Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study
Само за регистроване кориснике
2013
Аутори
Petković, Branka B.Milčić, Miloš
Stanković, Dalibor
Stambolic, I.
Manojlović, Dragan
Jovanović, Vladislava M.
Sovilj, Sofija P.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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+ >> Ni2+ > Co2+ > 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.
Кључне речи:
N,N ',N '',N '''-Tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane (tpmc) / Co2+ ions / Binding energy / Conductometry / Conformations / Ni2+ ions / Zn2+ ions / Cu2+ ionsИзвор:
Electrochimica Acta, 2013, 89, 680-687Издавач:
- Oxford : Pergamon-Elsevier Science Ltd
Финансирање / пројекти:
- Вишескално структурирање полимерних нанокомпозита и функционалних материјала применом различитих прекурсора (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45022)
DOI: 10.1016/j.electacta.2012.11.100
ISSN: 0013-4686
WoS: 000315558200088
Scopus: 2-s2.0-84871423728
Институција/група
IHTMTY - JOUR AU - Petković, Branka B. AU - Milčić, Miloš AU - Stanković, Dalibor AU - Stambolic, I. AU - Manojlović, Dragan AU - Jovanović, Vladislava M. AU - Sovilj, Sofija P. PY - 2013 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1288 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+ >> Ni2+ > Co2+ > 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 - Oxford : Pergamon-Elsevier Science Ltd 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 and Stanković, Dalibor and Stambolic, I. and Manojlović, Dragan and Jovanović, Vladislava M. and Sovilj, Sofija P.", year = "2013", 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+ >> Ni2+ > Co2+ > 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 = "Oxford : Pergamon-Elsevier Science Ltd", 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, B. B., Milčić, M., Stanković, D., Stambolic, I., Manojlović, 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. in Electrochimica Acta Oxford : Pergamon-Elsevier Science Ltd., 89, 680-687. https://doi.org/10.1016/j.electacta.2012.11.100
Petković BB, Milčić M, Stanković D, Stambolic I, Manojlović D, Jovanović VM, Sovilj SP. Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study. in Electrochimica Acta. 2013;89:680-687. doi:10.1016/j.electacta.2012.11.100 .
Petković, Branka B., Milčić, Miloš, Stanković, Dalibor, Stambolic, I., Manojlović, Dragan, Jovanović, Vladislava M., Sovilj, Sofija P., "Complexation ability of octaazamacrocyclic ligand toward Co2+, Ni2+, Cu2+ and Zn2+ metal cations: Experimental and theoretical study" in Electrochimica Acta, 89 (2013):680-687, https://doi.org/10.1016/j.electacta.2012.11.100 . .