P62003

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Cobalt complexes of Biginelli derivatives as fluorescent probes for selective estimation and degradation of organophosphates in aqueous medium.

Gaganpreet Kaur et al.

Dalton transactions (Cambridge, England : 2003), 47(16), 5595-5606 (2018-03-17)

The unregulated use of organophosphates (OPs) as pesticides and toxic chemical warfare agents demands their continuous monitoring from a human health perspective. This study describes a fluorescence turn-on sensing assay for the selective quantification of OPs in aqueous medium. Metal

Mixed-matrix materials using metal-organic polyhedra with enhanced compatibility for membrane gas separation.

Cressa Ria P Fulong et al.

Dalton transactions (Cambridge, England : 2003), 47(24), 7905-7915 (2018-02-16)

Discrete metal-organic polyhedra (MOPs) containing copper(ii), palladium(ii), and iron(ii) nodes were synthesized as fillers for mixed-matrix materials (MMMs) with a polyvinylidine fluoride (PVDF) polymer phase and contrasted against an MMM containing a metal-organic framework, MOF-5. When a given MOP was

Fabrication and investigation of gold (III) ion-imprinted functionalized silica particles.

Majdah R Alotaibi et al.

Journal of molecular recognition : JMR, 33(2), e2813-e2813 (2019-12-10)

Au (III) ion-imprinted mesoporous silica particles (Au-Si-Py) was manufactured by the condensation reaction of (3-Aminopropyl)triethoxysilane (AT)and 2-pyridinecarboxaldehyde (Py). The obtained AT-Py Schiff base ligand was then coordinate with the template gold ions and the polymerizable gold-complex was allowed to gel

Bacterial biodegradability of inhibitors of chiral imine type corrosion and catabolic prediction

Bautista Garcia JE, et al.

REVISTA INTERNACIONAL DE CONTAMINACION AMBIENTAL, 31(4), 415-426 (2015)

Luminescent Molecular Octopuses with a Polyhedral Oligomeric Silsesquioxane (POSS) Core and Iridium(III) Polypyridine Arms: Synthesis, Aggregation Induced Emission, Cellular Uptake, and Bioimaging Studies.

Jing-Hui Zhu et al.

Chemistry (Weinheim an der Bergstrasse, Germany), 25(45), 10633-10641 (2019-04-27)

A new class of luminescent molecular hybrids in which eight cyclometalated iridium(III) polypyridine complexes are grafted onto a polyhedral oligomeric silsesquioxane (POSS) unit [POSS-{Ir(N^C)2 (py-im)}8 ](PF6 )8 [py-im=pyridine imine; HN^C=N-phenylpyrazole (Hppz) (1 a), 2-phenylpyridine (Hppy) (2 a), 2-phenylquinoline (Hpq) (3 a)] were synthesized

Exploring the DNA interactions, FGF growth receptor interaction and biological screening of metal(II) complexes of NNN donor ligand derived from 2‑(aminomethyl)benzimidazole.

Ganesan Kumaravel et al.

International journal of biological macromolecules, 126, 1303-1317 (2018-09-24)

This work deals with a series of biologically important novel transition metal(II) Schiff base chelates containing terpyridine. Benzimidazole, a moiety found in broad spectrum of drugs is espoused in a Schiff base ligand system. Eight such metal(II) complexes are designed

Efficient synthesis of secondary amines by reductive amination of curdlan Staudinger ylides.

Ruoran Zhang et al.

Carbohydrate polymers, 171, 1-8 (2017-06-06)

Staudinger-related reactions between azides and phosphines are important in organic chemistry due to their chemoselectivity, high efficiency, and mild reaction conditions. Staudinger reduction of azides affords highly reactive iminophosphorane ylides; the reactivity of the negatively charged ylide nitrogen atom has

Mixed ligand copper(II) complexes of 1,10-phenanthroline with tridentate phenolate/pyridyl/(benz)imidazolyl Schiff base ligands: covalent vs non-covalent DNA binding, DNA cleavage and cytotoxicity.

Chandrasekaran Rajarajeswari et al.

Journal of inorganic biochemistry, 140, 255-268 (2014-09-10)

A series of copper(II) complexes of the types [Cu(L)(phen)](ClO4) 1-2, where HL is a tridentate ligand with two nitrogen and one oxygen donor atoms (2NO) such as 2-(2-(1H-benzimidazol-2-yl)ethyliminomethyl)phenol (HL1) and 2-(2-(1H-benzimidazol-2-yl)ethyl-imino)methyl)-4-methylphenol (HL2), phen is 1,10-phenanthroline and [Cu(L)(phen)](ClO4)23-6, where L is

Activation of COUP-TFI by a Novel Diindolylmethane Derivative.

Kyungsil Yoon et al.

Cells, 8(3) (2019-03-15)

Chicken ovalbumin upstream promoter-transcription factor I (COUP-TFI) is an orphan receptor and member of the nuclear receptor superfamily. Among a series of methylene substituted diindolylmethanes (C-DIMs) containing substituted phenyl and heteroaromatic groups, we identified 1,1-bis(3'-indolyl)-1-(4-pyridyl)-methane (DIM-C-Pyr-4) as an activator of

Tailoring the local environment around metal ions: a solution chemical and structural study of some multidentate tripodal ligands.

Ferenc Matyuska et al.

Dalton transactions (Cambridge, England : 2003), 46(26), 8626-8642 (2017-06-27)

Manganese(ii), copper(ii) and zinc(ii) complexes of four polydentate tripodal ligands (tachpyr (N,N',N''-tris(2-pyridylmethyl)-cis,cis-1,3,5-triaminocyclohexane), trenpyr (tris[2-(2-pyridylmethyl)aminoethyl]amine, tach3pyr (N,N',N''-tris(3-pyridylmethyl)-cis,cis-1,3,5-triaminocyclohexane) and tren3pyr (tris[2-(2-pyridylmethyl)aminoethyl]amine)) were characterized in both solution and solid states. A combined evaluation of potentiometric, UV-VIS, NMR and EPR data allowed the conclusion

Adaptable Eu-containing polymeric films with dynamic control of mechanical properties in response to moisture.

Zichao Wei et al.

Soft matter, 16(9), 2276-2284 (2020-02-11)

Self-healing polymers often have a trade-off between healing efficiency and mechanical stiffness. Stiff polymers that sacrifice their chain mobility are slow to repair upon mechanical failure. We herein report adaptable polymer films with dynamically moisture-controlled mechanical and optical properties, therefore

Metallosupramolecular Ni2L3 and Ni4L6 complexes of bis-bidentate pyridine-containing ligands: X-ray structures and catalytic proton reduction.

Chui-Shan Tsang et al.

Dalton transactions (Cambridge, England : 2003), 44(29), 13087-13092 (2015-06-25)

The pyridine-containing ligands and react with Ni(2+) ions to afford dinuclear triple-stranded helicate and tetrahedral cage supramolecular complexes, respectively; the two architectures exhibit contrasting reactivity towards electro- and photocatalytic proton reduction.

Cobalt Complex with Thiazole-Based Ligand as New Pseudomonas aeruginosa Quorum Quencher, Biofilm Inhibitor and Virulence Attenuator.

Anabela Borges et al.

Molecules (Basel, Switzerland), 23(6) (2018-06-13)

Pseudomonas aeruginosa is one of the most dreaded human pathogens, because of its intrinsic resistance to a number of commonly used antibiotics and ability to form sessile communities (biofilms). Innovative treatment strategies are required and that can rely on the

Bifunctionalized chitosan: A versatile adsorbent for removal of Cu (II) and Cr (VI) from aqueous solution

Moreira ALSL, et al.

Carbohydrate Polymers, 201, 218-227 (2018)

Ultrasensitive and Selective Sensing of Selenium Using Nitrogen-Rich Ligand Interfaced Carbon Quantum Dots.

Pooja Devi et al.

ACS applied materials & interfaces, 9(15), 13448-13456 (2017-04-01)

This work reports a label-free, ultrasensitive, and selective optical chemosensory system for trace level detection of selenite (SeO

Pyruvate aldolases in chiral carbon-carbon bond formation.

Matthew J Walters et al.

Nature protocols, 2(7), 1825-1830 (2007-07-21)

A procedure for the preparation of optically pure alpha-keto-gamma-hydroxy carboxylic acids through stereospecific aldol addition catalyzed by pyruvate aldolases from the Entner-Doudoroff and the DeLey-Doudoroff glycolytic pathways is described. This highly versatile fragment serves as a precursor for a variety

Metal-Arene Complexes with Indolo[3,2-c]-quinolines: Effects of Ruthenium vs Osmium and Modifications of the Lactam Unit on Intermolecular Interactions, Anticancer Activity, Cell Cycle, and Cellular Accumulation.

Lukas K Filak et al.

Organometallics, 32(3), 903-914 (2013-02-23)

Six novel ruthenium(II)- and osmium(II)-arene complexes with three modified indolo[3,2-c]quinolines have been synthesized in situ starting from 2-aminoindoloquinolines and 2-pyridinecarboxaldehyde in the presence of [M(p-cymene)Cl(2)](2) (M = Ru, Os) in ethanol. All complexes have been characterized by elemental analysis, spectroscopic

The influence of ZnII coordination sphere and chemical structure over the reactivity of metallo-β-lactamase model compounds.

Eduardo Guimarães Ratier de Arruda et al.

Dalton transactions (Cambridge, England : 2003), 48(9), 2900-2916 (2018-11-22)

A systematic study of the influence of the first coordination sphere over the reactivity and structure of metallo-β-lactamase (MβL) monozinc model complexes is reported. Three ZnII complexes with tripodal ligands forming the series [Zn(N-NNN)], [Zn(N-NNS)], and [Zn(N-NNO)] where N-NNX represents

Configurational and constitutional information storage: multiple dynamics in systems based on pyridyl and acyl hydrazones.

Manuel N Chaur et al.

Chemistry (Weinheim an der Bergstrasse, Germany), 17(1), 248-258 (2011-01-06)

The C=N group of hydrazones can undergo E/Z isomerization both photochemically and thermally, allowing the generation of a closed process that can be tuned by either of these two physical stimuli. On the other hand, hydrazine-exchange reactions enable a constitutional

Antitumor activity of 6-(cyclohexylamino)-1, 3-dimethyl-5(2-pyridyl)furo[2,3-d]pyrimidine-2,4(1H,3H)-dione and Its Ti(IV), Zn(II), Fe(III), and Pd(II) complexes on K562 and Jurkat cell lines.

Fahmideh Shabani et al.

Bioinorganic chemistry and applications, 501021-501021 (2009-02-05)

(6-(cyclohexylamino)-1,3-dimethyl-5(2-pyridyl)furo[2,3-d]pyrimidine-2,4(1H,3H)-dione) abbreviated as CDP was synthesized and characterized. Ti(IV), Zn(II), Fe(III), and Pd(II) metal complexes of this ligand are prepared by the reaction of salts of Ti(IV), Zn(II), Fe(III), and Pd(II) with CDP in acetonitrile. Characterization of the ligand and

Mechanism of Evolution of Koneramine Complexes from One-Pot Reactions: Snapshots of Intermediates Offer Facile Routes to New Dipicolylamines.

Sakthi Raje et al.

Chemistry, an Asian journal, 13(11), 1458-1466 (2018-04-01)

Koneramines (LR OR', R=Ph or Ts; R'=Me, iPr) and their complexes were found to emerge from the system of pyridine-2-carboxaldehyde and N-phenyl/tosylethylenediamine when a primary or secondary alcohol was used as solvent. Imidazolidinylpyridines (LR , R=Ph or Ts) became major

Mechanism of water oxidation by non-heme iron catalysts when driven with sodium periodate.

Alexander R Parent et al.

Dalton transactions (Cambridge, England : 2003), 43(33), 12501-12513 (2014-07-09)

Iron tris(2-methylpyridyl)amine (TPA) and iron 1-(bis(2-methylpyridyl)amino)-2-methyl-2-propanoate (BPyA) salts are characterized as water oxidation catalysts (WOCs) using sodium periodate. Under the conditions used, these complexes serve as homogeneous WOCs as demonstrated via kinetic analysis and dynamic light scattering (DLS). The Fe(BPyA)

Hybrid organic-inorganic chlorozincate and a molecular zinc complex involving the in situ formed imidazo[1,5-a]pyridinium cation: serendipitous oxidative cyclization, structures and photophysical properties.

Elena A Buvaylo et al.

Dalton transactions (Cambridge, England : 2003), 44(30), 13735-13744 (2015-07-08)

Two novel compounds, the organic-inorganic hybrid [L](2)[ZnCl(4)] (1) and the coordination complex LZnCl(3) (2), where L is the 2-methyl-3-(pyridin-2-yl)imidazo[1,5-a]pyridinium cation, were prepared using the oxidative condensation-cyclization of 2-pyridinecarbaldehyde and CH(3)NH(2)·HCl in methanol in the presence of Zn(2+) cations. The metal-free

Aryl variation and anion effect on CT-DNA binding and in vitro biological studies of pyridinyl Ag(I) complexes.

Adesola Abimbola Adeleke et al.

Journal of inorganic biochemistry, 214, 111266-111266 (2020-11-10)

Synthesis and spectroscopic characterization of five ligands ((E)-2-((pyridin-2-ylmethylene)amino)phenol L1, 2-(pyridin-2-yl)benzo[d]thiazole L2, (E)-N-(2-fluorophenyl)-1-(pyridin-2-yl)methanimine L3, (E)-1-(pyridin-2-yl)-N-(p-tolyl)methanimine L4 and (E)-1-(pyridin-2-yl)-N-(thiophen-2-ylmethyl)methanimine L5 along with fifteen silver(I) complexes of L1 - L5, with a general formula [AgL2]+X- (L = Schiff base and X = NO3-, ClO4- or CF3SO3-) is

Spectroscopic and biological approach of Ni (II) and Cu (II) complexes of 2-pyridinecarboxaldehyde thiosemicarbazone

Chandra S, et al.

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, 69(3), 816-821 (2008)

Metallodynamers: neutral double-dynamic metallosupramolecular polymers.

Cheuk-Fai Chow et al.

Chemistry, an Asian journal, 3(8-9), 1324-1335 (2008-07-30)

Nine neutral dynamic metallosupramolecular polymers (metallodynamers) based on acyl hydrazone derived metal coordination centers (Co(2+), Ni(2+), Zn(2+), and Cd(2+)) were generated through self-assembly polymerization. These are linear coordination polymers with specific optical and mechanical properties. Monomer selection was found to

An Efficient Protocol for the Green and Solvent-Free Synthesis of Azine Derivatives at Room Temperature Using BiCl3-Loaded Montmorillonite K10 as a New Recyclable Heterogeneous Catalyst.

K Ravi et al.

ISRN organic chemistry, 2012, 595868-595868 (2012-01-01)

A new BiCl3-loaded montmorillonite K10 catalyst has been prepared by solid dispersion method and was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and cyclic voltammetry (CV) measurements. BiCl3 loaded K10 (BiCl3-K10) has been used as solid

Bis-pyridylethenyl benzene as novel backbone for amyloid-β binding compounds.

Rob J A Nabuurs et al.

Bioorganic & medicinal chemistry, 24(23), 6139-6148 (2016-11-14)

Detection of cerebral β-amyloid (Aβ) by targeted contrast agents is of great interest for in vivo diagnosis of Alzheimer's disease (AD). Partly because of their planar structure several bis-styrylbenzenes have been previously reported as potential Aβ imaging agents. However, these

Synthesis and evaluation of copper(II) complexes with isoniazid-derived hydrazones as anticancer and antitubercular agents.

Gisele S S Firmino et al.

Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine, 29(6), 953-963 (2016-09-07)

In this study, the N,N,O metal chelator 2-pyridinecarboxaldehydeisonicotinoyl hydrazone (HPCIH, 1) and its derivatives 2-acetylpyridine-(HAPIH 2), 2-pyridineformamide-(HPAmIH, 3) and pyrazineformamide-(HPzAmIH, 4) were employed in the synthesis of four copper(II) complexes, [Cu(HPCIH)Cl

Novel latonduine derived proligands and their copper(ii) complexes show cytotoxicity in the nanomolar range in human colon adenocarcinoma cells and in vitro cancer selectivity.

Felix Bacher et al.

Dalton transactions (Cambridge, England : 2003), 48(28), 10464-10478 (2019-05-28)

Four Schiff bases derived from 7-hydrazin-yl-5,8-dihydroindolo[2,3-d][2]benzazepin-(6H)-one and its bromo-substituted analogue (HL1-HL4) and four copper(ii) complexes 1-4 have been synthesised and fully characterised by standard spectroscopic methods (1H and 13C NMR, UV-vis), ESI mass spectrometry, single crystal X-ray diffraction and spectroelectrochemistry.

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