TY  - JOUR
AU  - Dimitrijević, Teodora
AU  - Novaković, Irena T.
AU  - Radanović, Dušanka D.
AU  - Novaković, Slađana B.
AU  - Rodić, Marko V.
AU  - Anđelković, Katarina
AU  - Šumar-Ristović, Maja
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8908
AB  - In this article, synthesis, spectral and X-ray structure characterization, antimicrobial activity and Brine shrimp test of two new Cu(II) complexes with a salicylaldehyde derivative have been reported. Complexes [Cu(L)(bipy)]BF4·0.5H2O and [Cu2(L)2(phen)2](BF4)2 were obtained in the reaction of Cu(BF4)2·6H2O, deprotonated 4-(diethylamino)−2-hydroxybenzaldehyde ligand (L) and α-diimine (2,2’-bipyridine or 1,10-phenanthroline). The complex with bipyridine is mononuclear, containing one L and one bipyridine ligand in a distorted square-planar cation with a BF4 − anion and lattice water molecule, whereas the complex with phenanthroline is a dinuclear centrosymmetric dimeric cation, containing two L ligands along with two phenanthroline ligands and BF4 − anions. The coordination geometry of each Cu(II) ion can be described as an elongated square pyramid. MS-ESI spectroscopy indicated that [Cu2(L)2(phen)2](BF4)2 is mononuclear in DMSO solution. In vitro antibacterial and antifungal activity was tested against four Gram-positive, four Gram-negative bacteria and three fungal strains. Complexes showed significantly stronger antibacterial activities than parent ligands. The mononuclear phenanthroline complex in solution showed very good antimicrobial activity, which is comparable to the activity of the standard antibiotic amikacin against all tested bacterial strains. The same complex has better antifungal activity than fluconazole, which was used as a standard. Results of the brine shrimp test indicate that both complexes have good toxicity against Artemia nauplii.
T2  - Journal of Coordination Chemistry
T1  - Synthesis, spectral and structural characterization and biological activity of Cu(II) complexes with 4-(diethylamino)salicylaldehyde and α-diimines
VL  - 73
IS  - 4
SP  - 702
EP  - 716
DO  - 10.1080/00958972.2020.1740212
ER  - 

@article{
author = "Dimitrijević, Teodora and Novaković, Irena T. and Radanović, Dušanka D. and Novaković, Slađana B. and Rodić, Marko V. and Anđelković, Katarina and Šumar-Ristović, Maja",
year = "2020",
abstract = "In this article, synthesis, spectral and X-ray structure characterization, antimicrobial activity and Brine shrimp test of two new Cu(II) complexes with a salicylaldehyde derivative have been reported. Complexes [Cu(L)(bipy)]BF4·0.5H2O and [Cu2(L)2(phen)2](BF4)2 were obtained in the reaction of Cu(BF4)2·6H2O, deprotonated 4-(diethylamino)−2-hydroxybenzaldehyde ligand (L) and α-diimine (2,2’-bipyridine or 1,10-phenanthroline). The complex with bipyridine is mononuclear, containing one L and one bipyridine ligand in a distorted square-planar cation with a BF4 − anion and lattice water molecule, whereas the complex with phenanthroline is a dinuclear centrosymmetric dimeric cation, containing two L ligands along with two phenanthroline ligands and BF4 − anions. The coordination geometry of each Cu(II) ion can be described as an elongated square pyramid. MS-ESI spectroscopy indicated that [Cu2(L)2(phen)2](BF4)2 is mononuclear in DMSO solution. In vitro antibacterial and antifungal activity was tested against four Gram-positive, four Gram-negative bacteria and three fungal strains. Complexes showed significantly stronger antibacterial activities than parent ligands. The mononuclear phenanthroline complex in solution showed very good antimicrobial activity, which is comparable to the activity of the standard antibiotic amikacin against all tested bacterial strains. The same complex has better antifungal activity than fluconazole, which was used as a standard. Results of the brine shrimp test indicate that both complexes have good toxicity against Artemia nauplii.",
journal = "Journal of Coordination Chemistry",
title = "Synthesis, spectral and structural characterization and biological activity of Cu(II) complexes with 4-(diethylamino)salicylaldehyde and α-diimines",
volume = "73",
number = "4",
pages = "702-716",
doi = "10.1080/00958972.2020.1740212"
}

Dimitrijević, T., Novaković, I. T., Radanović, D. D., Novaković, S. B., Rodić, M. V., Anđelković, K.,& Šumar-Ristović, M.. (2020). Synthesis, spectral and structural characterization and biological activity of Cu(II) complexes with 4-(diethylamino)salicylaldehyde and α-diimines. in Journal of Coordination Chemistry, 73(4), 702-716.
https://doi.org/10.1080/00958972.2020.1740212

Dimitrijević T, Novaković IT, Radanović DD, Novaković SB, Rodić MV, Anđelković K, Šumar-Ristović M. Synthesis, spectral and structural characterization and biological activity of Cu(II) complexes with 4-(diethylamino)salicylaldehyde and α-diimines. in Journal of Coordination Chemistry. 2020;73(4):702-716.
doi:10.1080/00958972.2020.1740212 .

Dimitrijević, Teodora, Novaković, Irena T., Radanović, Dušanka D., Novaković, Slađana B., Rodić, Marko V., Anđelković, Katarina, Šumar-Ristović, Maja, "Synthesis, spectral and structural characterization and biological activity of Cu(II) complexes with 4-(diethylamino)salicylaldehyde and α-diimines" in Journal of Coordination Chemistry, 73, no. 4 (2020):702-716,
https://doi.org/10.1080/00958972.2020.1740212 . .

TY  - JOUR
AU  - Darmanović, Darinka
AU  - Shcherbakov, Igor N.
AU  - Duboc, Carole
AU  - Spasojević, Vojislav
AU  - Hanžel, Darko
AU  - Anđelković, Katarina
AU  - Radanović, Dušanka D.
AU  - Turel, Iztok
AU  - Milenković, Milica R.
AU  - Gruden, Maja
AU  - Čobeljić, Božidar
AU  - Zlatar, Matija
PY  - 2019
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/3855
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8751
AB  - Magnetic anisotropy in pentagonal bipyramidal complexes of Co(II) (1 and 2), Fe(III) (3 and 4), and Ni(II) (5) with a 2,2′-[2,6-pyridinediylbis(ethylidyne-1-hydrazinyl-2-ylidene)]bis[N,N,N-trimethyl-2-oxoethanaminium] equatorial ligand and isothiocyanato axial ligands has been investigated by magnetic susceptibility measurements, powder X-band electron paramagnetic resonance (EPR) spectroscopy, Mössbauer spectroscopy, ab initio, and ligand-field density functional theory (LFDFT) calculations. The studied complexes display three distinct types of magnetic anisotropy. Co(II) complexes (1 and 2) show an easy plane anisotropy with large and positive D values and negligible rhombicity. The Ni(II) complex (5) has uniaxial magnetic anisotropy with a negative D value. Fe(III) complexes (3 and 4) have small zero-field splitting (ZFS) parameters. Theoretical modeling is used to rationalize the magnetic anisotropy in these systems and to identify the most important excited states that are responsible for the zero-field splitting. These excitations are a consequence of the electronic structure of the central metal ion in ideal pentagonal bipyramidal coordination.
T2  - The Journal of Physical Chemistry C
T1  - Combined Experimental and Theoretical Investigation of the Origin of Magnetic Anisotropy in Pentagonal Bipyramidal Isothiocyanato Co(II), Ni(II), and Fe(III) Complexes with Quaternary-Ammonium-Functionalized 2,6-Diacetylpyridine Bisacylhydrazone
VL  - 123
IS  - 51
SP  - 31142
EP  - 31155
DO  - 10.1021/acs.jpcc.9b08066
ER  - 

@article{
author = "Darmanović, Darinka and Shcherbakov, Igor N. and Duboc, Carole and Spasojević, Vojislav and Hanžel, Darko and Anđelković, Katarina and Radanović, Dušanka D. and Turel, Iztok and Milenković, Milica R. and Gruden, Maja and Čobeljić, Božidar and Zlatar, Matija",
year = "2019",
abstract = "Magnetic anisotropy in pentagonal bipyramidal complexes of Co(II) (1 and 2), Fe(III) (3 and 4), and Ni(II) (5) with a 2,2′-[2,6-pyridinediylbis(ethylidyne-1-hydrazinyl-2-ylidene)]bis[N,N,N-trimethyl-2-oxoethanaminium] equatorial ligand and isothiocyanato axial ligands has been investigated by magnetic susceptibility measurements, powder X-band electron paramagnetic resonance (EPR) spectroscopy, Mössbauer spectroscopy, ab initio, and ligand-field density functional theory (LFDFT) calculations. The studied complexes display three distinct types of magnetic anisotropy. Co(II) complexes (1 and 2) show an easy plane anisotropy with large and positive D values and negligible rhombicity. The Ni(II) complex (5) has uniaxial magnetic anisotropy with a negative D value. Fe(III) complexes (3 and 4) have small zero-field splitting (ZFS) parameters. Theoretical modeling is used to rationalize the magnetic anisotropy in these systems and to identify the most important excited states that are responsible for the zero-field splitting. These excitations are a consequence of the electronic structure of the central metal ion in ideal pentagonal bipyramidal coordination.",
journal = "The Journal of Physical Chemistry C",
title = "Combined Experimental and Theoretical Investigation of the Origin of Magnetic Anisotropy in Pentagonal Bipyramidal Isothiocyanato Co(II), Ni(II), and Fe(III) Complexes with Quaternary-Ammonium-Functionalized 2,6-Diacetylpyridine Bisacylhydrazone",
volume = "123",
number = "51",
pages = "31142-31155",
doi = "10.1021/acs.jpcc.9b08066"
}

Darmanović, D., Shcherbakov, I. N., Duboc, C., Spasojević, V., Hanžel, D., Anđelković, K., Radanović, D. D., Turel, I., Milenković, M. R., Gruden, M., Čobeljić, B.,& Zlatar, M.. (2019). Combined Experimental and Theoretical Investigation of the Origin of Magnetic Anisotropy in Pentagonal Bipyramidal Isothiocyanato Co(II), Ni(II), and Fe(III) Complexes with Quaternary-Ammonium-Functionalized 2,6-Diacetylpyridine Bisacylhydrazone. in The Journal of Physical Chemistry C, 123(51), 31142-31155.
https://doi.org/10.1021/acs.jpcc.9b08066

Darmanović D, Shcherbakov IN, Duboc C, Spasojević V, Hanžel D, Anđelković K, Radanović DD, Turel I, Milenković MR, Gruden M, Čobeljić B, Zlatar M. Combined Experimental and Theoretical Investigation of the Origin of Magnetic Anisotropy in Pentagonal Bipyramidal Isothiocyanato Co(II), Ni(II), and Fe(III) Complexes with Quaternary-Ammonium-Functionalized 2,6-Diacetylpyridine Bisacylhydrazone. in The Journal of Physical Chemistry C. 2019;123(51):31142-31155.
doi:10.1021/acs.jpcc.9b08066 .

Darmanović, Darinka, Shcherbakov, Igor N., Duboc, Carole, Spasojević, Vojislav, Hanžel, Darko, Anđelković, Katarina, Radanović, Dušanka D., Turel, Iztok, Milenković, Milica R., Gruden, Maja, Čobeljić, Božidar, Zlatar, Matija, "Combined Experimental and Theoretical Investigation of the Origin of Magnetic Anisotropy in Pentagonal Bipyramidal Isothiocyanato Co(II), Ni(II), and Fe(III) Complexes with Quaternary-Ammonium-Functionalized 2,6-Diacetylpyridine Bisacylhydrazone" in The Journal of Physical Chemistry C, 123, no. 51 (2019):31142-31155,
https://doi.org/10.1021/acs.jpcc.9b08066 . .