Showing papers in "Phosphorus Sulfur and Silicon and The Related Elements in 2021"

Poly(butylene disulfide) and poly(butylene tetrasulfide): Synthesis, cure and investigation of polymerization yield and effect of sulfur content on mechanical and thermophysical properties

Abstract: In this work, two polysulfide polymers were synthesized by use of 1,4-dichlorobutane and aqueous sodium disulfide or sodium tetrasulfide. The polymers were cured at 85 °C. The structural characteri...

Physical vapor deposition of SnS:PbS-dithiocarbamate chalcogenide semiconductor thin films: elucidation of optoelectronic and electrochemical features

Abstract: This work reports the first investigation on the physical vapor deposition of thin films of tin sulfide doped lead sulfide (SnS:PbS). In-situ synthesis route using diethyldithiocarbamate (DTC) liga...

The bioavailability of phosphorus in composite vs. hybrid maize differ with phosphorus and boron fertilization

Abstract: Food and feed demand is increasing for an increased population which needs continuous cropping of forages and crops which removes the maximum amount of Phosphorus (P) and Boron (B) from the soil, w...

WEB (water extract of banana): An efficient natural base for one-pot multi-component synthesis of 2-amino-3,5-dicarbonitrile-6-thio-pyridines

Abstract: One-pot multi-component synthesis of 2-amino-3,5-dicarbonitrile-6-thio-pyridines derivatives using WEB (water extract of banana peels ash) as a green catalyst is described. A variety of aromatic al...

A review on biological and medicinal significance of thiazoles

Abstract: Thiazole, a five-membered heterocyclic compound constitutes the skeleton of various commercially marketed drug candidates and the heart-core in a diverse range of entities of biological and medicin...

A first-principles DFT study on the adsorption behaviour of CO, CO2, and O3 on pristine B24N24 and silicon-decorated B24N24 nanosheet

Abstract: Abstract Using first-principles within density functional (DFT) theory, adsorption of CO, CO2, and O3 gas molecules on pristine B24N24 (BN) and Silicon-decorated B24N24 (SiBN) nanosheets has been investigated. Adsorption energies, Mulliken charge, dipole moments, and global indicies are estimated to predict the adsorption behavior of CO, CO2, and O3 by using DFT method at 6-31 G (d, p)/B3LYP level. After silicon doping, unlike CO and CO2, sensing performance improves for the case of O3. The findings reveal that the interaction between O3 and SiBN is stronger than that between O3 and bare BN, suggesting that silicon helps to strengthen the interaction of O3 molecule with BN nanosheet. DFT calculations clearly indicate that the Si-doped BN nanosheet would be a promising O3 gas sensor. To prove the successful interactions among the adsorbents (BN and SiBN) and adsorbates (CO, CO2, and O3), the UV-vis spectra have been analyzed for every system where both the blue shift and red shift have been confirmed. Finally, it can be said that pristine BN nanosheet is a better sensor than SiBN for CO, CO2 gas molecules while SiBN is better for O3 molecules. Graphical Abstract

Quinazoline clubbed thiazole and 1,3,4-oxadiazole heterocycles: synthesis, characterization, antibacterial evaluation, and molecular docking studies

Abstract: In search of potent antibacterial agents, a series of novel quinazolines, bearing thiazole and 1,3,4-oxadiazole heterocycles 6a–j (3-(4-methyl-5-(4-((arylamino)methyl)-5-thioxo-4,5-dihydro-1,3,4-ox...

Synthesis of α-aminophosphonates by the Kabachnik-Fields reaction

Abstract: The review discusses recent achievements in the development of more ecofriendly and economically viable processes for the synthesis of biologically potent α-aminophosphonates via Kabachnik-Fields r...

Synthesis and anticancer properties of 2-aminothiazole derivatives

Abstract: 2-Aminothiazole derivatives exhibit versatile biological properties. Numerous compounds containing this unit have been synthesized and described in the literature. Probably, most of the synthesized...

Pentacoordinated diorganotin(IV) complexes resulting from tridentate (NOO) donor Schiff bases: Synthesis, characterization, in vitro antioxidant, antimicrobial activities, and QSAR studies

Abstract: A series of diorganotin(IV) complexes of type R2SnL, (where R = Me, Et, Bu and Ph) were prepared by the reaction of tridentate (NOO) donor Schiff base ligands with diorganotin(IV) dichloride in an ...

Fluorinated phosphoric acid as a versatile effective catalyst for synthesis of series of benzimidazoles, benzoxazoles and benzothiazoles at room temperature

Abstract: The present work describes synthesis of a series of benzimidazoles, benzoxazoles and benzothiazoles through the cyclization of 1, 2-phenylenediamine, 2-aminothiophenol, or 2-aminophenol with aryl, ...

One-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones, thiones and 2-selenoxo DHPMs using 1-butyl-3-methylimidazolium hydrogen sulfate as non-halogenated ionic liquid

Abstract: 1-Butyl-3-methylimidazolium hydrogen sulfate ([BMIM][HSO4]) as a non-halogenated ionic liquid (IL) was used for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and thiones or 2-selenoxo DHPMs in a...

One-pot synthesis of sulfonyl-1H-1,2,3-triazolyl-thiomorpholine 1,1-dioxide derivatives and evaluation of their biological activity

Abstract: A one-pot procedure for the synthesis of novel 1,2,3-triazole derivatives (5a–5l) in good yields (63 to 77%) using different sulfonic acids and 4-(prop-2-yn-1-yl)thiomorpholine 1,1-dioxide through ...

Optimization and modeling of Pb(II) adsorption from aqueous solution onto phosphogypsum by application of response surface methodology

Abstract: In this work, we have proposed a method of phosphogypsum (PG) recovery by attempting to use it as an adsorbent of heavy metal ions from aqueous solutions, while trying to study the different quanti...

Synthesis, α-amylase inhibitory activity evaluation and in silico molecular docking study of some new phosphoramidates containing heterocyclic ring

Abstract: We have synthesized a series of phosphoramidates containing a heterocyclic moiety with good yields (88–95%) by the reaction of (E)-5-benzylidene-3-((2-hydroxyethoxy)methyl)thiazolidine-2,4-dione wi...

Interaction between carboplatin with B12P12 and Al12P12 nano-clusters: A computational investigation

Abstract: This study was conducted to investigate the interaction between B12P12 and Al12P12 nano-clusters with carboplatin complex using wB97XD functional. Two interaction modes between B12P12 and Al12P12 n...

Design and synthesis of new donepezil analogs derived from arylpiperazine scaffold as acetylcholinesterase inhibitors

Abstract: Newly synthesized 4-substituted phenyl-2-(4-substituted phenylpiperazine-1-yl)thiazole derivatives (4a–v) were evaluated in terms of their acetylcholinesterase (AChE) inhibition activities. Twenty-...

A lysosome specific ratiometric fluorescent probe for detection of bisulfite ion based on hybrid coumarin-benzimidazolium compounds

Abstract: Hybrid 2-(2-(7-(diethylamino)-2-oxo-2H-chromen-3-yl)vinyl)-1,3-dimethyl-1H-benzo[d]imidazol-3-ium iodide compounds (LHZD-1 ∼ 3) were synthesized by Knoevenagel condensation reaction. Their structur...

Design and synthesis of novel 2,4,5-thiazole derivatives as 6-APA mimics and antimicrobial activity evaluation

Abstract: Nine new thiazole derivatives were synthesized considering 6-acetyl penicillanic acid (6-APA) and investigated for their antimicrobial activity. Ethyl 2-(2-mercaptoacetamido)-4-methylthiazole-5-car...

Synthesis, characterization, in vitro antimicrobial, DNA binding activity and QSAR studies of diorganotin(IV) complexes of Schiff bases derived from 2-benzoyl-1H-indene-1,3(2H)-dione and 4-substituted benzoic acid hydrazides

Abstract: A series of new diorganotin(IV) complexes of the type [R′2SnL] have been synthesized by the reaction of 2-benzoyl-1H-indene-1,3(2H)-dione Schiff bases with R′2SnCl2, (R′ = Me, Et, n-Bu, Ph) in 1:1 ...

In silico molecular docking study, synthesis and α-amylase inhibitory activity evaluation of phosphorylated derivatives of purine

Abstract: A series of phosphorylated derivatives of purine were synthesized in good yields (88–95%) by the reaction of 2‐chloro‐4‐{[(9H‐purin‐9‐yl)methoxy]methyl}‐1,3,2-λ5‐dioxaphospholan‐2‐one with various ...

Double bandpass filter and dual band gap study for NiO doped into P2O5–ZnO–Na2O glassy system

Abstract: Glass compositions 42 P2O5–40ZnO–(18-x)Na2O: xNiO in which x varies from 0 to 6 mol.% with step of 1 mol.%, are prepared by using the conventional melt annealing method. The effect of nickel ions i...

Synthesis, characterization, in vitro antioxidant and antimicrobial activities of diorganotin(IV) complexes derived from hydrazide Schiff base ligands

Abstract: We have synthesized new diorganotin(IV) complexes of the type R2SnL (where R; methyl, ethyl, butyl and phenyl) of Schiff base ligands N'-(5-chloro-2-hydroxybenzylidene)thiophene-2-carbohydrazide (H...

Synthesis, characterization, and photophysical properties of cyclotriphosphazenes containing quinoline-4-aldehyde-p-oxyanil moieties

Abstract: In the present work, a series of cyclotriphosphazenes including Schiff bases, {[N3P3(biph)2(R)2] (5), [N3P3(biph)(R)4] (6), and N3P3R6 (7) (biph = 2′,2′′-dioxy-1′,1′′- biphenyl, R = Quinoline-4-ald...

Straightforward and simple synthesis of novel pyranodipyrimidine derivatives via reaction of aromatic aldehydes and heterocyclic-1,3-dicarbonyl compound

Abstract: An efficient and simple procedure has been described for the synthesis of a novel series of polycyclic compounds containing pyranodipyrimidine core via cyclocondensation reaction of 2,3-dihydro-thi...

Synthesis and biological activities of novel S-β-D-glucopyranoside derivatives of 1,2,4-triazole

Abstract: In this study, 14 novel S-β-D-glucopyranosides of 1,2,4-triazole derivatives were synthesized and characterized by 1H NMR, 13C NMR, and HRMS. Then their antifungal activities against Gibberella zea...

Synthesis and comparative characterization of functionalized nanoporous silica obtained from tetrachloro- and tetraethoxysilane by a sol-gel method

Abstract: Functionalized silica supports were synthesized under various conditions using tetraethoxysilane (TEOS) and silicon tetrachloride (STC) as precursors by the sol-gel method. The polyethylene glycol ...

Effect of grinding media on the synergistic characteristics of coal and biomass for the carbothermal reduction of silica

Abstract: The synergistic characteristics of coal and biomass for the carbothermal reduction of silica were studied using different grinding media. The thermodynamic behavior and kinetic characteristics of t...