Graphical Content Graphical Contents / European Journal of Chemistry 12 (2) (2021) iii-vii European Journal of Chemistry ISSN 2153-2249 (Print) / ISSN 2153-2257 (Online) – Copyright © 2021 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. https://dx.doi.org/10.5155/eurjchem.12.2.iii-vii.2125 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 12, Issue 2, 30 June 2021 European Journal of Chemistry 12 (2) (2021) 109-116 The synthesis and crystallographic characterization of 4-methylbenzenesulfonamide derivatives Brock Anton Stenfors and Felix Nyuangem Ngassa European Journal of Chemistry 12 (2) (2021) 117-123 Synthesis and properties of photocatalysts for the high degradation of sulfadiazine Zhenzhao Pei and Feng Li European Journal of Chemistry 12 (2) (2021) 124-132 Antimicrobial and catalytic applications of TiO2 nanoparticles prepared from titanium(IV)-Schiff base complexes as precursor Mohammad Nasir Uddin, Tareq Mahmud, Wahhida Shumi and AKM Atique Ullah 0 10 20 30 40 50 60 0 50 100 150 200 250 300 De gr ad at io n, % Time, min N1 N2 N3 N4 N5 https://dx.doi.org/10.5155/eurjchem.12.2.iii-vii.2125 iv Graphical Contents / European Journal of Chemistry 12 (2) (2021) iii-vii 2021 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.12.2.iii-vii.2125 European Journal of Chemistry 12 (2) (2021) 133-146 Synthesis, spectral, crystallographic, and computational investigation of a novel molecular hybrid 3-(1-((benzoyloxy)imino)ethyl)-2H-chromen-2-ones Kannan Gokula Krishnan and Venugopal Thanikachalam European Journal of Chemistry 12 (2) (2021) 147-153 Crystal structure of bis(1,8-dibenzoyl-7-methoxynaphthalen-2-yl) terephthalate: Terephthalate phenylene moiety acts as bidentate hydrogen acceptor of bidirectional C-H···π non-classical hydrogen bonds Kikuko Iida, Rei Sakamoto, Kun Li, Miyuki Kobayashi, Hiroaki Iitsuka, Noriyuki Yonezawa and Akiko Okamoto European Journal of Chemistry 12 (2) (2021) 154-158 Reactions under increased pressure: The reactivity of functionally substituted 3-oxo-2-arylhydrazones toward active methylene reagents in Q-tube Douaa Salman AlMarzouq AcOH/AcONH4 + Q-tube N R1 CN N R3 N R2 DMFDMA N R1 CN N N R2 NMe2 R3 NC C R3 O O N HN R2 R1 OH AcOH/AcONH4 N N O O Ph CN O Ph O Ph Ph NH N O O CNNC+ Q-tube Q-tube European Journal of Chemistry 12 (2) (2021) 159-164 Crystal structures of bis-{N-[1-(pyridin-2-yl-κN)methylidene]nicotine hydrazide-κ2N’,O}cobalt(II)bis(perchlorate) dihydrate and bis-{N'-[1-(pyridin-2-yl-κN)ethylidene]nicotinohydrazide-κ2N',O}copper(II) perchlorate Moussa Faye, Mouhamadou Moustapha Sow, Papa Aly Gaye, Moussa Dieng and Mohamed Gaye Graphical Contents / European Journal of Chemistry 12 (2) (2021) iii-vii v 2021 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.12.2.iii-vii.2125 European Journal of Chemistry 12 (2) (2021) 165-167 Three-dimensional macroassembly of chromic hydroxide Jiaxin Zhou and Zhenzhao Pei European Journal of Chemistry 12 (2) (2021) 168-178 Stability indicating HPLC-Fluorescence detection method for the simultaneous determination of linagliptin and mpagliflozin in their combined pharmaceutical preparation Mohamed Rizk, Ali Kamal Attia, Heba Yosry Mohamed and Mona Elshahed European Journal of Chemistry 12 (2) (2021) 179-186 Crystallographic identification of a novel 2,4,5-tri(N-methyl-4-pyridinium)-1,3-thiazole with a complex network of polyiodide/iodine counter ions and co-crystallized cyclododecasulfur (S12) Ibukun Oluwaseun Shotonwa and René T. Boeré European Journal of Chemistry 12 (2) (2021) 187-191 X-ray crystal structure analysis of 5-bromospiro[indoline-3,7'-pyrano[3,2-C:5,6-C']dichromene]-2,6',8'-trione Varun Sharma, Bubun Banerjee, Gurpreet Kaur and Vivek Kumar Gupta vi Graphical Contents / European Journal of Chemistry 12 (2) (2021) iii-vii 2021 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.12.2.iii-vii.2125 European Journal of Chemistry 12 (2) (2021) 192-196 Molecular docking analysis on the interaction between bovine serum albumin and three commercial fluoroquinolones: Ciprofloxacin, enrofloxacin and pefloxacin Otávio Augusto Chaves and Leonardo Vazquez European Journal of Chemistry 12 (2) (2021) 197-203 Synthesis, crystal structure, and electrochemical hydrogenation of the La2Mg17-xMx (M = Ni, Sn, Sb) solid solutions Vasyl Kordan, Vitalii Nytka, Ivan Tarasiuk, Oksana Zelinska and Volodymyr Pavlyuk European Journal of Chemistry 12 (2) (2021) 204-215 Synthesis, crystal structure with free radical scavenging activity and theoretical studies of Schiff bases derived from 1-naphthylamine, 2,6-diisopropylaniline, and substituted benzaldehyde Segun Daniel Oladipo, Tunde Lewis Yusuf, Sizwe Joshua Zamisa, Gideon Femi Tolufashe, Kolawole Ayodapo Olofinsan, Zikhona Tywabi-Ngeva and Nonhlangabezo Mabuba European Journal of Chemistry 12 (2) (2021) 216-221 Synthesis and characterization of Ti(IV), Zr(IV) and Al(III) salen-based complexes Joana Hipólito, Luis Alves and Ana Martins OH N N HO Ph Ph tBu tBu tButBu i) 2 NaH ii) MCl4 2 Al(CH2CH(CH3)2)3 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 Fe rr ic re du ci ng a nt io xi da nt p ow er (% F RA P) Concentration (mM) 1 2 3 Trolox Graphical Contents / European Journal of Chemistry 12 (2) (2021) iii-vii vii 2021 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.12.2.iii-vii.2125 European Journal of Chemistry 12 (2) (2021) 222-234 The scientific community in COVID-19 global pandemic: A systematic update on recent progress and challenges Zeba Firdaus, Sushil Kumar Singh, Tryambak Deo Singh and Meenakshi Singh PrintField10: PrintField11: PrintField12: PrintField13: PrintField14: PrintField20: PrintField21: PrintField22: PrintField23: PrintField24: