Effect of zinc(+2) on some stereoisomers of penicillanic acid – A DFT study
Abstract
Presently, some penicilloic acid stereoisomers/tautomers and then their interactions with zinc cation have been investigated within the constraints of density functional theory (DFT) theory at the level of B3LYP/6-31++G(d,p). Various data have been collected. The optimized structures of them have exothermic heats of formation and favorable Gibbs free energy of formation values. They are thermally favored and electronically stable at the standard states. Various structural and quantum chemical data have been collected and discussed, including bond densities and time dependent density functional UV-VIS spectra.
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References
Malentyeva, G., & Antonova, L. (1988). Pharmaceutical chemistry (Eng. ed.). Mir Publishers.
Javetz, E. (1984). Penicillins and cephalosporins. In B. G. Katzung (Ed.), Basic and clinical pharmacology. Lange Medical Publications.
Vardanyan, R. (2006). Synthesis of essential drugs. Elsevier. https://doi.org/10.1016/B978-0-444-52166-8.X5000-6
Neu, H. C. (1976). Mecillinam, a novel penicillanic acid derivative with unusual activity against gram-negative bacteria. Antimicrobial Agents and Chemotherapy, 9(5), 793–798.
Stoodley, R. J. (1975). Rearrangements of penicillanic acid derivatives. Tetrahedron, 31(19), 2321–2345. https://doi.org/10.1016/0040-4020(75)80235-3
Demirci, S., Demirbas, A., Ulker, S., Alpay-Karaoglu, S., & Demirbas, N. (2014). Synthesis of some heterofunctionalized penicillanic acid derivatives and investigation of their biological activities. Archiv der Pharmazie, 347(3), 200–220. https://doi.org/10.1002/ardp.201300280
Chen, X., Liu, J., Fan, J., Bu, Y., Wang, Q., Yan, H., Yu, C., & Lin, Q. (2026). Self-assembly of alginate-grafted penicillanic acid derivatives into antibacterial micelles for controlled drug delivery. ACS Omega, 11(13), 20302–20319. https://doi.org/10.1021/acsomega.5c10841
Halipçi-Topsakal, H. N. (2026). Design of novel penicillanic acid derivatives targeting resistant bacterial pathogens and bacterial extracellular vesicles. Proceedings of the 2nd Extracellular Vesicles Conference (TURSEV-26), Ankara, Türkiye, 4–8 June, 4–5.
Yousif, Q. A., Bedair, M. A., Abuelela, A. M., Al-Odail, F., Ansari, A., & Fadel, Z. (2025). Theoretical and experimental aspects of novel penicillanic acid compounds as corrosion inhibitors in acidic solutions. Materials Today Communications, 47, Article 113199. https://doi.org/10.1016/j.mtcomm.2025.113199
Shukla, A., Khan, E., Srivastava, A., Tandon, P., & Sinha, K. (2016). A computational study on molecular structure, multiple interactions, chemical reactivity and molecular docking studies on 6[D (−) α-amino-phenyl-acetamido] penicillanic acid (ampicillin). Molecular Simulation, 42(11), 863–873. https://doi.org/10.1080/08927022.2015.1089996
Bou, G., Santillana, E., Sheri, A., Beceiro, A., Sampson, J. M., Kalp, M., Bethel, C. R., Distler, A. M., Drawz, S. M., Pagadala, S. R. R., & Van Den Akker, F. (2010). Design, synthesis, and crystal structures of 6-alkylidene-2′-substituted penicillanic acid sulfones as potent inhibitors of Acinetobacter baumannii OXA-24 carbapenemase. Journal of the American Chemical Society, 132(38), 13320–13331. https://doi.org/10.1021/ja104840m
Basoglu, S., Ulker, S., Alpay-Karaoglu, S., & Demirbas, N. (2014). Microwave-assisted synthesis of some hybrid molecules containing penicillanic acid or cephalosporanic acid moieties and investigation of their biological activities. Medicinal Chemistry Research, 23(7), 3128–3143. https://doi.org/10.1007/s00044-013-0898-4
Papp-Wallace, K. M., Bethel, C. R., Gootz, T. D., Shang, W., Stroh, J., Lau, W., McLeod, D., Price, L., Marfat, A., Distler, A., Drawz, S. M., Chen, H., Harry, E., Nottingham, M., Carey, P. R., Buynak, J. D., & Bonomo, R. A. (2012). Inactivation of a class A and a class C β-lactamase by 6β-(hydroxymethyl)penicillanic acid sulfone. Biochemical Pharmacology, 83(4), 462–471. https://doi.org/10.1016/j.bcp.2011.11.015
Stewart, J. J. P. (1989). Optimization of parameters for semi-empirical methods I. Journal of Computational Chemistry, 10(2), 209–220. https://doi.org/10.1002/jcc.540100208
Stewart, J. J. P. (1989). Optimization of parameters for semi-empirical methods II. Journal of Computational Chemistry, 10(2), 221–264. https://doi.org/10.1002/jcc.540100209
Leach, A. R. (1997). Molecular modeling. Longman.
Kohn, W., & Sham, L. J. (1965). Self-consistent equations including exchange and correlation effects. Physical Review, 140(4A), A1133–A1138. https://doi.org/10.1103/PhysRev.140.A1133
Parr, R. G., & Yang, W. (1989). Density-functional theory of atoms and molecules. Oxford University Press.
Becke, A. D. (1988). Density-functional exchange-energy approximation with correct asymptotic behavior. Physical Review A, 38(6), 3098–3100. https://doi.org/10.1103/PhysRevA.38.3098
Vosko, S. H., Wilk, L., & Nusair, M. (1980). Accurate spin-dependent electron liquid correlation energies for local spin density calculations: A critical analysis. Canadian Journal of Physics, 58(8), 1200–1211. https://doi.org/10.1139/p80-159
Lee, C., Yang, W., & Parr, R. G. (1988). Development of the Colle-Salvetti correlation energy formula into a functional of the electron density. Physical Review B, 37(2), 785–789. https://doi.org/10.1103/PhysRevB.37.785
Spartan 06. (2006). Wavefunction Inc.
Windholtz, M., Budavari, S., Blumetti, R. F., & Otterbein, E. S. (Eds.). (1983). The Merck index (10th ed.). Merck & Co.
Anslyn, E. V., & Dougherty, D. A. (2006). Modern physical organic chemistry. University Science Books.
Turro, N. J. (1991). Modern molecular photochemistry. University Science Books.
TRİDENT. (2006). Molecular modeling for medicinal chemists. Wavefunction Inc.

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