Conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers
The conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers in different solvents has been investigated. In this paper, the complexation reaction of macrocyclic ligand, 18-crown-6 (18C6), dibenzo-18-crown-6 (DB18C6), and Pb(II) cation was studied in different...
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University PIM Banja Luka
2020-11-01
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| Series: | STED Journal |
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| Online Access: | https://stedj-univerzitetpim.com/wp-content/uploads/2020/12/Conductometric-study-of-ligand-structure-influence-on-the-PbII-complexation-with-crown-ethers.pdf |
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| author | Edita Bjelić Mersiha Suljkanović Jasmin Suljagić Azra Kovačević |
| author_facet | Edita Bjelić Mersiha Suljkanović Jasmin Suljagić Azra Kovačević |
| author_sort | Edita Bjelić |
| collection | DOAJ |
| description | The conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers in different solvents has been investigated. In this paper, the complexation reaction of macrocyclic ligand, 18-crown-6 (18C6), dibenzo-18-crown-6 (DB18C6), and Pb(II) cation was studied in different solvents: dichloromethane (DCM) and 1,2-dichloroethane (1,2-DCE). The effects of surfactant structure (Triton X-100 and Triton X-45) on the conductivity of the Pb(II) complex with 18-crown-6 and dibenzo-18-crown-6 ether have been investigated. The conductance data showed that the stoichiometry of the complexes in most cases is 1:1(ML). It is also demonstrated that the influence of crown ethers is deeply affected by the organic solvent used. In the solvents studied, the stability of the resulting complexes showed higher stability in dichloromethane comparing with 1,2- dichloroethane. Macrocyclic ligand 18-crown-6 showed more suitable for complexation of Pb(II) ions compared to dibenzo-18-crown-6. Adding a surfactant affected the higher absolute values of the conductivity of systems, but not the change in the stoichiometric ratio between a metal ion and macrocyclic ligand. |
| first_indexed | 2024-03-08T08:33:37Z |
| format | Article |
| id | doaj.art-b7e74f36390244b6b91e0c55ea8ba92a |
| institution | Directory Open Access Journal |
| issn | 2637-2150 2637-2614 |
| language | English |
| last_indexed | 2024-03-08T08:33:37Z |
| publishDate | 2020-11-01 |
| publisher | University PIM Banja Luka |
| record_format | Article |
| series | STED Journal |
| spelling | doaj.art-b7e74f36390244b6b91e0c55ea8ba92a2024-02-02T02:27:10ZengUniversity PIM Banja LukaSTED Journal2637-21502637-26142020-11-01221810.7251/STED0220001BConductometric study of ligand structure influence on the Pb(II) complexation with crown ethersEdita Bjelić0Mersiha Suljkanović1Jasmin Suljagić2Azra Kovačević3Faculty of Technology, University of Tuzla, Tuzla Bosnia and HerzegovinaFaculty of Natural Sciences and Mathematics, University of Tuzla, Tuzla, Bosnia and HerzegovinaFaculty of Technology, University of Tuzla, Tuzla Bosnia and HerzegovinaFaculty of Technology, University of Tuzla, Tuzla Bosnia and HerzegovinaThe conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers in different solvents has been investigated. In this paper, the complexation reaction of macrocyclic ligand, 18-crown-6 (18C6), dibenzo-18-crown-6 (DB18C6), and Pb(II) cation was studied in different solvents: dichloromethane (DCM) and 1,2-dichloroethane (1,2-DCE). The effects of surfactant structure (Triton X-100 and Triton X-45) on the conductivity of the Pb(II) complex with 18-crown-6 and dibenzo-18-crown-6 ether have been investigated. The conductance data showed that the stoichiometry of the complexes in most cases is 1:1(ML). It is also demonstrated that the influence of crown ethers is deeply affected by the organic solvent used. In the solvents studied, the stability of the resulting complexes showed higher stability in dichloromethane comparing with 1,2- dichloroethane. Macrocyclic ligand 18-crown-6 showed more suitable for complexation of Pb(II) ions compared to dibenzo-18-crown-6. Adding a surfactant affected the higher absolute values of the conductivity of systems, but not the change in the stoichiometric ratio between a metal ion and macrocyclic ligand.https://stedj-univerzitetpim.com/wp-content/uploads/2020/12/Conductometric-study-of-ligand-structure-influence-on-the-PbII-complexation-with-crown-ethers.pdfcrown etherspb(ii)conductometry18-crown-6 |
| spellingShingle | Edita Bjelić Mersiha Suljkanović Jasmin Suljagić Azra Kovačević Conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers STED Journal crown ethers pb(ii) conductometry 18-crown-6 |
| title | Conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers |
| title_full | Conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers |
| title_fullStr | Conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers |
| title_full_unstemmed | Conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers |
| title_short | Conductometric study of ligand structure influence on the Pb(II) complexation with crown ethers |
| title_sort | conductometric study of ligand structure influence on the pb ii complexation with crown ethers |
| topic | crown ethers pb(ii) conductometry 18-crown-6 |
| url | https://stedj-univerzitetpim.com/wp-content/uploads/2020/12/Conductometric-study-of-ligand-structure-influence-on-the-PbII-complexation-with-crown-ethers.pdf |
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