Jahn-Teller Effect in Copper(II) Coordination Compounds with Halide Ions

Penić, Nikolina; Mišura, Ozana; Novak, Mario; Vušak, Darko

doi:10.15255/KUI.2025.019

Chemistry in Industry : Journal of Chemists and Chemical Engineers of Croatia, Vol. 75 No. 1-2, 2026.

Original scientific paper

https://doi.org/10.15255/KUI.2025.019

Jahn-Teller Effect in Copper(II) Coordination Compounds with Halide Ions

Nikolina Penić ; University of Zagreb Faculty of Science, Department of Physics, Experimental Physics Division, Bijenička cesta 32, 10 000 Zagreb, Croatia *
Ozana Mišura ; University of Zagreb Faculty of Science, Department of Chemistry, Division of General and Inorganic Chemistry, Horvatovac 102a, 10 000 Zagreb, Croatia
Mario Novak ; University of Zagreb Faculty of Science, Department of Physics, Experimental Physics Division, Bijenička cesta 32, 10 000 Zagreb, Croatia
Darko Vušak ; University of Zagreb Faculty of Science, Department of Chemistry, Division of General and Inorganic Chemistry, Horvatovac 102a, 10 000 Zagreb, Croatia

* Corresponding author.

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cite

APA 6th Edition

Penić, N., Mišura, O., Novak, M. & Vušak, D. (2026). Jahn-Teller Effect in Copper(II) Coordination Compounds with Halide Ions. Kemija u industriji, 75 (1-2), 29-40. https://doi.org/10.15255/KUI.2025.019

MLA 8th Edition

Penić, Nikolina, et al. "Jahn-Teller Effect in Copper(II) Coordination Compounds with Halide Ions." Kemija u industriji, vol. 75, no. 1-2, 2026, pp. 29-40. https://doi.org/10.15255/KUI.2025.019. Accessed 23 Apr. 2026.

Chicago 17th Edition

Penić, Nikolina, Ozana Mišura, Mario Novak and Darko Vušak. "Jahn-Teller Effect in Copper(II) Coordination Compounds with Halide Ions." Kemija u industriji 75, no. 1-2 (2026): 29-40. https://doi.org/10.15255/KUI.2025.019

Harvard

Penić, N., et al. (2026). 'Jahn-Teller Effect in Copper(II) Coordination Compounds with Halide Ions', Kemija u industriji, 75(1-2), pp. 29-40. https://doi.org/10.15255/KUI.2025.019

Vancouver

Penić N, Mišura O, Novak M, Vušak D. Jahn-Teller Effect in Copper(II) Coordination Compounds with Halide Ions. Kemija u industriji [Internet]. 2026 [cited 2026 April 23];75(1-2):29-40. https://doi.org/10.15255/KUI.2025.019

IEEE

N. Penić, O. Mišura, M. Novak and D. Vušak, "Jahn-Teller Effect in Copper(II) Coordination Compounds with Halide Ions", Kemija u industriji, vol.75, no. 1-2, pp. 29-40, 2026. [Online]. https://doi.org/10.15255/KUI.2025.019

Abstract

This study investigates the structural deformation of copper(II) octahedral coordination compounds caused by the Jahn-Teller effect. The analysis focuses on distortions in bond angles, bond lengths, and differences in bond lengths, with a specific comparison between cis and trans isomers. A classification system is proposed for assessing the level of octahedral distortion based on deviations from an ideal octahedron. The findings indicate that structures with weak or very weak distortions are primarily monomeric units lacking bidentate ligands, while those with strong or very strong distortions often contain bidentate ligands or consist of monomeric, dimeric, or trimeric units. The Jahn-Teller effect was found to manifest predominantly through bond distance deformations between copper and halide ions, as compared to heteroatom bonds. Additionally, elongated octahedral geometries were more prevalent than compressed ones. Of the 123 analysed structures, trans isomerism occurred more frequently, as opposed to cis isomerism. The occurrence of trans isomers increased with stronger octahedral distortions, highlighting a relationship between isomerism and the degree of geometric deformation.