The reactions of N-(2-carboxyphenyl)salicylideneimine and hydrated praseodymium(III) or neodymium(III) chlorides give 1D complexes with interesting structural and spectroscopic features; the chains possess the singly deprotonated ligand which is in its zwitterionic form.
The extraction of lanthanum(III) from chloride and nitrate aqueous solutions in the systems involving new binary extractants based on N,N-dioctyldiglycolamic acid (HA) and di-n-octylamine (R2NH) or tri-n-octylamine (R3N) in toluene was studied. The compositions of the extracted species in the la...
Solvent extraction systems for the separation of zirconium(IV) and hafnium(IV) from different aqueous media, such as sulfate, chloride and nitrate were reviewed. The important parameters like extraction efficiency, extraction reaction, separation selectivity and separation factor were discussed ...
The present work reports the synthesis, characterization and ion exchange properties of polyaniline based hybrid cation exchangers such as polyaniline‑zirconium(IV) tungstate (PA/ZrW), polyaniline‑zirconium(IV) tungstomolybdate (PA/ZrWMo), polyaniline‑tin zirconium molybdate (PA/SnZrMo) and poly...
A regiospecific method for the ring-opening reaction of epoxides by the primary, secondary, tertiary alcohols, and aryl, aliphatic amines has been developed using non-toxic metal nitrate salt as a catalyst. The best results were obtained using zirconium(IV) oxynitrate among the various screened ...
The present work reports the preparation of zirconium(IV)-doped polypyrrole/zirconium (IV) iodate composite for fluoride removal. The composite material was characterized by FTIR, XRD, TGA-DTA and SEM coupled with EDX. The effects of various experimental parameters such as pH, contact time, adso...
The extreme nitrate (NO3−) species in drinking water leads to methemoglobinemia (blue baby syndrome) disease in new born toddlers whereas the excess phosphate (PO43−) and NO3− contents lead to the eutrophication (algae growth) problem of water sources. Upto date, the environmental researchers ha...
Nitrate removal from aqueous solutions was studied using poly-o-toluidine zirconium(IV) ethylenediamine (PTZE) in batch and fixed bed column experiments. The kinetic data obtained from batch experiments were analyzed by pseudo first order, pseudo second order, Elovich, intraparticle diffusion, B...
Poly-o-toluidine zirconium(IV) ethylenediamine (PTZE) was synthesized to explore its behaviour towards nitrate sorption. The material was characterized by FTIR, XRD, TGA, DTA, SEM and TEM. The adsorption of nitrate onto PTZE was investigated in a batch system at 27 °C. The adsorption equilibriu...
Fourier transform infrared spectroscopy (FTIR) was applied to the characterization of red inks used to print one-penny stamps in Britain during the period 1841–1880.Micro- and macro-accessories were compared in both transmission and reflection mode. The best spectra were obtained using a micros...
Antiplatelet drugs are promising therapeutics to intervene with platelet aggregation in arterial thrombosis, most prominently in myocardial infarction and ischemic stroke. Here, we describe the synthesis and structure–activity relationships of potent inhibitors of platelet aggregation based on ...
2-Hydroxy-3,4,5-trimethoxybenzophenones (8–16) manifest pseudo-ring formation involving intramolecular hydrogen bonding of the 2-OH and the carbonyl group. Among the synthetic products described in this report, (3-hydroxy-4-methoxyphenyl)(2-hydroxy-3,4,5-trimethoxyphenyl)-methanone (14) and (3-...
A series of 2-mercapto-6-phenylpyrimidine-4-carboxylic acid derivatives (7a‒c, 8a‒e, 9a‒e and 10a‒e) as novel xanthine oxidase inhibitors were designed based on molecular docking, and synthesized by a new method using ketoenol acids and thiourea as the starting materials. In vitro activity assay...
A series of novel phenylpyrazole carboxylic acid derivatives containing fluorine moiety, i.e., diamides 11, simple aryl-bearing amides 12 and acylthioureas 14 were successfully synthesized based on the key fluoro-containing phenylpyrazole acid intermediate. The new compounds were identified and ...
The influence of alloxan diabetes, phenylbutazone (20 mg/kg), and D-penicillamine (30 mg/kg) on 6-sulfanilamidoindazole arthritis was investigated. Arthritis was not altered by the alloxan-diabetic stage neither by injecting alloxan during developing arthritis nor by injecting it before the begi...
6-Sulfanilamidoindazole (6-SAI) is an orally administered antibacterial sulfonamide which induces periarthritis in the ankles and hind paws of older rats. It is weakly or nonarthritogenic in young rats. It enhances endotoxin lethality in aged rats and produces a “synergistic toxicity” when adm...
Summary6-Sulfanilamidoindazole (6SAI) induces selflimiting arthritis in rats. Since close relationships exist between arthritis and endotoxin, four experiments were conducted to clarify the relationship between endotoxin and 6SAI-induced arthritis. Endotoxin levels in the plasma from the abdomin...
The aerial parts of Eupatorium serotinum contain 11-hydroxy-α- and β-cubebene.
The current study explored if α-iso-cubebene, a novel cubebene sesquiterpene compound purified from Schisandra chinensis, could attenuate the activities of adhesion molecules in tumor necrosis factor-α (TNF-α)-stimulated human umbilical vein endothelial cells (HUVECs). The study was performed...
Schisandra chinensis is commonly used for food and as a traditional remedy for the treatment of neuronal disorders. However, it is unclear which component of S. chinensis is responsible for its neuropharmacological effects. To answer this question, we isolated α-iso-cubebene, a dibenzocycloocta...
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