TY  - JOUR
AU  - Mrkalić, Emina
AU  - Šmit, Biljana
AU  - Matić, Sanja
AU  - Jelić, Ratomir
AU  - Ćendić Serafinović, Marina
AU  - Gligorijević, Nevenka
AU  - Čavić, Milena
AU  - Aranđelović, Sandra
AU  - Grgurić-Šipka, Sanja
AU  - Soldatović, Tanja
PY  - 2023
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5880
AB  - The four novel complexes [{cis-PtCl(NH3)2(μ-4,4′ -bipyridyl)ZnCl(terpy)}](ClO4)2 (C1), [{trans-PtCl(NH3)2(μ-
4,4′ -bipyridyl)ZnCl(terpy)}](ClO4)2 (C2), [{cis-PtCl(NH3)2(μ-pyrazine)ZnCl(terpy)}](ClO4)2 (C3) and [{trans-
PtCl(NH3)2(μ-pyrazine)ZnCl(terpy)}](ClO4)2 (C4) (where terpy = 2,2′ :6′ ,2′ ′ -terpyridine) were synthesized and
characterized. Acid–base titrations and concentration dependent kinetic measurements for the reactions with
biologically relevant ligands such as guanosine-5′ -monophosphate (5′ -GMP), inosine-5′ -monophosphate (5′ -IMP)
and glutathione (GSH), were studied at pH 7.4 and 37 ◦C. The binding of the heterometallic bridged cis- or trans-
Pt(II)-Zn(II) complexes to calf thymus DNA (CT-DNA) was studied by UV absorption and fluorescence emission
spectroscopy and molecular docking. The results indicated that the complexes bind strongly to DNA, through
groove binding, hydrogen bonds, and hydrophobic or electrostatic interaction. The possible in vitro DNA protective
effect of cis- and trans-Pt-L-Zn complexes has shown that C3 had significant dose-dependent DNA-protective
effect and the same ability to inhibit peroxyl as well as hydroxyl radicals. Antiproliferative effect of the
complexes, mRNA expression of apoptosis and repair-related genes after treatment in cancer cells indicated that
newly synthesized C2 exhibited highly selective cytotoxicity toward colon carcinoma HCT116 cells. Only
treatment with trans analog C2 induced effect similar to the typical DNA damaging agent such as cisplatin,
characterized by p53 mediated cell response, cell cycle arrest and certain induction of apoptotic related genes.
Both cis- and trans-isomers C1 and C2 showed potency to elicit expression of PARP1 mRNA and in vitro DNA
binding.
PB  - Elsevier
T2  - J. Inorg. Biochem.
T1  - Exploring heterometallic bridged Pt(II)-Zn(II) complexes as potential antitumor agent
VL  - 240
DO  - https://doi.org/10.1016/j.jinorgbio.2022.112100
ER  - 

@article{
author = "Mrkalić, Emina and Šmit, Biljana and Matić, Sanja and Jelić, Ratomir and Ćendić Serafinović, Marina and Gligorijević, Nevenka and Čavić, Milena and Aranđelović, Sandra and Grgurić-Šipka, Sanja and Soldatović, Tanja",
year = "2023",
abstract = "The four novel complexes [{cis-PtCl(NH3)2(μ-4,4′ -bipyridyl)ZnCl(terpy)}](ClO4)2 (C1), [{trans-PtCl(NH3)2(μ-
4,4′ -bipyridyl)ZnCl(terpy)}](ClO4)2 (C2), [{cis-PtCl(NH3)2(μ-pyrazine)ZnCl(terpy)}](ClO4)2 (C3) and [{trans-
PtCl(NH3)2(μ-pyrazine)ZnCl(terpy)}](ClO4)2 (C4) (where terpy = 2,2′ :6′ ,2′ ′ -terpyridine) were synthesized and
characterized. Acid–base titrations and concentration dependent kinetic measurements for the reactions with
biologically relevant ligands such as guanosine-5′ -monophosphate (5′ -GMP), inosine-5′ -monophosphate (5′ -IMP)
and glutathione (GSH), were studied at pH 7.4 and 37 ◦C. The binding of the heterometallic bridged cis- or trans-
Pt(II)-Zn(II) complexes to calf thymus DNA (CT-DNA) was studied by UV absorption and fluorescence emission
spectroscopy and molecular docking. The results indicated that the complexes bind strongly to DNA, through
groove binding, hydrogen bonds, and hydrophobic or electrostatic interaction. The possible in vitro DNA protective
effect of cis- and trans-Pt-L-Zn complexes has shown that C3 had significant dose-dependent DNA-protective
effect and the same ability to inhibit peroxyl as well as hydroxyl radicals. Antiproliferative effect of the
complexes, mRNA expression of apoptosis and repair-related genes after treatment in cancer cells indicated that
newly synthesized C2 exhibited highly selective cytotoxicity toward colon carcinoma HCT116 cells. Only
treatment with trans analog C2 induced effect similar to the typical DNA damaging agent such as cisplatin,
characterized by p53 mediated cell response, cell cycle arrest and certain induction of apoptotic related genes.
Both cis- and trans-isomers C1 and C2 showed potency to elicit expression of PARP1 mRNA and in vitro DNA
binding.",
publisher = "Elsevier",
journal = "J. Inorg. Biochem.",
title = "Exploring heterometallic bridged Pt(II)-Zn(II) complexes as potential antitumor agent",
volume = "240",
doi = "https://doi.org/10.1016/j.jinorgbio.2022.112100"
}

Mrkalić, E., Šmit, B., Matić, S., Jelić, R., Ćendić Serafinović, M., Gligorijević, N., Čavić, M., Aranđelović, S., Grgurić-Šipka, S.,& Soldatović, T.. (2023). Exploring heterometallic bridged Pt(II)-Zn(II) complexes as potential antitumor agent. in J. Inorg. Biochem.
Elsevier., 240.
https://doi.org/https://doi.org/10.1016/j.jinorgbio.2022.112100

Mrkalić E, Šmit B, Matić S, Jelić R, Ćendić Serafinović M, Gligorijević N, Čavić M, Aranđelović S, Grgurić-Šipka S, Soldatović T. Exploring heterometallic bridged Pt(II)-Zn(II) complexes as potential antitumor agent. in J. Inorg. Biochem.. 2023;240.
doi:https://doi.org/10.1016/j.jinorgbio.2022.112100 .

Mrkalić, Emina, Šmit, Biljana, Matić, Sanja, Jelić, Ratomir, Ćendić Serafinović, Marina, Gligorijević, Nevenka, Čavić, Milena, Aranđelović, Sandra, Grgurić-Šipka, Sanja, Soldatović, Tanja, "Exploring heterometallic bridged Pt(II)-Zn(II) complexes as potential antitumor agent" in J. Inorg. Biochem., 240 (2023),
https://doi.org/https://doi.org/10.1016/j.jinorgbio.2022.112100 . .

TY  - DATA
AU  - Cakić, Nevenka
AU  - Verbić, Tatjana
AU  - Jelić, Ratomir
AU  - Platas-Iglesias, Carlos
AU  - Angelovski, Goran
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3623
PB  - Royal Soc Chemistry, Cambridge
T2  - Dalton Transactions
T1  - Supplementary data for the article: Cakić, N.; Verbić, T. Ž.; Jelić, R. M.; Platas-Iglesias, C.; Angelovski, G. Synthesis and Characterisation of Bismacrocyclic DO3A-Amide Derivatives - An Approach towards Metal-Responsive PARACEST Agents. Dalton Transactions 2016, 45 (15), 6555–6565. https://doi.org/10.1039/c5dt04625d
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3623
ER  - 

@misc{
author = "Cakić, Nevenka and Verbić, Tatjana and Jelić, Ratomir and Platas-Iglesias, Carlos and Angelovski, Goran",
year = "2016",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Dalton Transactions",
title = "Supplementary data for the article: Cakić, N.; Verbić, T. Ž.; Jelić, R. M.; Platas-Iglesias, C.; Angelovski, G. Synthesis and Characterisation of Bismacrocyclic DO3A-Amide Derivatives - An Approach towards Metal-Responsive PARACEST Agents. Dalton Transactions 2016, 45 (15), 6555–6565. https://doi.org/10.1039/c5dt04625d",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3623"
}

Cakić, N., Verbić, T., Jelić, R., Platas-Iglesias, C.,& Angelovski, G.. (2016). Supplementary data for the article: Cakić, N.; Verbić, T. Ž.; Jelić, R. M.; Platas-Iglesias, C.; Angelovski, G. Synthesis and Characterisation of Bismacrocyclic DO3A-Amide Derivatives - An Approach towards Metal-Responsive PARACEST Agents. Dalton Transactions 2016, 45 (15), 6555–6565. https://doi.org/10.1039/c5dt04625d. in Dalton Transactions
Royal Soc Chemistry, Cambridge..
https://hdl.handle.net/21.15107/rcub_cherry_3623

Cakić N, Verbić T, Jelić R, Platas-Iglesias C, Angelovski G. Supplementary data for the article: Cakić, N.; Verbić, T. Ž.; Jelić, R. M.; Platas-Iglesias, C.; Angelovski, G. Synthesis and Characterisation of Bismacrocyclic DO3A-Amide Derivatives - An Approach towards Metal-Responsive PARACEST Agents. Dalton Transactions 2016, 45 (15), 6555–6565. https://doi.org/10.1039/c5dt04625d. in Dalton Transactions. 2016;.
https://hdl.handle.net/21.15107/rcub_cherry_3623 .

Cakić, Nevenka, Verbić, Tatjana, Jelić, Ratomir, Platas-Iglesias, Carlos, Angelovski, Goran, "Supplementary data for the article: Cakić, N.; Verbić, T. Ž.; Jelić, R. M.; Platas-Iglesias, C.; Angelovski, G. Synthesis and Characterisation of Bismacrocyclic DO3A-Amide Derivatives - An Approach towards Metal-Responsive PARACEST Agents. Dalton Transactions 2016, 45 (15), 6555–6565. https://doi.org/10.1039/c5dt04625d" in Dalton Transactions (2016),
https://hdl.handle.net/21.15107/rcub_cherry_3623 .

TY  - JOUR
AU  - Cakić, Nevenka
AU  - Verbić, Tatjana
AU  - Jelić, Ratomir
AU  - Platas-Iglesias, Carlos
AU  - Angelovski, Goran
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1911
AB  - Three new bismacrocyclic Ln(3+) chelates consisting of triamide derivatives of cyclen with glycine, methyl and tert-butyl substituents (L1-3, respectively) linked to an acyclic EGTA-derived calcium chelator were synthesised as potential MRI contrast agents (EGTA -ethylene glycol-bis(2-aminoethylether)-N, N, N', N'-tetraacetic acid). Eu3+ and Yb3+ complexes of L1-3 were investigated as chemical exchange saturation transfer (CEST) agents. Moderate to minor CEST effects were observed for Eu2L1, Eu2L2 and Yb2L2 complexes in the absence of Ca2+, with negligible changes upon addition of this metal ion. Luminescence steady-state emission and lifetime experiments did not reveal any changes in the coordination environment of the complexes, while the number of inner-sphere water molecules remained constant in the absence and presence of Ca2+. The protonation constants of Eu2L1 and Eu2L2 and stability constants of their complexes with Ca2+, Mg2+ and Zn2+ were determined by means of potentiometric titrations. The results show that the charge of the complex dramatically affects the protonation constants of the EGTA-binding unit. The stability constants of the complexes formed with Ca2+, Mg2+ and Zn2+ are several orders of magnitude lower than those of EGTA. These findings indicate that the nature of Ln(3+) chelates and their charge are the main reasons for the observed results and weaker response of these EGTA-derived triamide derivatives compared to their tricarboxylate analogues.
PB  - Royal Soc Chemistry, Cambridge
T2  - Dalton Transactions
T1  - Synthesis and characterisation of bismacrocyclic DO3A-amide derivatives - an approach towards metal-responsive PARACEST agents
VL  - 45
IS  - 15
SP  - 6555
EP  - 6565
DO  - 10.1039/c5dt04625d
ER  - 

@article{
author = "Cakić, Nevenka and Verbić, Tatjana and Jelić, Ratomir and Platas-Iglesias, Carlos and Angelovski, Goran",
year = "2016",
abstract = "Three new bismacrocyclic Ln(3+) chelates consisting of triamide derivatives of cyclen with glycine, methyl and tert-butyl substituents (L1-3, respectively) linked to an acyclic EGTA-derived calcium chelator were synthesised as potential MRI contrast agents (EGTA -ethylene glycol-bis(2-aminoethylether)-N, N, N', N'-tetraacetic acid). Eu3+ and Yb3+ complexes of L1-3 were investigated as chemical exchange saturation transfer (CEST) agents. Moderate to minor CEST effects were observed for Eu2L1, Eu2L2 and Yb2L2 complexes in the absence of Ca2+, with negligible changes upon addition of this metal ion. Luminescence steady-state emission and lifetime experiments did not reveal any changes in the coordination environment of the complexes, while the number of inner-sphere water molecules remained constant in the absence and presence of Ca2+. The protonation constants of Eu2L1 and Eu2L2 and stability constants of their complexes with Ca2+, Mg2+ and Zn2+ were determined by means of potentiometric titrations. The results show that the charge of the complex dramatically affects the protonation constants of the EGTA-binding unit. The stability constants of the complexes formed with Ca2+, Mg2+ and Zn2+ are several orders of magnitude lower than those of EGTA. These findings indicate that the nature of Ln(3+) chelates and their charge are the main reasons for the observed results and weaker response of these EGTA-derived triamide derivatives compared to their tricarboxylate analogues.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Dalton Transactions",
title = "Synthesis and characterisation of bismacrocyclic DO3A-amide derivatives - an approach towards metal-responsive PARACEST agents",
volume = "45",
number = "15",
pages = "6555-6565",
doi = "10.1039/c5dt04625d"
}

Cakić, N., Verbić, T., Jelić, R., Platas-Iglesias, C.,& Angelovski, G.. (2016). Synthesis and characterisation of bismacrocyclic DO3A-amide derivatives - an approach towards metal-responsive PARACEST agents. in Dalton Transactions
Royal Soc Chemistry, Cambridge., 45(15), 6555-6565.
https://doi.org/10.1039/c5dt04625d

Cakić N, Verbić T, Jelić R, Platas-Iglesias C, Angelovski G. Synthesis and characterisation of bismacrocyclic DO3A-amide derivatives - an approach towards metal-responsive PARACEST agents. in Dalton Transactions. 2016;45(15):6555-6565.
doi:10.1039/c5dt04625d .

Cakić, Nevenka, Verbić, Tatjana, Jelić, Ratomir, Platas-Iglesias, Carlos, Angelovski, Goran, "Synthesis and characterisation of bismacrocyclic DO3A-amide derivatives - an approach towards metal-responsive PARACEST agents" in Dalton Transactions, 45, no. 15 (2016):6555-6565,
https://doi.org/10.1039/c5dt04625d . .

TY  - DATA
AU  - Marković, Violeta
AU  - Erić, Slavica
AU  - Stanojković, Tatjana
AU  - Gligorijević, Nevenka
AU  - Aranđelović, Sandra
AU  - Todorović, Nina
AU  - Trifunović, Snežana S.
AU  - Manojlović, Nedeljko
AU  - Jelić, Ratomir
AU  - Joksović, Milan D.
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3573
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Bioorganic and Medicinal Chemistry Letters
T1  - Supplementary data for article: Marković, V.; Erić, S.; Stanojković, T.; Gligorijević, N.; Aranđelović, S.; Todorović, N.; Trifunović, S. S.; Manojlović, N.; Jelic, R.; Joksović, M. D. Antiproliferative Activity and QSAR Studies of a Series of New 4-Aminomethylidene Derivatives of Some Pyrazol-5-Ones. Bioorganic and Medicinal Chemistry Letters 2011, 21 (15), 4416–4421. https://doi.org/10.1016/j.bmcl.2011.06.025
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3573
ER  - 

@misc{
author = "Marković, Violeta and Erić, Slavica and Stanojković, Tatjana and Gligorijević, Nevenka and Aranđelović, Sandra and Todorović, Nina and Trifunović, Snežana S. and Manojlović, Nedeljko and Jelić, Ratomir and Joksović, Milan D.",
year = "2011",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Bioorganic and Medicinal Chemistry Letters",
title = "Supplementary data for article: Marković, V.; Erić, S.; Stanojković, T.; Gligorijević, N.; Aranđelović, S.; Todorović, N.; Trifunović, S. S.; Manojlović, N.; Jelic, R.; Joksović, M. D. Antiproliferative Activity and QSAR Studies of a Series of New 4-Aminomethylidene Derivatives of Some Pyrazol-5-Ones. Bioorganic and Medicinal Chemistry Letters 2011, 21 (15), 4416–4421. https://doi.org/10.1016/j.bmcl.2011.06.025",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3573"
}

Marković, V., Erić, S., Stanojković, T., Gligorijević, N., Aranđelović, S., Todorović, N., Trifunović, S. S., Manojlović, N., Jelić, R.,& Joksović, M. D.. (2011). Supplementary data for article: Marković, V.; Erić, S.; Stanojković, T.; Gligorijević, N.; Aranđelović, S.; Todorović, N.; Trifunović, S. S.; Manojlović, N.; Jelic, R.; Joksović, M. D. Antiproliferative Activity and QSAR Studies of a Series of New 4-Aminomethylidene Derivatives of Some Pyrazol-5-Ones. Bioorganic and Medicinal Chemistry Letters 2011, 21 (15), 4416–4421. https://doi.org/10.1016/j.bmcl.2011.06.025. in Bioorganic and Medicinal Chemistry Letters
Pergamon-Elsevier Science Ltd, Oxford..
https://hdl.handle.net/21.15107/rcub_cherry_3573

Marković V, Erić S, Stanojković T, Gligorijević N, Aranđelović S, Todorović N, Trifunović SS, Manojlović N, Jelić R, Joksović MD. Supplementary data for article: Marković, V.; Erić, S.; Stanojković, T.; Gligorijević, N.; Aranđelović, S.; Todorović, N.; Trifunović, S. S.; Manojlović, N.; Jelic, R.; Joksović, M. D. Antiproliferative Activity and QSAR Studies of a Series of New 4-Aminomethylidene Derivatives of Some Pyrazol-5-Ones. Bioorganic and Medicinal Chemistry Letters 2011, 21 (15), 4416–4421. https://doi.org/10.1016/j.bmcl.2011.06.025. in Bioorganic and Medicinal Chemistry Letters. 2011;.
https://hdl.handle.net/21.15107/rcub_cherry_3573 .

Marković, Violeta, Erić, Slavica, Stanojković, Tatjana, Gligorijević, Nevenka, Aranđelović, Sandra, Todorović, Nina, Trifunović, Snežana S., Manojlović, Nedeljko, Jelić, Ratomir, Joksović, Milan D., "Supplementary data for article: Marković, V.; Erić, S.; Stanojković, T.; Gligorijević, N.; Aranđelović, S.; Todorović, N.; Trifunović, S. S.; Manojlović, N.; Jelic, R.; Joksović, M. D. Antiproliferative Activity and QSAR Studies of a Series of New 4-Aminomethylidene Derivatives of Some Pyrazol-5-Ones. Bioorganic and Medicinal Chemistry Letters 2011, 21 (15), 4416–4421. https://doi.org/10.1016/j.bmcl.2011.06.025" in Bioorganic and Medicinal Chemistry Letters (2011),
https://hdl.handle.net/21.15107/rcub_cherry_3573 .

TY  - JOUR
AU  - Marković, Violeta
AU  - Erić, Slavica
AU  - Stanojković, Tatjana
AU  - Gligorijević, Nevenka
AU  - Aranđelović, Sandra
AU  - Todorović, Nina
AU  - Trifunović, Snežana S.
AU  - Manojlović, Nedeljko
AU  - Jelić, Ratomir
AU  - Joksović, Milan D.
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1175
AB  - Twenty five 4-aminomethylidene derivatives obtained from 3-phenyl-2-pyrazolin-5-one and 1,3-diphenyl-2-pyrazolin-5-one were synthesized and tested for their antiproliferative activity against human breast cancer MDA-MB-361 and MDA-MB-453 cell lines. The compounds derived from 1,3-diphenyl-2-pyrazolin-5-one exhibited the most remarkable activity in the treatment of both cell lines. In vitro antiproliferative activities were accompanied by an important apoptotic fraction of both cell lines; also, compounds inhibited key endothelial cell functions implicated in invasion and angiogenesis. QSAR methods were performed in order to analyze the influence of structural features of the compounds investigated on the antiproliferative potential on MDA-MB-361 and MDA-MB-453 cancer cells. One-parameter heuristic analysis was performed and different whole molecule and fragmental descriptors were considered for rationalization of mechanism of interaction of these compounds with active place of hypothetical target included in tumorigenesis.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Bioorganic and Medicinal Chemistry Letters
T1  - Antiproliferative activity and QSAR studies of a series of new 4-aminomethylidene derivatives of some pyrazol-5-ones
VL  - 21
IS  - 15
SP  - 4416
EP  - 4421
DO  - 10.1016/j.bmcl.2011.06.025
ER  - 

@article{
author = "Marković, Violeta and Erić, Slavica and Stanojković, Tatjana and Gligorijević, Nevenka and Aranđelović, Sandra and Todorović, Nina and Trifunović, Snežana S. and Manojlović, Nedeljko and Jelić, Ratomir and Joksović, Milan D.",
year = "2011",
abstract = "Twenty five 4-aminomethylidene derivatives obtained from 3-phenyl-2-pyrazolin-5-one and 1,3-diphenyl-2-pyrazolin-5-one were synthesized and tested for their antiproliferative activity against human breast cancer MDA-MB-361 and MDA-MB-453 cell lines. The compounds derived from 1,3-diphenyl-2-pyrazolin-5-one exhibited the most remarkable activity in the treatment of both cell lines. In vitro antiproliferative activities were accompanied by an important apoptotic fraction of both cell lines; also, compounds inhibited key endothelial cell functions implicated in invasion and angiogenesis. QSAR methods were performed in order to analyze the influence of structural features of the compounds investigated on the antiproliferative potential on MDA-MB-361 and MDA-MB-453 cancer cells. One-parameter heuristic analysis was performed and different whole molecule and fragmental descriptors were considered for rationalization of mechanism of interaction of these compounds with active place of hypothetical target included in tumorigenesis.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Bioorganic and Medicinal Chemistry Letters",
title = "Antiproliferative activity and QSAR studies of a series of new 4-aminomethylidene derivatives of some pyrazol-5-ones",
volume = "21",
number = "15",
pages = "4416-4421",
doi = "10.1016/j.bmcl.2011.06.025"
}

Marković, V., Erić, S., Stanojković, T., Gligorijević, N., Aranđelović, S., Todorović, N., Trifunović, S. S., Manojlović, N., Jelić, R.,& Joksović, M. D.. (2011). Antiproliferative activity and QSAR studies of a series of new 4-aminomethylidene derivatives of some pyrazol-5-ones. in Bioorganic and Medicinal Chemistry Letters
Pergamon-Elsevier Science Ltd, Oxford., 21(15), 4416-4421.
https://doi.org/10.1016/j.bmcl.2011.06.025

Marković V, Erić S, Stanojković T, Gligorijević N, Aranđelović S, Todorović N, Trifunović SS, Manojlović N, Jelić R, Joksović MD. Antiproliferative activity and QSAR studies of a series of new 4-aminomethylidene derivatives of some pyrazol-5-ones. in Bioorganic and Medicinal Chemistry Letters. 2011;21(15):4416-4421.
doi:10.1016/j.bmcl.2011.06.025 .

Marković, Violeta, Erić, Slavica, Stanojković, Tatjana, Gligorijević, Nevenka, Aranđelović, Sandra, Todorović, Nina, Trifunović, Snežana S., Manojlović, Nedeljko, Jelić, Ratomir, Joksović, Milan D., "Antiproliferative activity and QSAR studies of a series of new 4-aminomethylidene derivatives of some pyrazol-5-ones" in Bioorganic and Medicinal Chemistry Letters, 21, no. 15 (2011):4416-4421,
https://doi.org/10.1016/j.bmcl.2011.06.025 . .

TY  - JOUR
AU  - Drazici, Branka
AU  - Popovic, Gordana
AU  - Jelić, Ratomir
AU  - Sladić, Dušan
AU  - Mitić, Dragana
AU  - Anđelković, Katarina K.
AU  - Tešić, Živoslav Lj.
PY  - 2009
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/622
AB  - Acid-base equilibria of Zn(II) and Fe(III) complexes with N',N'(2)-bis-[(1E)-1-(2-pyridyl)ethylidene]ethanedihydrazide (ligand L1) and N',N'(2)-bis[(1E)-1-(2-pyridyl)ethylidene]propanedihydrazide (ligand L2), i.e., [Fe(L1)Cl(2)(H(2)O)], [Fe(L2)Cl(H(2)O)](2+), [Zn(L1)(H(2)O)(3)](+) and [Zn(L2)(H(2)O)(2)](2+), which expressed cytotoxic activity, were investigated in aqueous media. The equilibrium constants were determined potentiometrically at 25 degrees C at a constant ionic strength of 0.10 mol/dm(3) (Na(2)SO(4)). The results showed that at pH  lt  8 both the Fe(III) complexes studied here have three, while [Zn(L1)(H(2)O)(3)](+) and [Zn(L2)(H(2)O)(2)](2+) have one and two titratable protons, respectively. Based on the obtained values for the equilibrium constants, protonation schemes of the examined complexes are proposed.
AB  - U ovom radu su proučavane kiselinsko-bazne ravnoteže u vodenim rastvorima kompleksa Zn(II) i Fe(III) sa N',N'2-bis[(1E)-1-(2-piridil)etiliden]etandihidrazidom (ligand L1) i N',N'2-bis[(1E)-1-(2-piridil)etiliden]propandihidrazidom (ligand L2), tj. [Fe(L1)Cl2(H2O)], [Fe(L2)Cl(H2O)]2+, [Zn(L1)(H2O)3]+, [Zn(L2)(H2O)2]2+, koji pokazuju citotoksičnu aktivnost. Ravnotežne konstante su određivane potenciometrijski, na temperaturi 25°C i pri konstantnoj jonskoj jačini 0,10 mol/dm3 Na2SO4. Utvrđeno je da u intervalu pH  lt  8 ispitivani Fe(III) kompleksi imaju tri, [Zn(L1)(H2O)3]+ jedan, a [Zn(L2)(H2O)2]2+ dva protona koji mogu da se titrišu. Na osnovu dobijenih vrednosti za konstante, pretpostavljene su i odgovarajuće protonacione sheme.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Acid-base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid
T1  - Kiselinsko-bazne ravnoteže kompleksa Fe(III) i Zn(II) sa kondenzacionim derivatima 2-acetilpiridina i hidrazida oksalne, odnosno malonske kiseline
VL  - 74
IS  - 3
SP  - 269
EP  - 277
DO  - 10.2298/JSC0903269D
ER  - 

@article{
author = "Drazici, Branka and Popovic, Gordana and Jelić, Ratomir and Sladić, Dušan and Mitić, Dragana and Anđelković, Katarina K. and Tešić, Živoslav Lj.",
year = "2009",
abstract = "Acid-base equilibria of Zn(II) and Fe(III) complexes with N',N'(2)-bis-[(1E)-1-(2-pyridyl)ethylidene]ethanedihydrazide (ligand L1) and N',N'(2)-bis[(1E)-1-(2-pyridyl)ethylidene]propanedihydrazide (ligand L2), i.e., [Fe(L1)Cl(2)(H(2)O)], [Fe(L2)Cl(H(2)O)](2+), [Zn(L1)(H(2)O)(3)](+) and [Zn(L2)(H(2)O)(2)](2+), which expressed cytotoxic activity, were investigated in aqueous media. The equilibrium constants were determined potentiometrically at 25 degrees C at a constant ionic strength of 0.10 mol/dm(3) (Na(2)SO(4)). The results showed that at pH  lt  8 both the Fe(III) complexes studied here have three, while [Zn(L1)(H(2)O)(3)](+) and [Zn(L2)(H(2)O)(2)](2+) have one and two titratable protons, respectively. Based on the obtained values for the equilibrium constants, protonation schemes of the examined complexes are proposed., U ovom radu su proučavane kiselinsko-bazne ravnoteže u vodenim rastvorima kompleksa Zn(II) i Fe(III) sa N',N'2-bis[(1E)-1-(2-piridil)etiliden]etandihidrazidom (ligand L1) i N',N'2-bis[(1E)-1-(2-piridil)etiliden]propandihidrazidom (ligand L2), tj. [Fe(L1)Cl2(H2O)], [Fe(L2)Cl(H2O)]2+, [Zn(L1)(H2O)3]+, [Zn(L2)(H2O)2]2+, koji pokazuju citotoksičnu aktivnost. Ravnotežne konstante su određivane potenciometrijski, na temperaturi 25°C i pri konstantnoj jonskoj jačini 0,10 mol/dm3 Na2SO4. Utvrđeno je da u intervalu pH  lt  8 ispitivani Fe(III) kompleksi imaju tri, [Zn(L1)(H2O)3]+ jedan, a [Zn(L2)(H2O)2]2+ dva protona koji mogu da se titrišu. Na osnovu dobijenih vrednosti za konstante, pretpostavljene su i odgovarajuće protonacione sheme.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Acid-base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid, Kiselinsko-bazne ravnoteže kompleksa Fe(III) i Zn(II) sa kondenzacionim derivatima 2-acetilpiridina i hidrazida oksalne, odnosno malonske kiseline",
volume = "74",
number = "3",
pages = "269-277",
doi = "10.2298/JSC0903269D"
}

Drazici, B., Popovic, G., Jelić, R., Sladić, D., Mitić, D., Anđelković, K. K.,& Tešić, Ž. Lj.. (2009). Acid-base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 74(3), 269-277.
https://doi.org/10.2298/JSC0903269D

Drazici B, Popovic G, Jelić R, Sladić D, Mitić D, Anđelković KK, Tešić ŽL. Acid-base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid. in Journal of the Serbian Chemical Society. 2009;74(3):269-277.
doi:10.2298/JSC0903269D .

Drazici, Branka, Popovic, Gordana, Jelić, Ratomir, Sladić, Dušan, Mitić, Dragana, Anđelković, Katarina K., Tešić, Živoslav Lj., "Acid-base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid" in Journal of the Serbian Chemical Society, 74, no. 3 (2009):269-277,
https://doi.org/10.2298/JSC0903269D . .