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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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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 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 / Conformations
Source:
Electrochimica Acta, 2013, 89, 680-687
Publisher:
  • Pergamon-Elsevier Science Ltd, Oxford
Projects:
  • Multiscale structuring of polymer nanocomposites and functional materials based on different precursors (RS-45022)
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
[ Google Scholar ]
8
7
URI
http://cherry.chem.bg.ac.rs/handle/123456789/1607
Collections
  • Publikacije
  • Publikacije
Institution
Hemijski fakultet
TY  - 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 .

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