between 141 and 159°.

《Melting point of 2,9-dimethyl-1,10-phenanthroline》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(2,9-Dimethyl-1,10-phenanthroline hemihydrate)COA of Formula: C28H26N4O.

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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.Peterson, Anna; Kaabel, Sandra; Kahn, Iiris; Pehk, Tonis; Aav, Riina; Adamson, Jasper researched the compound: 2,9-Dimethyl-1,10-phenanthroline hemihydrate( cas:34302-69-7 ).Name: 2,9-Dimethyl-1,10-phenanthroline hemihydrate.They published the article 《Unsubstituted Oxacalix[n]arenes (n=4 and 8): A Conformational Study in Solution and Solid State and Interaction Studies with Aromatic Guests》 about this compound( cas:34302-69-7 ) in ChemistrySelect. Keywords: oxacalixarene conformation crystal structure benzoic acid ferrocene inclusion reaction. We’ll tell you more about this compound (cas:34302-69-7).

We present single crystal structures of unsubstituted oxacalix[4]arene and oxacalix[8]arene macrocycles and investigate the weak supramol. interactions that govern their packing in the solid state. We further show that the unsubstituted oxacalix[4]arene shows weak complexation with two aromatic guest species, benzoic acid and ferrocene, in CDCl3, whereas the oxacalix[8]arene host does not complex with these guest mols. We also present NMR titration experiments with non-aromatic acids and DFT calculations that signify the importance of π-π interactions for complexation with benzoic acid. Weak complexation is also observed between electron-rich aromatic guest mols. and the unsubstituted oxacalix[4]arene host.

The article 《Unsubstituted Oxacalix[n]arenes (n=4 and 8): A Conformational Study in Solution and Solid State and Interaction Studies with Aromatic Guests》 also mentions many details about this compound(34302-69-7)Name: 2,9-Dimethyl-1,10-phenanthroline hemihydrate, you can pay attention to it, because details determine success or failure

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Zhou, Peng; Zhang, Jing; Zhang, Yongli; Liang, Juan; Liu, Ya; Liu, Bei; Zhang, Wei published the article 《Activation of hydrogen peroxide during the corrosion of nanoscale zero valent copper in acidic solution》. Keywords: activation hydrogen peroxide corrosion nanoscale zeroValent copper acidic wastewater.They researched the compound: 2,9-Dimethyl-1,10-phenanthroline hemihydrate( cas:34302-69-7 ).Computed Properties of C28H26N4O. 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:34302-69-7) here.

Activation of H2O2 and its mechanism were studied during corrosion of nanoscale 0-valent Cu (nZVC) in acidic aqueous solutions As the radical probe compound, benzoic acid (BA) degradation was completely achieved after 25 min in the nZVC/H2O2 system at initial pH 3.0. H2O2 can accelerate the corrosion of nZVC to release Cu+ resulting in the further activation of H2O2via a Fenton-like reaction in acidic aqueous solution The released Cu+ during the corrosion of nZVC is the main effective copper species to activate H2O2 to produce ·OH in the nZVC/H2O2 system. Hydroxyl radical (·OH) was verified as the primary reactive oxidant which is responsible for BA degradation in the nZVC/H2O2 system owing to the intense inhibition of BA degradation with the addition of excess tert-Bu alc. (TBA). Acidic aqueous solutions facilitate the degradation of BA and optimum initial pH for BA degradation is 3.0. Higher nZVC dosage could enhance the degradation rate of BA. This study put forward an interesting idea to make full use of intermediate Cu+ to activate H2O2 during corrosion of nZVC to degrade organic contaminants.

After consulting a lot of data, we found that this compound(34302-69-7)Computed Properties of C28H26N4O can be used in many types of reactions. And in most cases, this compound has more advantages.

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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: 2,9-Dimethyl-1,10-phenanthroline hemihydrate, is researched, Molecular C28H26N4O, CAS is 34302-69-7, about Structure of 2,9-dimethyl-1,10-phenanthroline hemihydrate.Computed Properties of C28H26N4O.

The title compound is tetragonal, space group I41/a, with a 14.258(3) and c = 22.286(4) Å; dc = 1.274(1) for Z = 16; final R = 0.041 for 1196 reflections. At. coordinates are given. Pairs of dimethylphenanthroline mols. related by a 2-fold axis are bridged by water mols. lying on the 2-fold axis and H bonded to one of the N atoms in each mol. The H bonds are long and far from linear; O-H 1.06(4), H…N 2.0(4), O…N 3.020(3) Å; O-H…N 154(3)°. This is presumably a consequence of the approx. parallel arrangement of the 2 phenanthroline mols. in the (phen)2.H2O complex, which are tilted 4.7(1)° with respect to each other; the atoms in 1 mol. are 3.50 to 3.81 Å from the plane of the other mol. On the other side of the phenanthroline is another phenanthroline related by a center of symmetry with the atoms of one mol. 3.41 to 3.45 Å from the plane of the other mol. The phenanthroline mol. has close to 2mm symmetry, but the individual C6 rings are tilted ∼1° with respect to each other.

After consulting a lot of data, we found that this compound(34302-69-7)Computed Properties of C28H26N4O can be used in many types of reactions. And in most cases, this compound has more advantages.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Infrared spectra of 2,9-dimethyl-1,10-phenanthroline, its hydrates and acid perchlorate》. Authors are Grigg, E. C. M.; Hall, J. R.; Plowman, R. A..The article about the compound:2,9-Dimethyl-1,10-phenanthroline hemihydratecas:34302-69-7,SMILESS:CC1=CC=C2C=CC3=CC=C(C)N=C3C2=N1.[H]O[H].CC4=CC=C5C=CC6=CC=C(C)N=C6C5=N4).Formula: C28H26N4O. Through the article, more information about this compound (cas:34302-69-7) is conveyed.

Bands, 1610-1545 cm.-1, are attributed to stretching vibrations within the phenanthroline ring system. The in-phase out-of-plane motion of the ring H atoms is associated with intense absorption at 845 cm.-1 There is a strong band at 728 cm.-1, not due to out-of-plane CH deformation. The strongest bonds are shifted in the perchlorate spectrum.

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Safety of 2,9-Dimethyl-1,10-phenanthroline hemihydrate. 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: 2,9-Dimethyl-1,10-phenanthroline hemihydrate, is researched, Molecular C28H26N4O, CAS is 34302-69-7, about Copper-Catalyzed Formal [3 + 3] Annulations of Arylketoximes and o-Fluorobenzaldehydes: An Entry to Quinoline Compounds. Author is Xu, Zhenhua; Chen, Hongbiao; Deng, Guo-Jun; Huang, Huawen.

A copper-based catalytic system had been developed to enable efficient cyclization of ketoxime acetates with o-fluorobenzaldehydes to obtain benzo[c]acridines I [R = H, 9-Me, 2-Br, etc.]. This protocol offered an efficient method for the synthesis of substituted quinoline derivatives with a broad range of compatible functionalities. The present system also provided a rapid access to synthetically and pharmaceutically useful quinoline-fused polycycles such as benzo[c]acridines.

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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 The Performance-Determining Role of Lewis Bases in Dye-Sensitized Solar Cells Employing Copper-Bisphenanthroline Redox Mediators, published in 2020-10-07, which mentions a compound: 34302-69-7, mainly applied to copper bisphenanthroline dye sensitized solar cell, Recommanded Product: 2,9-Dimethyl-1,10-phenanthroline hemihydrate.

Copper redox mediators have enabled open-circuit voltages (VOC) of over 1.0 V in dye-sensitized solar cells (DSCs) and have helped to establish DSCs as the most promising solar cell technol. in low-light conditions. The addition of additives such as 4-tert-butylpyridine (tBP) to these electrolytes has helped in achieving high solar cell performances. However, emerging evidence suggests that tBP coordinates to the Cu(II) species and limits the performance of these electrolytes. To date, the implications of this coordination are poorly understood. Here, the importance of Lewis base additives for the successful implementation of copper complexes as redox mediators in DSCs is demonstrated. Two redox couples, [Cu(dmp)2]+/2+ and [Cu(dpp)2]+/2+ (with dmp = 2,9-dimethyl-1,10-phenanthroline and dpp = 2,9-diphenyl-1,10-phenanthroline) in combination with three different Lewis bases, TFMP (4-(trifluoromethyl)pyridine), tBP, and NMBI (1-methyl-benzimidazole), are considered. Through single-crystal X-ray diffraction anal., absorption, and 1H-NMR spectroscopies, the coordination of Lewis bases to the Cu(II) centers are studied. This coordination efficiently suppresses recombination losses and is crucial for high performing solar cells. If, however, the coordination involves a ligand exchange, as is the case for [Cu(dpp)2]+/2+, the redox mediator regeneration at the counter electrode is significantly retarded and the solar cells show current limitations.

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Product Details of 34302-69-7. 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: 2,9-Dimethyl-1,10-phenanthroline hemihydrate, is researched, Molecular C28H26N4O, CAS is 34302-69-7, about Synthesis of 1,2-Disubstituted Indoles from α-Aminonitriles and 2-Halobenzyl Halides.

The α-alkylation of deprotonated Strecker products derived from primary amines and aromatic aldehydes with 2-halobenzyl halides furnishes intermediates that can be cyclized to 1,2-disubstituted indoles in moderate to high yields (up to 94% over two steps) by microwave-assisted copper- or palladium-catalyzed intramol. cross-coupling.

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Quality Control of 2,9-Dimethyl-1,10-phenanthroline hemihydrate. 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: 2,9-Dimethyl-1,10-phenanthroline hemihydrate, is researched, Molecular C28H26N4O, CAS is 34302-69-7, about Exploiting the vulnerable active site of a copper-only superoxide dismutase to disrupt fungal pathogenesis. Author is Robinett, Natalie G.; Culbertson, Edward M.; Peterson, Ryan L.; Sanchez, Hiram; Andes, David R.; Nett, Jeniel E.; Culotta, Valeria C..

Copper-only superoxide dismutases (SODs) represent a new class of SOD enzymes that are exclusively extracellular and unique to fungi and oomycetes. These SODs are essential for virulence of fungal pathogens in pulmonary and disseminated infections, and we show here an addnl. role for copper-only SODs in promoting survival of fungal biofilms. The opportunistic fungal pathogen Candida albicans expresses 3 copper-only SODs, and deletion of 1 of them, SOD5, eradicated candidal biofilms on venous catheters in a rodent model. Fungal copper-only SODs harbor an irregular active site that, unlike their Cu,Zn-SOD counterparts, contains a copper co-factor unusually open to solvent and lacks zinc for stabilizing copper binding, making fungal copper-only SODs highly vulnerable to metal chelators. Unlike mammalian Cu,Zn-SOD1, C. albicans SOD5 indeed rapidly loses its copper to metal chelators such as EDTA, and binding constants for Cu(II) predict that copper-only SOD5 has a much lower affinity for copper than does Cu,Zn-SOD1. We screened compounds with a variety of indications and identified several metal-binding compounds, including the ionophore pyrithione zinc (PZ), that effectively inhibit C. albicans SOD5 but not mammalian Cu,Zn-SOD1. PZ both acts as an ionophore that promotes uptake of toxic metals and inhibits copper-only SODs. The pros and cons of a vulnerable active site for copper-only SODs and the possible exploitation of this vulnerability in antifungal drug design are discussed.

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