2024-03-19T11:48:07Z
https://icc.journals.pnu.ac.ir/?_action=export&rf=summon&issue=778
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 1, pp. 1-89, Serial No. 22
Multivariate curve resolution-alternating least squares applied to kinetic spectrophotometric data for the determination of mixtures of aliphatic amines
Masoumeh
Hasani
Tayebeh
Sayarpour
Abbas
Karami
Masoud
Shariati-rad
Kinetic spectrophotometric second order data based on the reaction of 1,2-naphthoquinone-4-sulphonate (NQS) coupled with multivariate curve resolution-alternating least squares (MCR-ALS) has been proposed for simultaneous determination of ethylamine, propylamine and butylamine. Using second-order advantage, MCR-ALS methodology can solve problems of quantitation of analyte in the presence of unknown and uncalibrated interferences. Ethylamine, propylamine and butylamine react differentially with NQS at pH 9.5. Therefore, determination of these amines has been carried out due to the difference between their reaction rates. Quantitative determination of each amine in the mixture is performed using a synthetic solution as standard containing only the amine of interest. The MCR-ALS results are evaluated by the residuals and parameters such as lack of fit. The quantitative determination of these amines in different synthetic mixtures and some real samples such as river water, well water, tap water and soil has been performed and the results have been found to have good recoveries.
MCR-ALS
aliphatic amines
Kinetics
UV/Vis spectroscopy
2019
01
01
1
14
https://icc.journals.pnu.ac.ir/article_5317_4996f83fc7cfe2a4d23782093d6ab913.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 1, pp. 1-89, Serial No. 22
One-pot synthesis of highly regioselective β-azido alcohols catalyzed by Brønsted acidic ionic liquids
Sarvin
Mohammadi-Aghdam
Hadi
Jabbari
Omidali
Pouralimardan
Fater
Divsar
Issa
Amini
Sami
Sajjadifar
In this protocol, 3-(2-carboxybenzoyl)-1-methyl-1H-imidazol-3-ium chloride [Cbmim]Cl and sulfonic acid functionalized pyridinium chloride [pyridine-SO3H]Cl as a new, reusable, and green Brønsted acidic ionic liquid (BAIL) catalyst were synthesized and successfully used for the one-pot ring opening of epoxide with sodium azide (NaN3) in water at room temperature. Epoxides under ring-opening easily with NaN3 in the presence of [Cbmim]Cl and [pyridine-SO3H]Cl to afford the corresponding β-azido alcohols as attractive and interesting materials in drug design and pharmaceutics compounds in high yield with good regioselective under mild reaction conditions. In this protocol, 3-(2-carboxybenzoyl)-1-methyl-1H-imidazol-3-ium chloride [Cbmim]Cl and sulfonic acid functionalized pyridinium chloride [pyridine-SO3H]Cl as a new, reusable, and green Brønsted acidic ionic liquid (BAIL) catalyst were synthesized and successfully used for the one-pot ring opening of epoxide with sodium azide (NaN3) in water at room temperature. Epoxides under ring-opening easily with NaN3 in the presence of [Cbmim]Cl and [pyridine-SO3H]Cl to afford the corresponding β-azido alcohols as attractive and interesting materials in drug design and pharmaceutics compounds in high yield with good regioselective under mild reaction conditions.
[Cbmim]Cl
[pyridine-SO3H]Cl
epoxide
ring opening
azidoalcohols
Water
2019
01
01
15
28
https://icc.journals.pnu.ac.ir/article_7646_49929f7462e386f328220c7b4a6c486c.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 1, pp. 1-89, Serial No. 22
Preparation, characterization and Photo-inactivation of cellulose nanocrystals impregnated with meso-tetrakis(4-nitrophenyl)porphyrin
Fatemeh
Fayyaz
Mahboubeh
Rabbani
Rahmatollah
Rahimi
Mehdi
Rassa
In this study, cellulose nanocrystals (CNC) was prepared and meso-tetrakis(4-nitrophenyl)porphyrin (TNPP) was immobilized on it. The product was identified by techniques of UV-Vis, fourier transform infrared (FT-IR), diffuse reflectance UV-Vis spectroscopy (DRS), energy-dispersive X-ray spectroscopy (EDX) and scanning electron microscopy (SEM). The effect of an amount of a loaded porphyrin compound containing the nitro group on CNC was investigated against a typical Gram negative bacterium, Pseudomonas aeruginosa, and a typical Gram positive bacterium, Bacillus subtilis, under visible light irradiation. The results indicated that CNC incorporated with 14.9% TNPP has a good effect on the photo-inactivation of P. aeruginosa and can be used in the textile, biomedicine, biomaterials engineering, membranes and polymer nanocomposites.
Bacillus subtilis
binding test
Cellulose nanocrystals
Photodynamic antimicrobial chemotherapy
pseudomonas aeruginosa
TNPP
2019
01
01
29
38
https://icc.journals.pnu.ac.ir/article_4217_3483efc06900efcddb06c47cd2f21637.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 1, pp. 1-89, Serial No. 22
Prediction of IC50 of 2,5-diaminobenzophenone organic derivatives using informatics-aided genetic algorithm
Rashid
Heidarimoghadam
Seyede Shima
Mortazavi
Abbas
Farmany
In the present paper, informatics-aided quantitative structure activity relationship (QSAR) models using genetic algorithm-partial least square (GA-PLS), genetic algorithm-Kernel partial least square (KPLS), and Levenberg-Marquardt artificial neural network (LM ANN) approach were constructed to access the antimalarial activity (pIC50) of 2,5-diaminobenzophenone derivatives. Comparison of errors and correlation coefficients obtained by the models it was shown that the LM ANN approach works with a high correlation coefficient and low prediction error. This model was applied to the prediction of pIC50 values of 2,5-diaminobenzophenone derivatives. Applying the extended model to a dataset of 20 compounds demonstrate the reliability and accuracy of the model. Comparing three models revealed the superiority of the L-M ANN to predict the pIC50 of 2,5-diaminobenzophenones derivatives.
P. falciparum malaria
antimalarial compounds
2,5-diaminobenzophenones
QSAR
2019
01
01
39
51
https://icc.journals.pnu.ac.ir/article_4932_4aa9b8e65178146b3fd3b2ad1df7d236.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 1, pp. 1-89, Serial No. 22
New pyrazolone derivatives synthesis: comparison of the catalytic effect of three typically different Brønsted acid catalysts on the reaction progression
Gholamabbas
Chehardoli
Navid
Mansouri
Via the one-pot condensation reaction of ethyl acetoacetate, aromatic aldehydes, 2,4-dinitrophenylhydrazine, and β-naphthol; new pyrazolone derivatives were synthesized in the presence of three Brønsted acid catalysts. These Brønsted acid catalysts are Silica sulfuric acid (SSA), tetra-n-butyl ammonium hydrogen sulfate (TBAHSO4) and [2,2′-Bipyridine]-1,1′-diium tricyanomethanide {[2,2′-BPyH][C(CN)3]2}. Each of these combinations has its own characteristics. SSA is a heterogeneous catalyst. TBAHSO4 is a phase transfer catalyst and {[2,2′-BPyH][C(CN)3]2} is an ionic liquid. We compared the obtained results of these catalysts. In most cases, the results were comparable. But, sometimes TBAHSO4 and {[2,2′-BPyH][C(CN)3]2} give the better results to the SSA in term of reaction time and yields. Even though, isolation of SSA from products was easier than the separation of two other catalysts.
Pyrazolone
silica sulfuric acid
tetra-n-butyl ammonium hydrogen sulfate
[2
2′-bipyridine]-1
1′-diium tri-cyanomethanide
2019
01
01
52
62
https://icc.journals.pnu.ac.ir/article_4937_77b53189830f19dff47fea9e85aaa117.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 1, pp. 1-89, Serial No. 22
Study of structure and thermal properties of styrene-butylacrylate copolymer with OMMT nanocomposite emulsions
Mohsen
Oftadeh
Fahad
Hajati
Mortaza
Jamshidi
Hamid
Javaherian Naghash
(St-co-BA) polymer through montmorillonite (MMT) nanocomposite emulsion is prepared by in situ intercalative emulsion polymerization of styrene (St), butyl acrylate (BA) in the presence of organic modified montmorillonite (OMMT) with different OMMT contents (0, 0.5, 1.0, 1.5, and 2.0 wt%). The synthetic compounds are characterized by FTIR, XRD. The nanocomposite emulsions are characterized by applying FTIR, SEM, TEM, TGA and DSC techniques in order to investigate the structure and the thermal properties of the coplymer. The properties of the nanocomposite emulsions containing OMMT are better than styrene-acrylate emulsion. The study of monomer conversion versus time and different OMMT contents indicates that the polymerization rate is decreased by increasing the concentration of styrene and OMMT. Consequently the properties of the nanocomposite emulsion containing 1 wt % OMMT are better than other contents.
styrene
butyl acrylate, emulsion polymerization
nanocomposites
montmorillonite
2019
01
01
63
70
https://icc.journals.pnu.ac.ir/article_4234_73f9858c522e4ed8ec70859d4e6beaad.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 1, pp. 1-89, Serial No. 22
Synthesis, characterization and spectroscopic properties of new azo dyes derived from aniline derivatives based on acetylacetone and azo-metal (II) complexes and singular value decomposition (SVD) investigation
Nader
Noroozi Pesyan
Vali
Gholsanamloo
Maryam
Moradi Par
Hamid
Rashidnejad
Ali
Gharib
Kamelia
Nejati
Four new azo-dyes, 3-phenyl azopentane-2,4-dion (LA), 3-(4-nitro phenyl azo)-pentane-2,4-dion (LP), 3-(2-nitro phenyl azo)-pentane-2,4-dion (LO) and 4-(1-acetyle-2-oxo-propyl azo)-benzene sulfonate sodium (LS), were synthesized from, aniline, 4-nitroaniline, 2-nitroaniline and sulfanilic acid with acetylacetone, respectively. Reaction of these new dyes with acetate salts of copper(II), nickel(II) and cobalt(II) in molar ratios of 1:2 were carried out to produce azo metal (II) complexes with the general stoichiometry; CuL2, CoL2 and NiL3 in complexes. Structure of azo dyes was characterized using FT-IR,1H NMR,13C NMR, UV-Visible and also the corresponding metal (II) complex were characterized by FT IR, UV-Visible and CHN and XRD analysis techniques. Elemental analysis and spectral data indicated that the dye as a ligand with two teeth, N and O, acts as a bidentate ligand. Differences in absorption maxima of azo ligands compared to those corresponding complexes were also studied. Also, in this work, singular value decomposition (SVD) as a chemometric method was used to determine the Cu(II), Co(II) and Ni(II) complexes with the mentioned ligands in methanol by UV-Vis spectrophotometry. SVD method confirmed the formation of CuL2, CoL2 and NiL3 complexes.
azo dye
sulfanilic acid
acetylacetone
bifurcated intramolecular H-bond
azo-metal (II) complex
2019
01
01
71
89
https://icc.journals.pnu.ac.ir/article_3951_f1ed75301ccbf498182b35a4e82a870f.pdf