Thermodynamic and kinetic insights into azo dyes photocatalytic degradation on biogenically synthesized ZnO nanoparticles and their antibacterial potential.

The extensive use of azo dyes in textile and pharmaceutical industries pose significant environmental and health risks. This problem requires to be tackled forthwith through a cheap, environmentally friendly and viable approach to mitigate water pollution. In this context, the green synthesis method was used for synthesis of ZnO NPs.

Why do patients with DR-TB do not complete their treatment? Findings of a qualitative study from Pakistan.

Background: One of the major reasons for unsuccessful treatment outcomes among patients with drug-resistant tuberculosis (DR-TB) is the high rate of loss to follow-up (LTFU). However, in Pakistan, no qualitative study has been conducted to explore the perceptions of LTFU patients with regard to DR-TB treatment, the problems they face and the reasons for LTFU in detail.

Methods: This was a qualitative study that involved semistructured, indepth, face-to-face interviews of 39 LTFU patients with DR-TB.

In Silico and In Vitro Studies of 4-Hydroxycoumarin-Based Heterocyclic Enamines as Potential Anti-Tumor Agents.

The present study reports the one-step synthesis of several 3-formyl-4-hydroxycouramin-derived enamines (-) in good yields (65-94%). The characterization of the synthesized compounds was carried out via advanced analytical and spectroscopic techniques, such as melting point, electron impact mass spectrometry (EI-MS), H-NMR, C-NMR, elemental analysis, FTIR, and UV-Visible spectroscopy. The reaction conditions were optimized, and the maximum yield was obtained at 3-4 h of reflux of the reactants, using 2-butanol as a solvent.

Synthesis, Crystal Structure, DFT Calculations, Hirshfeld Surface Analysis and In Silico Drug-Target Profiling of ()-2-(2-(1,3-Dioxoisoindolin-2-yl)propanamido)benzoic Acid Methyl Ester.

The work here reflects synthesis, DFT studies, Hirshfeld charge analysis and crystal data exploration of pharmacologically important ()-2-(2-(1,3-dioxoisoindolin-2-yl)propanamido)benzoic acid methyl ester () to understand its properties for further chemical transformations. The methyl anthranilate () was produced by the esterification of anthranilic acid in an acidic medium. The phthaloyl-protected alanine () was rendered by the fusion of alanine with phthalic anhydride at 150 °C, followed by coupling with () furnished isoindole ().

Correction: Synthesis of an amantadine-based novel Schiff base and its transition metal complexes as potential ALP, α-amylase, and α-glucosidase inhibitors.

[This corrects the article DOI: 10.1039/D2RA07051K.].

Synthesis, antioxidant activity, antimicrobial efficacy and molecular docking studies of 4-chloro-2-(1-(4-methoxyphenyl)-4,5-diphenyl-1-imidazol-2-yl)phenol and its transition metal complexes.

Herein, a one-pot synthesis of tetra-substituted imidazole, 4-chloro-2-(1-(4-methoxyphenyl)-4,5-diphenyl-1-imidazol-2-yl)phenol (HL), is reported by the reaction of benzil, 5-bromosalicylaldehyde, ammonium acetate and anisidine. The synthesized imidazole was reacted with salts of 1 row transition metals (Co(ii), Ni(ii), Cu(ii), Mn(ii) and Zn(ii)) to obtain metal complexes. The structure of the compounds was confirmed using various spectroscopic and analytical techniques.

Synthesis of an amantadine-based novel Schiff base and its transition metal complexes as potential ALP, α-amylase, and α-glucosidase inhibitors.

A Schiff base ligand HL, ()-2-((adamantan-1-ylimino)methyl)-6-allylphenol, was synthesized by condensation of amantadine with 3-allyl-2-hydroxybenzaldehyde, followed by the synthesis of its Zn(ii), Co(ii), Cr(iii), and VO(iv) complexes under reflux conditions. The synthesized compounds were comprehensively elucidated by using different spectroscopic and analytical techniques: UV-Vis, H and C-NMR, FT-IR, ESI-MS, thermal, and single-crystal XRD analysis. The chemical composition of the synthesized compounds was also verified by molar conductance and elemental analysis.

Anticancer Ru and Os complexes of N-(4-chlorophenyl)pyridine-2-carbothioamide: Substitution of the labile chlorido ligand with phosphines.

Half-sandwich M(cym)Cl (cym = η-p-cymene; M = Ru, Os) complexes of pyridinecarbothioamide (PCA) ligands have demonstrated potential as orally active anticancer agents. In order to investigate the impact of the substitution of the labile chlorido ligand with phosphorous donor ligands on the antiproliferative properties, the triphenylphosphine (PPh) and 1,3,5-triaza-7-phophaadamantane (pta) analogues were prepared and characterized by spectroscopic techniques and the molecular structures of several complexes were determined by X-diffraction analysis. Interestingly, the molecular structures contained the PCA ligand deprotonated, presumably driven by the reduction in overall charge of the complex.

Enhanced photocatalytic H production under visible light on composite photocatalyst (CdS/NiSe nanorods) synthesized in aqueous solution.

Cocatalysts play a critical role in the activity and stability of photocatalytic systems. Currently, efficient cocatalysts mainly comprise of expensive noble metals. Herein we report a composite photocatalyst consisting of CdS nanorods (NRs) and noble-metal-free cocatalyst NiSe, which efficiently enhances the hydrogen production activity of CdS NRs under visible light.

Metal-Based Scaffolds of Schiff Bases Derived from Naproxen: Synthesis, Antibacterial Activities, and Molecular Docking Studies.

We report here the synthesis, characterization, and antibacterial evaluation of transition metal complexes of Ni, Cu, Co, Mn, Zn, and Cd (⁻), using a Schiff base ligand () derived from naproxen (an anti-inflammatory drug) and 5-bromosalicylaldehyde by a series of reactions. The ligand and the synthesized complexes were characterized by elemental analysis, UV-Visible, FTIR, and XRD techniques. The ligand behaves as a bidentate donor and coordinates with metals in square planar or tetrahedral fashion.

Coordination Chemistry of Organoruthenium Compounds with Benzoylthiourea Ligands and their Biological Properties.

Benzoylthiourea derivatives feature several donor atoms capable of coordinating to metal centers. We report here a series of Ru(η -p-cymene) complexes employing benzoylthiourea derivatives as ligands. Such ligands often coordinate to metal centers through their S and O donor atoms.

A Brief Review on Fluorescent Copper Sensor Based on Conjugated Organic Dyes.

The design and development of the fluorescence reporting molecules for the trace recognition of the metallic ions in the aqueous, mixed organic aqueous media, environmental specimen, living things e.g., body fluids, serum, urine etc is the evergreen research area.

Crystal structure of di-chlorido-bis-(N,N'-di-methyl-thio-urea-κS)mercury(II).

The mol-ecular structure of the title compound, [HgCl2(C3H8N2S)2], has point group symmetry 2, with the twofold rotation axis passing through the Hg(II) atom. The latter is coordinated by two Cl atoms and two N,N'-di-methyl-thio-urea (Dmtu) ligands through their S atoms, defining a distorted tetra-hedral coordination sphere with bond angles in the range 102.47 (4)-118.

Growth and antioxidant response of Brassica rapa var. rapa L. (turnip) irrigated with different compositions of paper and board mill (PBM) effluent.

Current study presents the effect of irrigation with different compositions (0%, 20%, 40%, 60%, 80% and 100%) of PBM effluent on growth and antioxidant potential of Brassica rapa var. rapa L. plants.

5-Hy-droxy-2-{(E)-[(3-nitro-phen-yl)iminio]meth-yl}phenolate.

The title compound, C(13)H(10)N(2)O(4), crystallized as the zwitterionic tautomer. As a result, the phenolate C-O(-) bond [1.296 (2) Å] is shorter than a normal Csp(2)-O(H) bond, and the azomethine C=N bond [1.

2-[(E)-N-(Adamantan-1-yl)carbox-imidoyl]-6-eth-oxy-phenol.

In the title compound, C(19)H(25)NO(2), the 3-eth-oxy-2-hy-droxy-benzaldehyde group is almost planar (r.m.s.

2-Eth-oxy-6-{(E)-[(4-methyl-phen-yl)imino]-meth-yl}phenol.

The asymmetric unit of the title compound, C(16)H(17)NO(2), contains two mol-ecules in which the dihedral angles between the 3-eth-oxy-2-hy-droxy-benzaldehyde and toluidine moieties are 16.87 (8) and 19.93 (6)°.

An economically viable method for the removal of selected divalent metal ions from aqueous solutions using activated rice husk.

Biosorption of divalent metal ions, i.e. Pb(II), Cd(II), Zn(II) and Cu(II) onto rice husk activated (RHA) is investigated over pH range (1-10) via batch adsorption technique.

Bromidobis(N,N'-diphenyl-thio-urea-κS)copper(I) monohydrate.

In the title compound, [CuBr(C(13)H(12)N(2)S)(2)]·H(2)O, the Cu(I) atom adopts a slightly distorted trigonal-planar coordination arising from two S atoms of two diphenyl-thio-urea ligands and a bromide ion. There are two intra-molecular N-H⋯Br hydrogen bonds completing twisted six-membered rings with R(6) motifs. The dihedral angles between the aromatic rings in the ligands are 62.

5-Hydr-oxy-2-methyl-4H-pyran-4-one.

The title compound, C(6)H(6)O(3), is a member of the pyrone family. The mol-ecules are planar (r.m.

A monoclinic polymorph of cysteamine hydro-chloride.

2-mercaptoethan-aminium chloride), C(2)H(8)NS(+)·Cl(-), the hydro-chloride salt of cysteamine, in contrast to the previously reported triclinic polymorph [Kim et al. (2002 ▶). Polyhedron, 21, 225-228], crystallized in the monoclinic crystal system.