Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study
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2013
Authors
Petković, Branka B.
Milčić, Miloš K.

Stanković, Dalibor

Stambolić, I.
Manojlović, Dragan D.

Jovanović, V. M.
Sovilj, Sofija P.
Article (Published version)

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The complexation reactions between octaazamacrocyclic ligand N,N',N '',N'"-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane (tpmc) and Co2+, Ni2+, Zn2+ and Cu2+ metal cations have been studied conductometrically in acetonitrile and aqueous solutions. The conductance data exhibit different stoichiometry of the complexes in two studied solutions. In most cases 1:1 (ML) complexes were formed while in some cases 2:1 (M2L) complexes are evident. The stability constants of the resulting 1:1 complexes were determined by computer fitting of the conductance/mole ratio data. Theoretical DFT calculations were used to explain metal binding capability of tpmc ligand and the binding sequences were found to follow the order: Cu2+ gt gt Ni2+ gt Co2+ gt Zn2+. The combination of results obtained by this theoretical approach and conductometric study successfully explains sensitivity and selectivity of recently developed tpmc based ISE and could play a guiding role in planning experiment...s with large macrocyclic ligands.
Keywords:
N,N ',N '',N '''-Tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane (tpmc) / Co2+, Ni2+, Zn2+ and Cu2+ ions / Binding energy / Conductometry / ConformationsSource:
Electrochimica Acta, 2013, 89, 680-687Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Projects:
Note:
- Supplementary material: http://cherry.chem.bg.ac.rs/handle/123456789/3473
DOI: 10.1016/j.electacta.2012.11.100
ISSN: 0013-4686
WoS: 000315558200088
Scopus: 2-s2.0-84871423728
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Hemijski fakultetTY - JOUR AU - Petković, Branka B. AU - Milčić, Miloš K. AU - Stanković, Dalibor AU - Stambolić, I. AU - Manojlović, Dragan D. AU - Jovanović, V. M. AU - Sovilj, Sofija P. PY - 2013 UR - http://cherry.chem.bg.ac.rs/handle/123456789/1607 AB - The complexation reactions between octaazamacrocyclic ligand N,N',N '',N'"-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane (tpmc) and Co2+, Ni2+, Zn2+ and Cu2+ metal cations have been studied conductometrically in acetonitrile and aqueous solutions. The conductance data exhibit different stoichiometry of the complexes in two studied solutions. In most cases 1:1 (ML) complexes were formed while in some cases 2:1 (M2L) complexes are evident. The stability constants of the resulting 1:1 complexes were determined by computer fitting of the conductance/mole ratio data. Theoretical DFT calculations were used to explain metal binding capability of tpmc ligand and the binding sequences were found to follow the order: Cu2+ gt gt Ni2+ gt Co2+ gt Zn2+. The combination of results obtained by this theoretical approach and conductometric study successfully explains sensitivity and selectivity of recently developed tpmc based ISE and could play a guiding role in planning experiments with large macrocyclic ligands. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Electrochimica Acta T1 - Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study VL - 89 SP - 680 EP - 687 DO - 10.1016/j.electacta.2012.11.100 ER -
@article{ author = "Petković, Branka B. and Milčić, Miloš K. and Stanković, Dalibor and Stambolić, I. and Manojlović, Dragan D. and Jovanović, V. M. and Sovilj, Sofija P.", year = "2013", url = "http://cherry.chem.bg.ac.rs/handle/123456789/1607", abstract = "The complexation reactions between octaazamacrocyclic ligand N,N',N '',N'"-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane (tpmc) and Co2+, Ni2+, Zn2+ and Cu2+ metal cations have been studied conductometrically in acetonitrile and aqueous solutions. The conductance data exhibit different stoichiometry of the complexes in two studied solutions. In most cases 1:1 (ML) complexes were formed while in some cases 2:1 (M2L) complexes are evident. The stability constants of the resulting 1:1 complexes were determined by computer fitting of the conductance/mole ratio data. Theoretical DFT calculations were used to explain metal binding capability of tpmc ligand and the binding sequences were found to follow the order: Cu2+ gt gt Ni2+ gt Co2+ gt Zn2+. The combination of results obtained by this theoretical approach and conductometric study successfully explains sensitivity and selectivity of recently developed tpmc based ISE and could play a guiding role in planning experiments with large macrocyclic ligands.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Electrochimica Acta", title = "Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study", volume = "89", pages = "680-687", doi = "10.1016/j.electacta.2012.11.100" }
Petković BB, Milčić MK, Stanković D, Stambolić I, Manojlović DD, Jovanović VM, Sovilj SP. Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study. Electrochimica Acta. 2013;89:680-687
Petković, B. B., Milčić, M. K., Stanković, D., Stambolić, I., Manojlović, D. D., Jovanović, V. M.,& Sovilj, S. P. (2013). Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study. Electrochimica ActaPergamon-Elsevier Science Ltd, Oxford., 89, 680-687. https://doi.org/10.1016/j.electacta.2012.11.100
Petković Branka B., Milčić Miloš K., Stanković Dalibor, Stambolić I., Manojlović Dragan D., Jovanović V. M., Sovilj Sofija P., "Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study" 89 (2013):680-687, https://doi.org/10.1016/j.electacta.2012.11.100 .