SYNTHESIS OF THE COMPLEX COMPOUND OF Zn(II) WITH 4-MINOBENZOIC ACID {[Zn(H2O)2(SO4)2] (C7H7NO2)2}n
DOI:
https://doi.org/10.47390/ydif-y2025v1i9/n01Keywords:
Zn(II) complex, 4-aminobenzoic acid, coordination polymer, μ₂-sulfato bridge, catena structure, X-ray structural analysis, supramolecular structureAbstract
This article presents the synthesis and crystal structure analysis of a new coordination polymer based on 4-aminobenzoic acid (p-ABA) and zinc(II) sulfate — Poly[catena-[diaqua-bis(μ₂-sulfato-O,O′)-bis(4-aminobenzoic acid)zinc(II)]] {[Zn(H₂O)₂(SO₄)₂](C₇H₇NO₂)₂}ₙ. The complex crystallizes in the monoclinic crystal system with the P2₁/c space group, where Zn(II) ions are octahedrally coordinated by two water molecules and two sulfate anions. Within the structure, the sulfate groups act as μ₂-bridging ligands linking Zn centers into one-dimensional catena chains, while the p-ABA molecules stabilize the supramolecular framework through hydrogen bonding interactions. According to the crystallographic data, the compound exhibits a well-ordered structure and a robust coordination framework. These results confirm the structural stability of Zn(II)–p-ABA-based polymeric complexes and highlight their potential significance in coordination chemistry
References
1. Cotton, F. A., Wilkinson, G., Murillo, C. A., Bochmann, M. Advanced Inorganic Chemistry. 6th ed. – New York: Wiley, P. 1999. – 1358 .
2. Dutta, R. L., Syamal, A. Elements of Magnetochemistry. – New Delhi: Affiliated East-West Press Pvt. Ltd., 1993. – 240 p.
3. Hu, Z., Deibert, B. J., Li, J. Luminescent metal–organic frameworks for chemical sensing and explosive detection // Chemical Society Reviews. – 2014. – Vol. 43, No. 16. – P. 5815–5840. – DOI: 10.1039/C4CS00010B.
4. Ma, L., Abney, C., Lin, W. Enantioselective catalysis with homochiral metal–organic frameworks // Chemical Society Reviews. – 2009. – Vol. 38, No. 5. – P. 1248–1256. – DOI: 10.1039/B807083K.
5. Cai, J., Zhang, Y., Liu, J., Wang, Y. Zinc(II) coordination polymers with aromatic carboxylate ligands: structure and luminescence // CrystEngComm. – 2018. – Vol. 20, No. 3. – P. 396–404. – DOI: 10.1039/C7CE01735H.
6. Liu, Y., Chen, X., Zhao, B. Sulfate-bridged zinc(II) coordination polymers: structures and luminescence // CrystEngComm. – 2017. – Vol. 19, No. 22. – P. 2980–2989. – DOI: 10.1039/C7CE00385H.
7. Li, P., Wang, X., Gao, S. Coordination polymers of Zn(II) with aromatic carboxylate ligands: synthesis, structure, and properties // Inorganica Chimica Acta. – 2020. – Vol. 502. – Article ID 119358. – DOI: 10.1016/j.ica.2019.119358.
8. Zhang, Y., Bu, X. Hydrogen-bonded frameworks of Zn(II) complexes with amino-substituted benzoic acids // Dalton Transactions. – 2015. – Vol. 44, No. 2. – P. 775–783. – DOI: 10.1039/C4DT03048B.
9. Qin, J., Zhang, Q., Shi, Z. Thermal stability and coordination behavior of zinc(II) carboxylate complexes // Polyhedron. – 2019. – Vol. 164. – P. 168–176. – DOI: 10.1016/j.poly.2019.03.020.
10. Gao, E., Liu, P., Xu, C., Zhang, T. Design of Zn(II) coordination polymers with multifunctional carboxylate ligands for luminescent applications // Journal of Coordination Chemistry. – 2021. – Vol. 74, No. 13. – P. 2301–2313. – DOI: 10.1080/00958972.2021.1923451.
11. Sheldrick G. M. SHELXT–Integrated space-group and crystal-structure determination //Acta Crystallographica Section A: Foundations and Advances. – 2015. – Т. 71. – №. 1. – С. 3-8.
12. Sheldrick G. M. A short history of SHELX //Acta Crystallographica Section A: Foundations of Crystallography. – 2008. – Т. 64. – №. 1. – С. 112-122.
13. Dolomanov O. V. et al. OLEX2: a complete structure solution, refinement and analysis program //Journal of applied crystallography. – 2009. – Т. 42. – №. 2. – С. 339-341.
This work is licensed under a 