Graphical Contents Graphical Contents / European Journal of Chemistry 14 (4) (2023) iii-v European Journal of Chemistry ISSN 2153-2249 (Print) / ISSN 2153-2257 (Online) – Copyright © 2023 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.14.2.iii-v.2503 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 14, Issue 4, 31 December 2023 European Journal of Chemistry 14 (4) (2023) 429-438 Hydrothermally synthesized (N,O)-linked Cu(II)-based coordination complex as a potential antibacterial agent Anmol Chettri, Sudarshan Pradhan, Pritika Gurung, Sriparna Roy and Biswajit Sinha European Journal of Chemistry 14 (4) (2023) 439-444 Synthesis of coumarin-3-carboxylic acids in waste curd water: A green approach Nitin Bhaidas Sonawane, Jamatsing Darbarsing Rajput and Dilip Ramsing Patil European Journal of Chemistry 14 (4) (2023) 445-450 Isotopic study of rainfall and definition of local meteoric water lines: Case of the rainfall stations of the city of Bangui in Central African Republic Eric Foto, Oscar Allahdin, Olga Biteman and Nicole Poumaye -6 -5 -4 -3 -2 -1 0 1 2 3 4 0 50 100 150 200 250 300 350 400 450 δ1 8 O , i n ‰ Ra in , m m Months University Sodeca δ18O, in ‰ University δ18O, in ‰ Sodeca δ2H = 7.5593 x δ18O + 10.423 University δ2H = 8.4085 x δ18O + 12.493 Sodeca R² = 0.9909 R² = 0.9909 δ2H = 7.9387 x δ18O + 11.349 R² = 0.9939 Bangui -40 -30 -20 -10 0 10 20 30 40 -6 -5 -4 -3 -2 -1 0 1 2 3 4 δ2 H δ18O https://dx.doi.org/10.5155/eurjchem.14.2.iii-v.2503 iv Graphical Contents / European Journal of Chemistry 14 (4) (2023) iii-v 2023 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.14.4.iii-v.2503 European Journal of Chemistry 14 (4) (2023) 451-459 Toxicological aspects of wastewater Frantisek Ondrasik and Sarka Krocova European Journal of Chemistry 14 (4) (2023) 460-465 Synthesis of calcium propionate from indigenous limestone from Swat area in Pakistan Ansar Mahmood, Samreen Zahra, Rashid Mahmood and Asma Sheikh European Journal of Chemistry 14 (4) (2023) 466-472 Design, synthesis, spectral analysis, and biological evaluation of Schiff bases with a 1,3,4-thiadiazole moiety as an effective inhibitor against bacterial and fungal strains Sajid Ajit Malak, Jamatsing Darbarsing Rajput and Mustakim Sharif N N S NH2 O R N S NN R Cytrius juice European Journal of Chemistry 14 (4) (2023) 473-477 Effect of UV radiation on postharvest conservation of blueberries Eliana Vanesa Campero, Maria Julia Barrionuevo and Ana Clelia Gomez Marigliano UV Radiation → 0 2 4 200 300 400 500 600 A bs or ba nc e Wavelength [nm] FCN (t = 0 days) FCN (t = 3 days) FCN (t = 7 days) FCI (t = 0 days) FCI (t = 3 days) FCI (t = 7 days) Graphical Contents / European Journal of Chemistry 14 (4) (2023) iii-v v 2023 – European Journal of Chemistry – CC BY NC – DOI: 10.5155/eurjchem.14.4.iii-v.2503 European Journal of Chemistry 14 (4) (2023) 478-485 Synthesis and antimicrobial activity of new ent-kaurene-type diterpenoid derivatives Andrés Eduardo Márquez-Chacón, Alida Pérez Colmenares, Luis Rojas Fermín, Rosa Aparicio, Freddy Alejandro Ramos, Alfredo Usubillaga and Ysbelia Obregón O O HO O O O O O O O O O HOOC O O O OBr O O O European Journal of Chemistry 14 (4) (2023) 486-493 Evaluation of Coulomb integrals with various energy operators to estimate the correlation energy in electronic structure calculations for molecules Sandor Kristyan ( ) ( ) ??? 12 1 2 r ρ ρ European Journal of Chemistry 14 (4) (2023) 494-498 In an attempt to add ligands to the sixth (axial) position of vanadyl bis-acetylacetonate: A unique tetranuclear vanadyl species Ivan Bernal and Roger Lalancette European Journal of Chemistry 14 (4) (2023) 499-506 A square planar copper(II) complex noncovalently conjugated with a p-cresol for bioinspired catecholase activity Subham Mukherjee, Gayetri Sarkar, Abhranil De and Bhaskar Biswas PrintField10: PrintField11: PrintField12: PrintField20: PrintField21: PrintField22: