Category: 66-71-7

Category: piperazines. 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: 1,10-Phenanthroline, is researched, Molecular C12H8N2, CAS is 66-71-7, about Understanding the role of ancillary ligands in the interaction of Ru(II) complexes with covalent arylamine-DNA adducts. Author is P., David Dayanidhi; V. G., Vaidyanathan.

The interaction between Ru(II) complexes and covalent DNA-arylamine adduct has been studied using steady-state fluorescence spectroscopy. Here, authors have used 16-mer NarI sequences with variation in next flanking bases i.e., -CG1G2CG3CX- in which X is either C or T and G is unmodified or N-acetylaminofluorene-dG (AAF-dG). To understand the effect of ancillary ligands, authors used three Ru(II) complexes [Ru(phen)2(dppz)]2+ (Ru-1), [Ru(TMP)2(dppz)]2+ (Ru-2)and [Ru(DIP)2(dppz)]2+ (Ru-3) [where phen: 1,10-phenanthroline; TMP: 3,4,7,8-tetramethyl-1,10-phenanthroline; DIP: 4,7-diphenyl-1,10-phenanthroline; dppz: dipyrido[3,2-a;2′,3′-c]phenazine]. Steady-state luminescence data shows that all the three complexes exhibit strong luminescence when it binds to AAF-dG adducts compared to unmodified control. The addition of sodium iodide to the binary mixture (Ru-oligo) improves the luminescence differential in G1 and G3 AAF adducts while it is minimal at G2. Competitive binding studies also show that the ancillary ligand in the complex Ru-2 alters the binding towards the adducted site compared to Ru-1 and Ru-3. Overall, the present study reveals that the probing of adducted site by Ru(II) complexes is dictated not only by the conformational heterogeneity of the AAF-dG adduct but ancillary ligands as well.

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Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1,10-Phenanthroline(SMILESS: C1=CC3=C(C2=NC=CC=C12)N=CC=C3,cas:66-71-7) is researched.Product Details of 3222-47-7. The article 《Multistep protection strategy for preparation of atomically dispersed Fe-N catalysts for selective oxidation of ethylbenzene to acetophenone》 in relation to this compound, is published in Catalysis Science & Technology. Let’s take a look at the latest research on this compound (cas:66-71-7).

The fabrication of catalysts with atomically dispersed metal active sites is a hot research topic in catalysis, but the controllable preparation of single-atom catalysts still presents several challenges due to the aggregation tendency of active sites. Herein, an elaborate multistep protection strategy for the preparation of atomically dispersed Fe atoms on 3-dimensional N-doped hollow C spheres was reported. Exptl. results show that the pre-separation of 1,10-phenanthroline, the anchoring effect with N sites, and the 3-dimensional hollow spherical structure of the support are crucial to achieving at. dispersion of Fe atoms. The obtained single-atom catalysts, labeled as Fe-N@HCS-T (T represents the calcination temperature), were analyzed. Fe-N@HCS-T exhibited excellent catalytic activity and selectivity for the oxidation of ethylbenzene under mild reaction conditions. Also, the prepared catalysts exhibit excellent stability and recyclability. Therefore, this study is expected to provide a feasible strategy for the design of high-efficiency single-atom catalysts for future catalytic applications.

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Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

SDS of cas: 66-71-7. 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: 1,10-Phenanthroline, is researched, Molecular C12H8N2, CAS is 66-71-7, about Synthesis of Indoles by Palladium-Catalyzed Reductive Cyclization of β-Nitrostyrenes with Phenyl Formate as a CO Surrogate. Author is Ferretti, Francesco; Fouad, Manar Ahmed; Ragaini, Fabio.

The synthesis of indoles by reductive cyclization of o-nitrostyrenes using Ph formate as a CO surrogate, using a palladium/1,10-phenanthroline complex as catalyst was recently reported. However, depending on the desired substituents on the structure, the use of β-nitrostyrenes as alternative reagents may be advantageous. The results of this study on the possibility to use Ph formate as a CO surrogate in the synthesis of indoles by reductive cyclization of β-nitrostyrenes, using PdCl2(CH3CN)2+phenanthroline as the catalyst was reported. It turned out that good results obtained when the starting nitrostyrene bears an aryl substituent in the alpha position. However, when no such substituent present, only fair yield of indole was obtained because the base required to decompose the formate also catalyzes an oligo-polymerization of the starting styrene. The reaction performed in a single glass pressure tube, a cheap and easily available piece of equipment.

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Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Reference of 1,10-Phenanthroline. 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: 1,10-Phenanthroline, is researched, Molecular C12H8N2, CAS is 66-71-7, about Design of Bis(1,10-phenanthroline) Copper(I)-Based Mechanochromic Indicators. Author is Barilone, Jessica L.; Tuma, Jiri; Brochard, Solene; Babkova, Katerina; Krupicka, Martin.

In the growing field of single-mol. mechanochromism, the potential of transition metal complexes is yet to be examined The authors synthesized [Cu(phen)2]+ complexes: bis-Cu(I)-phenanthroline, bis-Cu(I)-phenanthroline-2-amine, and bis-Cu(I)-phenanthroline-2-acetamide. After that, the authors characterized the complexes by UV-visible spectroscopy and employed d. functional theory (DFT) calculations to study the changes in UV-visible upon mech. pulling via force calculations The results of the authors′ examination of time-dependent (TD)-DFT-calculated UV-visible suggests that the bis-Cu(I)-phenanthroline-2-acetamide complex is predicted to have an observable shift of the metal-to-ligand charge transfer band upon pulling from 0 to 0.6 nN in the visible region. The authors demonstrated the ability to synthesize and characterize bis-Cu(I)-phenanthroline-2-acetamide. The TD-DFT calculations predict an observable shift in the visible region of the UV-visible spectrum. Transition metal complexes are feasible candidates as mechanophores and are worthy of further exploration as to their potential role in a new subclass of mechanochromic indicators.

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Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics

Product Details of 66-71-7. 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: 1,10-Phenanthroline, is researched, Molecular C12H8N2, CAS is 66-71-7, about Mixed ligand complexes of copper(II) with benzoyltrifluoroacetone, 1,10-phenanthroline and 2,2′-bipyridine: Structure, spectroscopic and antimicrobial properties.

Mixed ligand copper(II) complexes of Benzoyltrifluoroacetone (BTAH) with 1,10-phenanthroline (Phen) and 2,2′-bipyridine (Bipy) were synthesized and characterized. These complexes, namely [Cu(BTA)(Phen)(NO3)] (1), [Cu(BTA)(Phen)Cl] (2), [Cu(BTA)(Bipy)(NO3)] (3), [Cu(BTA)(Bipy)Cl] (4), and [Cu(BTA)(Phen)Br]•H2O (5), were characterized by elemental anal.; spectral; magnetic and molar conductance measurements; mass spectrometry; thermal anal. and antimicrobial susceptibility testing. The structures of 1 and 4 contained square pyramidal copper(II) environments. The microbiostatic activity revealed that the copper complexes showed pronounced activity in all the tested bacteria, except in Klebsiella pneumonia, Escherichia coli and Salmonella enterica in which some of the complexes were moderately active on the bacterial strains.

If you want to learn more about this compound(1,10-Phenanthroline)Product Details of 66-71-7, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(66-71-7).

Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics