Graphical Contents Graphical Contents / European Journal of Chemistry 11 (4) (2020) iii-vii European Journal of Chemistry ISSN 2153-2249 (Print) / ISSN 2153-2257 (Online) – Copyright © 2020 Atlanta Publishing House LLC – Printed in the USA. This work is published and licensed by Atlanta Publishing House LLC – CC BY NC – Some Rights Reserved. DOI: http://dx.doi.org/10.5155/eurjchem.11.4.iii-vii.2053 European Journal of Chemistry A n I n t e r n a t i o n a l O p e n A c c e s s J o u r n a l Graphical Contents Volume 11, Issue 4, 31 December 2020 European Journal of Chemistry 11 (4) (2020) 261-275 Regiospecific substitution of the β-vinylic sp2 carbon of cyclohexenones bearing the α-chloro- and β-tosylate-groups: Single crystal XRD/Hirshfeld surface/in-silico studies of three representative compounds Arkalgud Satyanarayana Jeevan Chakravarthy and Suresh Hari Prasad O O O O NCS, CHCl3 pTSA, rt O OTs pTSCl, TEA THF Cl Cl O ArB(OH)2, (4a-i) Cl RPd(OAc)2, P(Ph3)3 K3PO4 1,4-dioxane, 110 °C Regiospecific Suzuki-Miyaura 1 2 3 5a-i European Journal of Chemistry 11 (4) (2020) 276-279 NaOH/PEG-400: An eloquent system for the synthesis of new thienyl benzo[b]1,4-diazepines Gajanan Gopinath Mandawad, Baseer Mubeen Shaikh, Santosh Subhash Chobe and Shankaraiah Guruvaiah Konda N NH SCl R S O Ar R Cl NH2 NH2 NaOH/PEG-400 80 oC, Stirring o-PDA 1a-h 2a-h Ar Hx Hb Ha European Journal of Chemistry 11 (4) (2020) 280-284 Effect of inclusion of citric acid and Lutrol® F-68 on ziprasidone and β-cyclodextrin complexation: Characterization, solubility and dissolution studies Vaishali Yogesh Londhe and Sreevidya Ramesh Krishnan NH O Cl NNS N Ziprasidone 0 10 20 30 40 50 60 70 80 90 100 5 10 15 20 30 45 60 Dr ug re le as e (% ) Time (min) Drug SDLutrol KNLutrol PMLutrol SDCA KNCA PMCA y = 0.953x + 1.359 R² = 0.9792 y = 0.9668x + 1.6756 R² = 0.98 y = 1.665x + 2.117 R² = 0.9868 0 2 4 6 8 10 12 3 6 9 12 15 Co nc en tra tio n of Z ip ra si do ne (m M ) Concentration of β-CD (mM) Binary Ternary LF68 Teranry CA Linear (Binary) Linear (Ternary LF68) Linear (Teranry CA) http://dx.doi.org/10.5155/eurjchem.11.4.iii-vii.2053 iv Graphical Contents / European Journal of Chemistry 11 (4) (2020) iii-vii 2020 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.11.4.iii-vii.2053 European Journal of Chemistry 11 (4) (2020) 285-290 Synthesis of mono and bis-substituted asymmetrical compounds, (1-(pyridin-2-yl)ethylidene)carbonohydrazide and 1-(2'-hydroxybenzylidene)-5-(1'-pyridylethylidene)carbonohydrazone: Structural characterization and antioxidant activity study Thierno Moussa Seck, Fatou Dieng Faye, Aïssatou Alioune Gaye, Ibrahima Elhadji Thiam, Ousmane Diouf, Mohamed Gaye and Pascal Retailleau European Journal of Chemistry 11 (4) (2020) 291-297 Spectrophotometric method for determination of ranitidine hydrochloride in bulk and in pharmaceutical preparation using ninhydrin Hutaf Mustafa Baker, Hussam Ahmad Alsaoud and Hamzeh Mohamad Abdel-Halim European Journal of Chemistry 11 (4) (2020) 298-303 Synthesis of bis-azobenzene derivatives with reactive bromohexyl unit and carboxylic acid group based on Disperse Yellow 7 Alina Madalina Darabut, Olha Hennadiivna Purikova and Yevheniia Volodymyrivna Lobko N N OH H3C N N N N O H3C N N N N O H3C N N Conjugated bis-azobenzene unit Br O OH European Journal of Chemistry 11 (4) (2020) 304-313 Efficient synthesis of diversely substituted pyrazolo[1,5-a]pyrimidine derivatives promoted by ultrasound irradiation in water and their antibacterial activities Susma Das, Shilpika Khanikar, Shunan Kaping, Jayanti Datta Roy, Arnab Sen, Philippe Helissey and Jai Narain Vishwakarma O O N N N O O O N N N CH3 O O O O N N N N O O N N N X O NX N O N O O O N O O N US, KHSO 4, Aq. medium N N H O O NH2 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 350 400 450 500 550 600 650 700 750 Ab so rb an ce Ninhydrin RNH Product 0.0 0.2 0.4 0.6 0.8 1.0 380 430 480 530 580 630 680 730 780 Ab so rb an ce a b c d e f Graphical Contents / European Journal of Chemistry 11 (4) (2020) iii-vii v 2020 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.11.4.iii-vii.2053 European Journal of Chemistry 11 (4) (2020) 314-318 The incidence of kryptoracemic crystallization in [CoIII(tren)XY]+ compounds: The case of cis-[CoIII(tren)Cl2]Cl·H2O Mina Mikhael, Mary Hanna, Evana Halaka, Ivan Bernal and Roger Lalancette European Journal of Chemistry 11 (4) (2020) 319-323 Crystal and molecular structure of bis(N-(diethylcarbamothioyl)cyclohexane carboxamido)copper(II) complex Cemal Koray Ozer, Gun Binzet and Hakan Arslan European Journal of Chemistry 11 (4) (2020) 324-333 Synthesis, X-ray structure, and DFT analysis of a binary complex of 3,3'-[(3-benzimidazolyl)methylene]bis(4-hydroxy-2H-1- benzopyran-2-one): 5-Methyl-1,3-thiazol-2(3H)-imine Gopal Sharma, Anshul Uppal, Sumati Anthal, Madhukar Baburao Deshmukh, Priyanka Pandharinath Mohire, Tanaji Ramchandra Bhosale, Chellappanpillai Sudarsanakumar and Rajni Kant European Journal of Chemistry 11 (4) (2020) 334-341 Imino-pyridyl and PPh3 mixed ligand complexes of Cu(I)X (X: I, Br, and Cl): Synthesis, structure, DFT and Hirshfeld surface studies Jahangir Mondal, Amit Kumar Manna and Goutam Kumar Patra CH2Cl2 RT NN N N2 CuBr 2 PPh3 vi Graphical Contents / European Journal of Chemistry 11 (4) (2020) iii-vii 2020 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.11.4.iii-vii.2053 European Journal of Chemistry 11 (4) (2020) 342-350 Mechanistic insight into propane dehydrogenation into propylene over chromium (III) oxide by cluster approach and Density Functional Theory calculations Toyese Oyegoke, Fadimatu Nyako Dabai, Adamu Uzairu and Baba El-Yakubu Jibril European Journal of Chemistry 11 (4) (2020) 351-363 Mitigate the cytokine storm due to the severe COVID-19: A computational investigation of possible allosteric inhibitory actions on IL-6R and IL-1R using selected phytochemicals Harindu Rajapaksha, Bingun Tharusha Perera, Jeewani Meepage, Ruwan Tharanga Perera and Chithramala Dissanayake European Journal of Chemistry 11 (4) (2020) 364-369 Nutritional and antioxidant potential of seeds from two Cucurbitaceae species from Senegal Amadou Diop, Serigne Omar Sarr, Awa Boubou Sall, Ousmane Niass, Bara Ndiaye and Yerim Mbagnick Diop European Journal of Chemistry 11 (4) (2020) 370-376 The essential oil compositions of Rosmarinus officinalis L. leaves growing in Mersin, Turkey Gun Binzet, Riza Binzet and Hakan Arslan 0 200 400 600 800 1000 1200 Potassium Magnesium Phosphorous Calcium Iron Co nt en t ( m g/ 10 0 g) C. lanatus C. pepo Graphical Contents / European Journal of Chemistry 11 (4) (2020) iii-vii vii 2020 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.11.4.iii-vii.2053 European Journal of Chemistry 11 (4) (2020) 377-384 Synthesis, crystal structures and antimicrobial activity of palladium metal complexes of sulfonyl hydrazone ligands Samina Karimkha Tadavi, Ratnamala Subhash Bendre, Satish Vittal Patil, Shubha Gaguna and Jamatsing Darbarsing Rajput European Journal of Chemistry 11 (4) (2020) 385-395 A highly sensitive and selective spectrophotometric method for the determination of vanadium at nanotrace levels in some environmental, biological, soil, food, and pharmaceutical samples using salicylaldehyde-benzoylhydrazone Shaifa 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