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Synthesis, single crystal X-ray structure determination, Hirshfeld surface evaluation, void analysis, interaction energies, energy frameworks and density functional theory studies of 1-(4-methylbenzoyl)thiourea 1-(4-甲基苯甲酰基)硫脲的合成、单晶 X 射线结构测定、Hirshfeld 表面评价、空隙分析、相互作用能、能量框架和密度泛函理论研究
IF 2.218
Chemical Data Collections Pub Date : 2024-01-24 DOI: 10.1016/j.cdc.2024.101121
Hamid Aziz , Aamer Saeed , Jim Simpson , Tuncer Hökelek , Erum Jabeen
{"title":"Synthesis, single crystal X-ray structure determination, Hirshfeld surface evaluation, void analysis, interaction energies, energy frameworks and density functional theory studies of 1-(4-methylbenzoyl)thiourea","authors":"Hamid Aziz ,&nbsp;Aamer Saeed ,&nbsp;Jim Simpson ,&nbsp;Tuncer Hökelek ,&nbsp;Erum Jabeen","doi":"10.1016/j.cdc.2024.101121","DOIUrl":"10.1016/j.cdc.2024.101121","url":null,"abstract":"<div><p>The current research work successfully presents facile synthesis, single crystal X-ray structure determination, Hirshfeld surface (HS) analysis, and Density functional theory (DFT) studies of 1-(4-methylbenzoyl)thiourea. Accordingly, the synthesized compound crystallized in triclinic <em>P -1</em> space group with <em>a</em> = 7.3464 (5) Å, <em>b</em> = 8.2696 (5) Å, <em>c</em> = 8.5337 (5) Å, α = 88.349 (5)°, β = 72.206 (5)°, γ = 69.901 (6)°, <em>Z</em> = 2 and <em>V</em> = 461.89 (5) Å<sup>3</sup>. In the crystal structure, the molecules are linked through intermolecular N—H···O, C—H···O, C—H···S and N—H···S bifurcated hydrogen bonds, enclosing R<sub>2</sub><sup>2</sup>(8), R<sub>2</sub><sup>2</sup>(14) and R<sub>4</sub><sup>4</sup>(11) ring motifs, into 2D network. HS analysis explored weak intermolecular interactions and indicated significant contributions responsible for crystal packing are H…H (41.0%), H…S/S…H (21.6%), H…C/C…H (12.7%) and H…O/O…H (9.9%) interactions, where hydrogen bonding and van der Waals contacts were dominant. Crystal voids analysis confirmed the absence of any large cavity within the packed crystal, suggesting higher mechanical stability of the crystal. Furthermore, analysıs of the electrostatic, dispersion and total energy frameworks augmented stabilization through electrostatic energy contribution. Moreover, optimized molecular structure, using DFT at B3LYP/6–311G(d,p) level was compared with the experimentally determined one. HOMO–LUMO energy gaps were determined and the molecular electrostatic potential (MESP) surfaces are calculated at B3LYP/6–31 G level to predict possible sites for electrophilic and nucleophilic attacks. DFT computations, through stable terminal HOMO and whole molecule LUMO spread, and significant polarity predicted amphoteric behavior of the synthesized 1-(4-methylbenzoyl)thiourea for its reaction with an electrophile or nucleophile.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"50 ","pages":"Article 101121"},"PeriodicalIF":2.218,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139560967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, in vitro acetylcholinesterase, butyrylcholinesterase activities and molecular docking study of 1,3-oxathiol-2-imine derivatives 1,3-oxathiol-2-imine 衍生物的合成、体外乙酰胆碱酯酶和丁酰胆碱酯酶活性及分子对接研究
IF 2.218
Chemical Data Collections Pub Date : 2024-01-18 DOI: 10.1016/j.cdc.2024.101120
Hayat Ullah , Muhammad Nabi , Maliha Sarfraz , Fahad Khan , Muhammad Saleem Khan , Rabia Khan , Mehboob Khan , Muhammed Perviaz , Fazal Rahim
{"title":"Synthesis, in vitro acetylcholinesterase, butyrylcholinesterase activities and molecular docking study of 1,3-oxathiol-2-imine derivatives","authors":"Hayat Ullah ,&nbsp;Muhammad Nabi ,&nbsp;Maliha Sarfraz ,&nbsp;Fahad Khan ,&nbsp;Muhammad Saleem Khan ,&nbsp;Rabia Khan ,&nbsp;Mehboob Khan ,&nbsp;Muhammed Perviaz ,&nbsp;Fazal Rahim","doi":"10.1016/j.cdc.2024.101120","DOIUrl":"10.1016/j.cdc.2024.101120","url":null,"abstract":"<div><p>We have synthesized eleven derivatives of 1,3-oxathio-2-imine, characterized through NMR, HREI-MS and evaluated against acetylcholinesterase and butyrylcholinesterase enzymes. All synthesized derivative showed good inhibitory potential, having IC<sub>50</sub> value ranged from 1.10 ± 0.05 to 23.20 ± 0.40 <em>µ</em>M (AChE) and 2.30 ± 0.10 to 32.00 ± 0.80 µM (BuChE) as compare to standard drug Donepzil (IC<sub>50</sub> = 2.16 ± 0.12 &amp; 4.5 ± 0.11 µM, respectively). In both case, derivative <strong>7</strong> (IC<sub>50</sub> = 1.10 ± 0.05 <em>µ</em>M &amp; 2.30 ± 0.10 µM, respectively) was found the most potent among the series. Structure activity relationship was carried out which mainly depend upon the nature, position, number and electron donating/withdrawing effect of the substituent/s on phenyl ring. Molecular docking was carried out to determine the binding attraction of the most potent derivatives with the active site of enzymes.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"50 ","pages":"Article 101120"},"PeriodicalIF":2.218,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurement and correlation of the isobaric vapor-liquid equilibria data of 2-Ethyl Hexanol + 2-Ethyl Hexyl Acrylate and Acrylic Acid + 2-Ethyl Hexyl Acrylate systems 2-Ethyl Hexanol + 2-Ethyl Hexyl Acrylate 和 Acrylic Acid + 2-Ethyl Hexyl Acrylate 体系等压气液平衡数据的测量与相关性
IF 2.218
Chemical Data Collections Pub Date : 2024-01-10 DOI: 10.1016/j.cdc.2024.101119
Abdul Wahab , Muhammad Asif Nawaz , Waqas Ahmed , Yanhong Xu , Jigang Zhao
{"title":"Measurement and correlation of the isobaric vapor-liquid equilibria data of 2-Ethyl Hexanol + 2-Ethyl Hexyl Acrylate and Acrylic Acid + 2-Ethyl Hexyl Acrylate systems","authors":"Abdul Wahab ,&nbsp;Muhammad Asif Nawaz ,&nbsp;Waqas Ahmed ,&nbsp;Yanhong Xu ,&nbsp;Jigang Zhao","doi":"10.1016/j.cdc.2024.101119","DOIUrl":"10.1016/j.cdc.2024.101119","url":null,"abstract":"<div><p>In this work, vapor-liquid equilibrium data were measured for the binary systems of 2-ethyl hexanol + 2-ethyl hexyl acrylate and acrylic acid + 2-ethyl hexyl acrylate at a constant pressure of 101.325 kPa. The VLE experimental analysis was conducted through a modified rose still. In order to verify the thermodynamic consistency of the VLE data, the Redlich-Kister area and Van Ness tests were performed. Regression was carried out on Aspen plus to correlate the vapor-liquid equilibrium data of the above systems with WILSON, NRTL and UNIQUAC activity coefficient models to obtain binary interaction parameters. The results of root mean square deviations (RMSD) and average absolute deviations (AAD) depicted that each model appropriately fitted the experimental VLE data since minimum deviations from experimental results were observed. Furthermore, the results of VLE experiments illustrated that the VLE data for each system was non-azeotropic.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"50 ","pages":"Article 101119"},"PeriodicalIF":2.218,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139408534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
“Effect of datura metel leaf extract on Cd@ZnO NCs for pollutant reduction and antimicrobial activity” "Datura metel 叶提取物对 Cd@ZnO NCs 减少污染物和抗菌活性的影响
IF 2.218
Chemical Data Collections Pub Date : 2024-01-10 DOI: 10.1016/j.cdc.2024.101117
Prathap A , H.S.Bhojya Naik , R. Viswanath
{"title":"“Effect of datura metel leaf extract on Cd@ZnO NCs for pollutant reduction and antimicrobial activity”","authors":"Prathap A ,&nbsp;H.S.Bhojya Naik ,&nbsp;R. Viswanath","doi":"10.1016/j.cdc.2024.101117","DOIUrl":"10.1016/j.cdc.2024.101117","url":null,"abstract":"<div><p>This work reports a facile approach for synthesizing Cadmium @ Zinc oxide (<em>x</em> = 0, 5, 15 ml) nanocomposites (NCs) using leaf extracts of <em>datura</em> by co-precipitation method without varying the concentration of dopant followed by the comparison of their physical and optical properties. It is characterized by UV–vis, FTIR, PXRD, FESEM, EDAX, HRTEM, Raman spectroscopy, and PL analysis. PXD confirmed pure and crystallized with FCC with 32.35, 27.82, and 27.51 nm grain sizes. FTIR confirms that plant precursors acted as reducing and capping agents by stretching vibration at 546, 507, 487, and 433cm<sup>−1</sup>. SEM and HRTEM data revealed the existence of spherical nanocomposites with nearly identical particle sizes. EDAX showed the existence of a nanocomposite of Cadmium @ Zinc oxide (<em>x</em> = 0, 5, 15 ml) nanocomposite. Raman spectra indicated that the Cd@ZnO NCs were crystallized in a hexagonal (wurtzite structure). A blue emission peak was observed in photoluminescence spectra. In the UV–Vis spectroscopy, band gaps of the synthesized nanocomposite are determined. By increasing extraction concentrations, the degradation efficiency of rhodamine-B dye increases up to 87.87 %. g-CZO nanocomposite effectively controlled both bacterial species <em>Staphylococcus aureus</em> and <em>Klebsiella pneumonia</em> in antimicrobial activity.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"50 ","pages":"Article 101117"},"PeriodicalIF":2.218,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139408526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seasonal variation in essential oil composition of Artemisia herba-alba and their effects on antioxidant, antibacterial, and antifungal activities 艾蒿精油成分的季节性变化及其对抗氧化、抗菌和抗真菌活性的影响
IF 2.218
Chemical Data Collections Pub Date : 2024-01-09 DOI: 10.1016/j.cdc.2024.101118
Hayat Elwardani , Asmaa Oubihi , Sara Haida , Rabab Ez-Zriouli , Karima El Kabous , Mohammed Ouhssine
{"title":"Seasonal variation in essential oil composition of Artemisia herba-alba and their effects on antioxidant, antibacterial, and antifungal activities","authors":"Hayat Elwardani ,&nbsp;Asmaa Oubihi ,&nbsp;Sara Haida ,&nbsp;Rabab Ez-Zriouli ,&nbsp;Karima El Kabous ,&nbsp;Mohammed Ouhssine","doi":"10.1016/j.cdc.2024.101118","DOIUrl":"10.1016/j.cdc.2024.101118","url":null,"abstract":"<div><p>This study aimed to compare the essential oil yield and chemical composition of <em>Artemisia herba-alba</em> in the Anti-Atlas region, considering different harvest dates. The antibacterial and antifungal properties were also evaluated. Essential oils yields were 1.87 %, 1.85 %, and 2.35 % for the April, June and October harvests, respectively. Chromatographic analysis identified 21 compounds, with camphor, 1,8-cineole, and camphene as the main constituents. <em>Artemisia herba-alba</em> essential oils exhibited significant antibacterial and antifungal activities. The October-harvested oil showed notable antibacterial effects against <em>Staphylococcus epidermidis</em> (20 mm), while the June-collected essential oil demonstrated strong activity with a 20.66 mm inhibition zone against <em>Acinobacter baumannii</em>. Furthermore, the June-collected oil displayed significant antifungal activity with a 70.58 % inhibition index against <em>Fusarium culmorum</em>. Despite varying reducing powers with IC50 values, the antioxidant activity of the essential oils was relatively weaker compared to <span>l</span>-ascorbic acid, possibly due to the prevalence of non-phenolic compounds.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"50 ","pages":"Article 101118"},"PeriodicalIF":2.218,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139415267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies on molecular interactions through thermophysical properties and FTIR analysis of binary systems of a green solvent furfuryl alcohol with 2-alkoxyethanols 通过对绿色溶剂糠醇与 2-烷氧基乙醇二元体系的热物理性质和傅立叶变换红外光谱分析研究分子相互作用
IF 2.218
Chemical Data Collections Pub Date : 2024-01-07 DOI: 10.1016/j.cdc.2024.101115
K.A. Sasikala , G.Srinivasa Rao , P.V.S. Sairam , M. Silpa , K.Rayapa Reddy
{"title":"Studies on molecular interactions through thermophysical properties and FTIR analysis of binary systems of a green solvent furfuryl alcohol with 2-alkoxyethanols","authors":"K.A. Sasikala ,&nbsp;G.Srinivasa Rao ,&nbsp;P.V.S. Sairam ,&nbsp;M. Silpa ,&nbsp;K.Rayapa Reddy","doi":"10.1016/j.cdc.2024.101115","DOIUrl":"10.1016/j.cdc.2024.101115","url":null,"abstract":"<div><p>The present paper provides the physiochemical properties of binary systems of a bio-derived, eco-sustainable solvent furfuryl alcohol with 2-alkoxyethanols. Speed of ultrasound (<em>U</em>), density (<em>ρ</em>) of pure liquids and binaries of furfuryl alcohol with 2-methoxyethanol, 2-ethoxyethanol and 2-butoxyethanol have been measured at four temperatures from 303.15 K to 318.15 K (with interval as 5 K). From the measured experimental data, excess free length (<span><math><msubsup><mi>L</mi><mi>f</mi><mi>E</mi></msubsup></math></span>), excess volume per mole (<span><math><msubsup><mi>V</mi><mi>m</mi><mi>E</mi></msubsup></math></span>) and isentropic compressibility deviation (<em>∆κ<sub>s</sub></em>) have been calculated. For fitting the data of excess parameters, Redlich-Kister polynomial equation has been used and the corresponding standard deviation is computed. The variations in the parameters under investigation indicated molecular associations among the components of the mixture. Partial molar studies have approved these results. Further, FTIR spectral analysis has been undertaken to confirm the interactions of furfuryl alcohol and 2-alkoxyethanols. The FTIR analysis is well agreed with the thermodynamic findings.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"50 ","pages":"Article 101115"},"PeriodicalIF":2.218,"publicationDate":"2024-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139396779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring citrus waste's potential as an antioxidant, antibacterial, and anti-corrosion agent 探索柑橘废料作为抗氧化剂、抗菌剂和防腐剂的潜力
IF 2.218
Chemical Data Collections Pub Date : 2024-01-07 DOI: 10.1016/j.cdc.2024.101114
A. Najem , M. Boudalia , M. Sabiha , A. Laqhaili , A. Chibani , N. Chahboun , A. Bellaouchou , A. Zarrouk
{"title":"Exploring citrus waste's potential as an antioxidant, antibacterial, and anti-corrosion agent","authors":"A. Najem ,&nbsp;M. Boudalia ,&nbsp;M. Sabiha ,&nbsp;A. Laqhaili ,&nbsp;A. Chibani ,&nbsp;N. Chahboun ,&nbsp;A. Bellaouchou ,&nbsp;A. Zarrouk","doi":"10.1016/j.cdc.2024.101114","DOIUrl":"10.1016/j.cdc.2024.101114","url":null,"abstract":"<div><p>Citrus <em>reticulata Blanco</em> essential oil was extracted using hydrodistillation, and its chemical profile was analyzed via GC/MS to give limonene as the major component (81.90 %). <em>C. reticulata</em> demonstrated remarkable antioxidant potential in DPPH (1,1-diphenyl-2-picrylhydrazyl) with in IC<sub>50</sub> (2.01 ± 0.01 mg/mL), ABTS (bleaching assay) (3.47 ± 0.02 mg/mL), and FRAP (iron reduction) (4.71 ± 0.43 mg/mL) assays, surpassing pure limonene. A synergistic effect was a key feature. In antibacterial tests, <em>C. reticulata</em> exhibited significant activity with a minimum inhibitory concentration (MIC) ranging from 12.5 to 25 µL/mL against four various bacteria (<em>Staphylococcus aureus, Bacillus subtilis, Proteus mirabilis</em> and <em>Escherichia coli</em>). Moreover, <em>C. reticulata</em> displayed impressive anti-corrosion capabilities, achieving up to 92.5 % protection at 1000 ppm using PDP, and 93.1 % using EIS and 90.1 % using WL. Langmuir adsorption isotherm analysis supported inhibitor adsorption, and potentiodynamic polarization curves confirmed its mixed-type action. These findings highlight <em>C. reticulata's</em> promise as a natural antioxidant, antimicrobial, and anti-corrosion agent.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"50 ","pages":"Article 101114"},"PeriodicalIF":2.218,"publicationDate":"2024-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139396569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and molecular docking study of thiophene-bearing thiourea derivatives as potential acetylcholinesterase, and butyrylcholinesterase inhibitors 作为潜在乙酰胆碱酯酶和丁酰胆碱酯酶抑制剂的噻吩硫脲衍生物的合成与分子对接研究
IF 2.218
Chemical Data Collections Pub Date : 2024-01-06 DOI: 10.1016/j.cdc.2024.101113
Hayat Ullah , Maria Bashir , Fahad Khan , Iram Iqbal , Aroosa Iqbal , Fazal Rahim
{"title":"Synthesis and molecular docking study of thiophene-bearing thiourea derivatives as potential acetylcholinesterase, and butyrylcholinesterase inhibitors","authors":"Hayat Ullah ,&nbsp;Maria Bashir ,&nbsp;Fahad Khan ,&nbsp;Iram Iqbal ,&nbsp;Aroosa Iqbal ,&nbsp;Fazal Rahim","doi":"10.1016/j.cdc.2024.101113","DOIUrl":"10.1016/j.cdc.2024.101113","url":null,"abstract":"<div><p>A new series of thiophene-bearing thiourea derivatives (<strong>1–11</strong>) were synthesized and characterized through <sup>13</sup>C NMR, <sup>1</sup>H NMR and HR-EIMS. The synthesized derivatives were screened against acetylcholinesterase, and butyrylcholinesterase inhibitory potentials. All derivatives display a variable degree of inhibitory potential ranging from 0.40 ± 0.05 to 26.40 ± 0.40 µM (against AChE) and 1.80 ± 0.10 to 36.80 ± 0.90 µM (against BuChE) as compared to standard drug donepezil (IC<sub>50</sub> = 2.16 ± 0.12 µM and 4.5 ± 0.11 µM, respectively). In both cases, among the series analogues <strong>3, 5, 7, 9,</strong> and <strong>10</strong> showed many folds better activity than standard drug donepezil. Structure-activity relationship has been also established for all newly synthesized compounds, mainly based on substitution patterns on the phenyl ring. The binding interaction of the most active derivatives with the active site of enzymes was confirmed through a molecular docking study. To evaluate the stability of the protein-ligand complexes 10 ns MD simulation was carried out. The most potent compound such as compound 3 revealed great stability during the 10 ns simulation.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"50 ","pages":"Article 101113"},"PeriodicalIF":2.218,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139375037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Volumetric properties of binary mixtures of (ethylene glycol or glycerol + benzene or cyclohexane or hexane) at varying temperatures 乙二醇或甘油 + 苯或环己烷或正己烷)二元混合物在不同温度下的体积特性
IF 2.218
Chemical Data Collections Pub Date : 2023-12-29 DOI: 10.1016/j.cdc.2023.101109
M. Ramadevi, S. Kavitha, E.Jagadeesh Kumar, J.Kumara Swamy, B. Satheesh
{"title":"Volumetric properties of binary mixtures of (ethylene glycol or glycerol + benzene or cyclohexane or hexane) at varying temperatures","authors":"M. Ramadevi,&nbsp;S. Kavitha,&nbsp;E.Jagadeesh Kumar,&nbsp;J.Kumara Swamy,&nbsp;B. Satheesh","doi":"10.1016/j.cdc.2023.101109","DOIUrl":"10.1016/j.cdc.2023.101109","url":null,"abstract":"<div><p>The density values were measured as a function of mole fraction [(ethylene glycol or glycerol] for binary liquid systems such as [ethylene glycol or glycerol + (hexane or cyclohexane or benzene] at a temperature between 283.15 K and 328.15 K and atmospheric pressure. Using density data, the values of molar volumes, excess molar volume, and apparent molar volumes were calculated. Further, excess molar volume was correlated with the Redlich–Kister model. It is observed that in all systems, density data was decreased with an increase in the temperature and also increased with the concentration of ethylene glycol and glycerol. Excess molar volume for all the binary systems were positive deviations over the entire composition range. Each system exhibited more positive at a higher temperature. The obtained results are discussed in terms of packing efficiency, <span><math><mrow><mi>π</mi><mo>−</mo><mtext>OH</mtext></mrow></math></span> bonding, and dispersion forces.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"49 ","pages":"Article 101109"},"PeriodicalIF":2.218,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405830023001209/pdfft?md5=81634d6e178d4900890ada7538c1b3df&pid=1-s2.0-S2405830023001209-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139064263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preparation and Rheological Characterization of Water-Soluble Boger Fluids 水溶性博格流体的制备和流变特性分析
IF 2.218
Chemical Data Collections Pub Date : 2023-12-28 DOI: 10.1016/j.cdc.2023.101112
Amanjot Kaur, Amit Sobti, Ravinder Kumar Wanchoo
{"title":"Preparation and Rheological Characterization of Water-Soluble Boger Fluids","authors":"Amanjot Kaur,&nbsp;Amit Sobti,&nbsp;Ravinder Kumar Wanchoo","doi":"10.1016/j.cdc.2023.101112","DOIUrl":"10.1016/j.cdc.2023.101112","url":null,"abstract":"<div><p>The primary focus of the study is to prepare and characterize water-soluble Boger fluids as they offer improved handling characteristics. The fluids have been prepared in the concentration range of 0.02–0.05 % (wt/vol.) Polyacrylamide (PAA) in a mixture of 80 % glycerol and 20 % distilled water by volume. Dynamic and steady shear data are represented in the temperature range of 15–35 °C. The shear mode data were fitted to power law model to calculate the flow consistency index (K) and flow behavior index (n). With increase in PAA concentration, the fluid character shifts from Boger to shear thinning viscoelastic fluid. Fluid relaxation time (λ) was calculated by fitting the oscillatory data to four mode Maxwell model. Empirical equations for the prediction of K, n, and λ are proposed by incorporating simultaneous effect of polymer concentration and temperature. Presented data could be of great use in unit operations such as fixed and fluidized beds dealing with Boger fluids.</p></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"49 ","pages":"Article 101112"},"PeriodicalIF":2.218,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405830023001234/pdfft?md5=33989d9275f60610613ef9fc93730665&pid=1-s2.0-S2405830023001234-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139052924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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