Unveiling family relationships based on the context of domestic violence: a Grounded Theory.

Objective: To understand the meanings attributed to family relationships by women who have experienced domestic violence.

Method: Explanatory study using Symbolic Interactionism and Grounded Theory as references. Data were collected from March to November 2021, through online interviews with 23 women found on the social media application Facebook®.

Evaluating the inhibitory activity of ferrocenyl Schiff bases derivatives on 5-lipoxygenase: Computational and biological studies.

In the search for new 5-LOX inhibitors, two ferrocenyl Schiff base complexes functionalized with catechol ((ƞ-(E)-CH-NCH-3,4-benzodiol)Fe(ƞ-CH) (3a)) and vanillin ((ƞ-(E)-CH-NCH-3-methoxy-4-phenol)Fe(ƞ-CH) (3b)) were obtained. Complexes 3a and 3b were biologically evaluated as 5-LOX inhibitors showed potent inhibition compared to their organic analogs (2a and 2b) and known commercial inhibitors, with IC = 0.17 ± 0.

A simple graphene modified electrode for the determination of antimony(III) in edible plants and beverage.

Antimony(III) is a rare electroactive specie present on Earth, whose concentration is not typically determined. The presence of high concentrations of antimony is responsible for a variety of diseases, which makes it desirable to find convenient and reliable methods for its determination. We have developed a convenient glassy carbon modified electrode with electroreduced graphene oxide GC/rGO for the first time determination of Sb(III) in commercial lettuce, celery, and beverages.

Elucidating sensing mechanisms of a pyrene excimer-based calix[4]arene for ratiometric detection of Hg(ii) and Ag(i) and chemosensor behaviour as INHIBITION or IMPLICATION logic gates.

This article reports the synthesis and characterisation of two lower rim calix[4]arene derivatives with thiourea as spacer and pyrene or methylene-pyrene as fluorophore. Both derivatives exhibit a fluorimetric response towards Hg, Ag and Cu. Only methylene-pyrenyl derivative 2 allows for selective detection of Hg and Ag by enhancement or decrease of excimer emission, respectively.

Excited States versus Reaction Intermediates as Active Species in Photoinduced Redox Reactions of Cyrhetrenyl and Ferrocenyl Chalcones: A 351 nm Flash Photolysis Study.

The photoinduced redox reactions of two organometallic chalcones: , , (η-CHC(O)CH═CH-4-benzo-15-crown-5)Re(CO), , and , , (η-CHC(O)CH═CH-4-benzo-15-crown-5)Fe(η-CHC(O)CH═CH-4-benzo-15-crown-5), , were investigated in fluid solution using the flash photolysis technique. For a better understanding of the photoinduced redox processes of these organometallic chalcones, an electron donor, triethylamine (TEA), and an electron acceptor, methylviologen dichloride (MVCl), were chosen. Two parallel reaction paths for the decay of the intermediate , that is, the anion radical of , were observed in the presence of TEA.

Monitoring the Formation of Amyloid Oligomers Using Photoluminescence Anisotropy.

The formation of oligomeric soluble aggregates is related to the toxicity of amyloid peptides and proteins. In this manuscript, we report the use of a ruthenium polypyridyl complex ([Ru(bpy)(dpqp)]) to track the formation of amyloid oligomers at different times using photoluminescence anisotropy. This technique is sensitive to the rotational correlation time of the molecule under study, which is consequently related to the size of the molecule.

Influence of the substituent on the phosphine ligand in novel rhenium(i) aldehydes. Synthesis, computational studies and first insights into the antiproliferative activity.

Cyrhetrenyl aldehyde derivatives [(η5-C5H4CHO)Re(CO)2PR3] with R = methyl (Me, 2a), phenyl (Ph, 2b), and cyclohexyl (Cy, 2c) were synthesized by a photochemical reaction from the starting material [(η5-C5H4CHO)Re(CO)3] (1) and the corresponding phosphines. The complexes were fully characterized by FT-IR, 1H, 13C and 31P NMR spectroscopy, elemental analysis and mass spectrometry. The molecular structures of 2a-c have also been determined.

New organometallic imines of rhenium(i) as potential ligands of GSK-3β: synthesis, characterization and biological studies.

Substituted amino-piperazine derivatives were synthesized and used as precursors for the preparation of a series of new organometallic Re(i) imine complexes with the general formula [(η-CHCH[double bond, length as m-dash]N-(CH)-Pz-R)Re(CO)] (Pz-R: -alkyl or aryl piperazine). The piperazine-based ligands were designed to be potential inhibitors of GSK-3β kinase. All the ligands and complexes were fully characterized and evaluated against the HT-29 and PT-45 cancer cell lines, in which GSK-3β plays a crucial role.

Organometallic Chalcones Functioning as Radical Traps: Observations on the Solvated Electron Reduction and the C·HOH and C·HCl Addition Processes. A Time-Resolved, Mechanistic Study.

The pulse radiolysis method was used to investigate reactions between organometallic chalcones derived from ferrocene, cyrhetrene, and cymantrene substituted with a phenyl (R) or a 4'-benzo-15-crown-5 (B) moiety and the solvated electron e and two radicals. The principal spectroscopic transformations resolved with the e reactions reveal that the chalcone compounds react under a diffusion controlled condition. The chromophore in the reaction product is the radical anion chalcone, -C(═O)CH═CH-.

Adsorptive stripping voltammetry of nickel with 1-nitroso-2-napthol using a bismuth film electrode.

A sensitive procedure is presented for the voltammetric determination of nickel. The procedure involves an adsorptive accumulation of nickel 1-nitroso-2-napthol (NN) complex on a bismuth film electrode prepared ex situ by electrodeposition. The most suitable operating conditions and parameters such as pH, ligand concentration (C(NN)), adsorptive potential (E(ads)), adsorptive time (t(ads)), scan rate and others were selected and the determination of nickel in aqueous solutions using the standard addition method was possible.

Heterobimetallic Re=Pd complexes bridged by eta(1):eta(5)-Ph(2)PC(5)H(4) ligand. Synthesis, electronic and crystal structure of (CO)(2)(PR(3))(eta(5)-C(5)H(4)PPh(2))Re-PdCl(2), R = Me and OMe.

The new rhenium complexes (eta(5)-C(5)H(4)PPh(2))Re(CO)(2)(PR(3)) (R = Me (1) and OMe (2)) were prepared photochemically from (eta(5)-C(5)H(4)PPh(2))Re(CO)(3) in the presence of PMe(3) or P(OMe)(3). Further reaction of these ligands with PdCl(2)(NCPh)(2) in chloroform, produces the heterobimetallic complexes (CO)(2)(PMe(3))(eta(5)-C(5)H(4)PPh(2))Re-PdCl(2) (3) and (CO)(2)(P(OMe)(3))(eta(5)-C(5)H(4)PPh(2))Re-PdCl(2) (4). IR spectroscopy reveals that both complexes possess a Re-Pd interaction which was confirmed by X-ray crystallography (Re-Pd bond distance = 2.

Synthesis, reactivity and molecular structure of phosphino tetramethyl cyclopentadienyl complex (eta5: eta1-C5Me4CH2PPh2)Re(CO)2.

The fulvene complex (eta(6)-C(5)Me(4)CH(2))Re(C(6)F(5))(CO)(2) reacts at the exocyclic methylene carbon with potassium diphenylphosphide to yield the anionic species [(eta(5)-C(5)Me(4)CH(2)PPh(2))Re(C(6)F(5))(CO)(2)](-) (). Protonation of with HCl at 0 degrees C produces the hydride complex trans-(eta(5)-C(5)Me(4)CH(2)PPh(2))Re(C(6)F(5))(H)(CO)(2) (). Thermolysis of a hexanes solution of , under nitrogen atmosphere, produces the chelated complex (eta(5):eta(1)-C(5)Me(4)CH(2)PPh(2))Re(CO)(2) () in good yield.