@article { author = {Rahimi, Maryam and Jamehbozorgi, Saeed and Chermette, Henry and Ghiasi, Reza and Poor Kalhor, Mahboubeh}, title = {Computational study of substituent effect on the electronic properties of ferrocylidene acetophenones complexes}, journal = {Eurasian Chemical Communications}, volume = {1}, number = {5}, pages = {411-418}, year = {2019}, publisher = {Sami Publishing Company (SPC)}, issn = {2717-0535}, eissn = {2676-6280}, doi = {10.33945/SAMI/ECC.2019.5.1}, abstract = {In this study, the substituent effect on the electronic, spectroscopic properties and thermodynamic parameters of neutral and oxidized states of ferrocylidene acetophenone complexes was investigated by adopting the hybrid meta exchange-correlation functional of M06-2X. The frontier orbitals and the highest occupied molecular orbitals–lowest unoccupied molecular orbitals gaps of the substituted compounds were determined. Ionization potential (IP), electron affinity, and reorganization energy values of these molecules were estimated. The thermodynamic parameters (free energy and enthalpy) of the oxidation reaction of the studied complexes were calculated. Also, a variation on the wavenumber of carbonyl group in both states was revealed. Correlations between the evaluated properties and Hammett's constant were explored.}, keywords = {Ferrocene,Substituent effect,Ionization potential,electron affinity,thermodynamic parameters}, url = {https://www.echemcom.com/article_92309.html}, eprint = {https://www.echemcom.com/article_92309_5140b142b6780c66838c9ad5cf760c46.pdf} } @article { author = {Khaledi, Mostafa and Ziyaee Qychan Atiq, Hoda and Chamkouri, Narges and Mojaddami, Ayyub}, title = {Molecular docking and druggability studies of terpenoid-derived metabolites from marine sponges as IL-17A inhibitors}, journal = {Eurasian Chemical Communications}, volume = {1}, number = {5}, pages = {419-432}, year = {2019}, publisher = {Sami Publishing Company (SPC)}, issn = {2717-0535}, eissn = {2676-6280}, doi = {10.33945/SAMI/ECC.2019.5.2}, abstract = {In this study, physicochemical properties of 49 compounds extracted from anti-inflammatory sponge species with the aim of ADMET test and Lipinski rule of five have been determined. Fourteen compounds, which showed best results, were subjected to molecular docking studies with IL-17. Among these compounds, Four compounds with low binding energy were obtained. These compounds, namely, frondosins C, frondosins D, methylpourewate B and Cadlinolide C have shown promising ADMET properties and strong interactions in the active site of IL-17. The ROC curve with the acceptable area under the curve of 0.853 was used for validation of the docking protocol. If the efficacy of these compounds is proven by biochemical tests, these molecules will be potentially important inhibitors of IL-17A and used as basis for the further development of anti-inflammatory and anti-psoriasis agents.}, keywords = {Molecular docking,druggability,interleukin 17-A,Psoriasis,marine sponge}, url = {https://www.echemcom.com/article_92310.html}, eprint = {https://www.echemcom.com/article_92310_433a4b64ffaca0c8df7877f8f3bedec0.pdf} } @article { author = {Mehdipour, Ebrahim and Baharlouei, Ehsan and Zarnegar, Zohre}, title = {Selective trimethylsilylation of alcohols and phenols with hexamethyldisilazane catalyzed by LaCoO3 perovskite}, journal = {Eurasian Chemical Communications}, volume = {1}, number = {5}, pages = {433-440}, year = {2019}, publisher = {Sami Publishing Company (SPC)}, issn = {2717-0535}, eissn = {2676-6280}, doi = {10.33945/SAMI/ECC.2019.5.3}, abstract = {Trimethylsilylation of alcohols and phenols were carried out under solvent-free conditions with hexamethyldisilazane (HMDS) using LaCoO3 perovskite. LaCoO3 as an efficient catalyst accelerated this reaction under milder condition. The advantages of this method are evident regarding, easy separation, low cost and low catalyst loading, lack of pollution, easy work-up, and selective protection of primary and secondary alcohols.}, keywords = {Protection,Trimethylsilylation,trimethylsilyl ether,hexamethyldisilazane,Heterogeneous catalyst}, url = {https://www.echemcom.com/article_92315.html}, eprint = {https://www.echemcom.com/article_92315_f4e7891a441c39b23143824e4c50afeb.pdf} } @article { author = {Khodaie, Maryam and Ghasemi, Nahid and Ramezani, Majid}, title = {Green synthesis of silver nanoparticles using (Eryngium Campestre) leaf extract}, journal = {Eurasian Chemical Communications}, volume = {1}, number = {5}, pages = {441-450}, year = {2019}, publisher = {Sami Publishing Company (SPC)}, issn = {2717-0535}, eissn = {2676-6280}, doi = {10.33945/SAMI/ECC.2019.5.4}, abstract = {Biological synthesis of metallic nanoparticles is considered as a fast, eco-friendly, affordable and easily scalable technology. Also, the nanoparticles produced by plants are very stable. In this study, the focus is on the synthesis of silver nanoparticles using extract of eryngium campestre. The effective parameters such as concentration of silver nitrate, pH, temperature and time, size and morphology of the nanoparticles were investigated and controlled by (UV-Vis) spectroscopy in the range of 300-500 nm. Silver nanoparticles were synthesized under optimal conditions of 1 mM silver nitrate, pH=5, temperature= 50 °C and synthesis time of 100 minutes. Then, characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), Scanning electron microscope (SEM), Energy dispersive X-ray (EDX) analysis.}, keywords = {Silver nanoparticles,Metallic nanoparticles,Eryngium campestre,Green synthesis}, url = {https://www.echemcom.com/article_92317.html}, eprint = {https://www.echemcom.com/article_92317_9427a4a98e4c512501decb2b20798043.pdf} } @article { author = {Adibi Sedeh, Somayeh and Mohammadi, Mohammad Kazem and Fereidoonnezhad, Masood and Javid, Ali}, title = {Synthesis and anticancer evaluation of novel acenaphtho [1,2-e]-1,2,4- triazine derivatives}, journal = {Eurasian Chemical Communications}, volume = {1}, number = {5}, pages = {451-458}, year = {2019}, publisher = {Sami Publishing Company (SPC)}, issn = {2717-0535}, eissn = {2676-6280}, doi = {10.33945/SAMI/ECC.2019.5.5}, abstract = {In this paper we present the convenient syntheses of seven new phenyl hydrazin derivatives 8 (a-h). For this purpose, acenaphtho [1,2-e]-1,2,4-triazine-9(8H)-thione (3) was prepared, starting from acenaphthylene-1, 2-dione (1) and thiosemicabazide in good yield. The reaction of (3) with benzyl chloride resulted to synthesis of 9-(benzylthio)-acenaphtho[1,2-e]-1,2,4-triazines (5) that reacted with hydrazine to synthesis of 9-(hydrazino)-acenaphtho [1, 2-e]-1, 2, 4-triazines (6). This compound reacted with different aromatic aldehyde derivatives (7 a-h) that resulted to synthesis of final product, 9-(phenyl imino hydrazine)-acenaphtho [1, 2-e]-1, 2, 4-triazine derivatives (8 a-h) in good yield. The cytotoxicity of the synthesized compounds were also studied against human cancer cell lines including breast (MCF-7), ovarian (SKOV3) and lung (A549) cell lines.    }, keywords = {Synthesis,triazines,benzyl thio,imino hydrazine,Aldehydes,Anticancer}, url = {https://www.echemcom.com/article_92319.html}, eprint = {https://www.echemcom.com/article_92319_cde72c245f45e6e47718e94e696cdaf7.pdf} } @article { author = {Shafiekhani, Homa and Mostaghni, Fatemeh and Rad, Naimeh}, title = {Simultaneous determination of dopamine and uric acid using a glassy carbon paste electrode modified with copper- para red complex}, journal = {Eurasian Chemical Communications}, volume = {1}, number = {5}, pages = {459-469}, year = {2019}, publisher = {Sami Publishing Company (SPC)}, issn = {2717-0535}, eissn = {2676-6280}, doi = {10.33945/SAMI/ECC.2019.5.6}, abstract = {A simple approach based on cyclic voltammetry (CV) was developed for the simultaneous determination of dopamine (DA) and uric acid (UA) in the presence of ascorbic acid (AA) using a modified glassy carbon paste electrode (GCPE). In the present study, analytical parameters were optimized and electrochemical performance of modified electrode was investigated. The calibration curves were obtained over the range of 15.97-157.98 μmol L-1 dopamine and 15.97-195.35 μmol L-1 uric acid. Detection limits of 12.38 μmol L-1 dopamine and 3 μmol L-1 uric acid were also obtained at pH 7.0. The modified electrode was used for practical application for the detection of dopamine and uric acid in the real samples of uric acid and dopamine injection, human serum and urine samples.  }, keywords = {Glassy carbon paste electrode,Dopamine,Uric Acid,Electrochemical sensor}, url = {https://www.echemcom.com/article_92322.html}, eprint = {https://www.echemcom.com/article_92322_f77d71112991ef869e4a268760456961.pdf} } @article { author = {Shariati, Shahab and Shahpanah, Elnaz and Bolouri, Azam and Hashemifard, Negar and Shariati, Fatemeh}, title = {Electrospun polystyrene nanofiber adsorbent for solid phase extraction of phenol as its quinoid derivative from aqueous solutions}, journal = {Eurasian Chemical Communications}, volume = {1}, number = {5}, pages = {470-479}, year = {2019}, publisher = {Sami Publishing Company (SPC)}, issn = {2717-0535}, eissn = {2676-6280}, doi = {10.33945/SAMI/ECC.2019.5.7}, abstract = {In the present study, polystyrene nanofibers (PS NFs) were synthesized by electrospinning method and used as adsorbents in solid phase extraction of phenol from aqueous solutions. Phenol was reacted with 4-aminoantipyrine (4-AAP) reagent in presence of potassium hexacyanoferrate (III). The coloured product was extracted by solid phase extraction using electrospun synthesized polystyrene nanofibers and determined by UV-Vis spectrophotometer. At certain conditions of electrospinning process, the variables affecting the solid phase extraction efficiency were studied and optimized. Under the optimized conditions, (sorbent mass: 0.025 g PS NF, sample flow rate: 2.5 mL min−1, eluent: acetone: NaOH 0.1 M (1:1 v/v)), the linear dynamic range (LDR) and limit of detection (LOD as 3 Sb/m) for extraction of phenol from 50 mL of aqueous solutions were determined as 15-2500 µg L-1 and 10 µg L-1, respectively. The precision (as RSD %) of the extraction method using the proposed adsorbent was lower than 7.6%. Finally, the applicability of the proposed method for the extraction of phenol from industrial aqueous samples was examined and satisfactory results were obtained.}, keywords = {Electrospinning,Polystyrene,Nanofibers,Solid phase extraction,Phenol}, url = {https://www.echemcom.com/article_95607.html}, eprint = {https://www.echemcom.com/article_95607_aa3ff45f004040052ae4ada40c87910c.pdf} } @article { author = {Fereydoun Asl, Ehsan and Mohseni-Shahri, Fatemeh Sadat and Moeinpour, Farid}, title = {NiFe2O4 coated sand as a nano-adsorbent for removal of Pb (II) from aqueous solutions}, journal = {Eurasian Chemical Communications}, volume = {1}, number = {5}, pages = {480-493}, year = {2019}, publisher = {Sami Publishing Company (SPC)}, issn = {2717-0535}, eissn = {2676-6280}, doi = {10.33945/SAMI/ECC.2019.5.8}, abstract = {In this study, NiFe2O4 magnetic nanoparticles as an adsorbent for lead (Pb) removal were coated on sand particles. Adsorption studies were conducted to investigate the efficacy of contact time, pH, adsorbent dosage and initial lead ion concentration on the removal efficiency. To choose the most fitting kinetic model, the pseudo-first order and pseudo-second order models were compared and the most suitable kinetic model was selected by the pseudo-second order. Langmuir and Freundlich isotherms were evaluated and the most suitable isotherm was observed as the Freundlich model. In addition, the NiFe2O4 coated sand can simply be removed by an ordinary filtration process.}, keywords = {Pb(II) Removal,Sand,Magnetic nanoparticles,Adsorption,NiFe2O4}, url = {https://www.echemcom.com/article_95609.html}, eprint = {https://www.echemcom.com/article_95609_bc79317e79c5144735fc17066e6ce469.pdf} }