Jagličić, Zvonko

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  • Jagličić, Zvonko (3)
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Author's Bibliography

Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption

Marković, Bojana M.; Stefanović, Ivan S.; Nastasović, Aleksandra B.; Sandić, Zvjezdana P.; Suručić, Ljiljana T.; Dapčević, Aleksandra; Džunuzović, Jasna V.; Jagličić, Zvonko; Vuković, Zorica M.; Pavlović, Vladimir; Onjia, Antonije

(2021)

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Stefanović, Ivan S.
AU  - Nastasović, Aleksandra B.
AU  - Sandić, Zvjezdana P.
AU  - Suručić, Ljiljana T.
AU  - Dapčević, Aleksandra
AU  - Džunuzović, Jasna V.
AU  - Jagličić, Zvonko
AU  - Vuković, Zorica M.
AU  - Pavlović, Vladimir
AU  - Onjia, Antonije
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4950
AB  - A novel magnetic polymer/bentonite composite was prepared by suspension copolymerization of glycidyl methacrylate and ethylene glycol dimethacrylate in the presence of magnetic bentonite (MB-PGME) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD). The obtained samples were characterized in terms of structure as well as thermal, magnetic and morphological properties. The sorption of rhenium (Re) and tungsten (W) from aqueous solution onto MB-PGME-ED and MB-PGME-HD was investigated considering their contact time and different initial ion concentration, giving possibility for usage of these composites as commercial sorbents. The sorption system follows the pseudo-second order and intraparticle diffusion kinetic models. The results indicated a better fit with the Freundlich isotherm model.
T2  - Science of Sintering
T1  - Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption
EP  - 428
IS  - 4
SP  - 419
VL  - 53
DO  - 10.2298/SOS2104419M
ER  - 
@article{
author = "Marković, Bojana M. and Stefanović, Ivan S. and Nastasović, Aleksandra B. and Sandić, Zvjezdana P. and Suručić, Ljiljana T. and Dapčević, Aleksandra and Džunuzović, Jasna V. and Jagličić, Zvonko and Vuković, Zorica M. and Pavlović, Vladimir and Onjia, Antonije",
year = "2021",
abstract = "A novel magnetic polymer/bentonite composite was prepared by suspension copolymerization of glycidyl methacrylate and ethylene glycol dimethacrylate in the presence of magnetic bentonite (MB-PGME) and functionalized with ethylene diamine and hexamethylene diamine (MB-PGME-ED and MB-PGME-HD). The obtained samples were characterized in terms of structure as well as thermal, magnetic and morphological properties. The sorption of rhenium (Re) and tungsten (W) from aqueous solution onto MB-PGME-ED and MB-PGME-HD was investigated considering their contact time and different initial ion concentration, giving possibility for usage of these composites as commercial sorbents. The sorption system follows the pseudo-second order and intraparticle diffusion kinetic models. The results indicated a better fit with the Freundlich isotherm model.",
journal = "Science of Sintering",
title = "Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption",
pages = "428-419",
number = "4",
volume = "53",
doi = "10.2298/SOS2104419M"
}
Marković, B. M., Stefanović, I. S., Nastasović, A. B., Sandić, Z. P., Suručić, L. T., Dapčević, A., Džunuzović, J. V., Jagličić, Z., Vuković, Z. M., Pavlović, V.,& Onjia, A.. (2021). Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption. in Science of Sintering, 53(4), 419-428.
https://doi.org/10.2298/SOS2104419M
Marković BM, Stefanović IS, Nastasović AB, Sandić ZP, Suručić LT, Dapčević A, Džunuzović JV, Jagličić Z, Vuković ZM, Pavlović V, Onjia A. Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption. in Science of Sintering. 2021;53(4):419-428.
doi:10.2298/SOS2104419M .
Marković, Bojana M., Stefanović, Ivan S., Nastasović, Aleksandra B., Sandić, Zvjezdana P., Suručić, Ljiljana T., Dapčević, Aleksandra, Džunuzović, Jasna V., Jagličić, Zvonko, Vuković, Zorica M., Pavlović, Vladimir, Onjia, Antonije, "Novel Magnetic Polymer/bentonite Composite: Characterization and Application for Re(VII) and W(VI) Adsorption" in Science of Sintering, 53, no. 4 (2021):419-428,
https://doi.org/10.2298/SOS2104419M . .
2
2

SINTEZA, STRUKTURA I SVOJSTVA DVOFAZNOG Mn(II)/Zn(II) MATERIJALA

Radovanović, Lidija; Vulić, Predrag; Jagličić, Zvonko; Radovanović, Željko; Zeković, Ivana; Rogan, Jelena

(Beograd : Srpsko kristalografsko društvo = Serbian Crystallographic Society, 2018)

TY  - CONF
AU  - Radovanović, Lidija
AU  - Vulić, Predrag
AU  - Jagličić, Zvonko
AU  - Radovanović, Željko
AU  - Zeković, Ivana
AU  - Rogan, Jelena
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6699
AB  - Reakcijom izmene liganada sintetisan je dvofazni materijal I izgrađen od kompleksa
[Mn(dipya)(H2O)4](tpht) i {[Zn(dipya)(tpht)]·H2O}n(tpht = anjon tereftalne kiseline,
dipya = 2,2’-dipiridilamin) i okarakterisan je rendgenskom difrakcijom praha (XRPD),
elementarnom analizom i IC-spektroskopijom. Ritveldovom metodom utvrđena je
struktura obe faze na osnovu poznatih kristalnih struktura kompleksa
[Mn(dipya)(H2O)4](tpht) (monokliničan sistem, prostorna grupa P21/c, a = 7,62769(7),
b = 23,8578(2), c = 11,09364(20) Å, β = 102,2997(10) °) i {[Zn(dipya)(tpht)]·H2O}n
(monokliničan sistem, prostorna grupa P21/n, a = 9,83498(12), b = 14,40421(15),
c = 12,27228(16) Å, β = 95,7954(9) °), koje su određene rendgenskom strukturnom
analizom [1, 2]. Odnos faza [Mn(dipya)(H2O)4](tpht) i {[Zn(dipya)(tpht)]·H2O}n u I
iznosio je 31:69 mas. %. Rezultati utačnjavanja Ritveldovom metodom u dobroj su
saglasnosti, sa neznatnim odstupanjem od strukturnih parametara originalnih struktura:
Rp: 4,28, Rwp: 5,60, Rexp: 4,42, χ
2
: 1,60, RB: 2,39, Rf: 1,99 za Mn(II)-fazu i RB: 3,15,
Rf: 3,13 za Zn(II)-fazu. Mn(II)-fazu obrazuju diskretne kompleksne jedinke
[Mn(dipya)(H2O)4](tpht) u kojima tpht ima ulogu jona suprotnog naelektrisanja sa
deformisano-oktaedarskom geometrijom Mn(II)-jona. Zn(II)-faza izgrađena je od cikcak lanaca {[Zn(dipya)(tpht)]·H2O}n, sa dva kristalografski različita mostovna tphtliganda: bis-helatnim i bis-monodentatnim. Zn(II)-jon se nalazi u deformisanom
kvadratno-piramidalnom okruženju. Termičko ponašanje I ispitano je simultanom
TG/DSC-analizom u atmosferi vazduha i azota. XRPD identifikacija čvrstog ostatka
nakon analize u atmosferi vazduha pokazala je prisustvo dve faze: ZnO (ICDD PDF 36-
1451) i ZnMn2O4 (ICDD PDF 24-1123), čija je morfologija ispitana skenirajućom
elektronskom mikroskopijom (SEM). Merenjem magnetne susceptibilnosti na niskim
temperaturama utvrđene su magnetne interakcije u I i analizirana su fotoluminescentna
svojstva na sobnoj temperaturi.
AB  - A biphasic material I that is composed of complexes [Mn(dipya)(H2O)4](tpht) and
{[Zn(dipya)(tpht)]·H2O}n(tpht = anion of terephthalic acid, dipya = 2,2’-dipyridylamine)
has been synthesized by the ligand exchange reaction and characterized by X-ray powder
diffraction (XRPD), elemental analysis and IR spectroscopy. The structural
characterization of each phase was performed by Rietveld method according to the
known crystal structures of [Mn(dipya)(H2O)4](tpht) (monoclinic, space group P21/c,
a = 7,62769(7), b = 23,8578(2), c = 11,09364(20) Å, β = 102,2997(10) °) and
{[Zn(dipya)(tpht)]·H2O}n (monoclinic, space group P21/n, a = 9,83498(12),
b = 14,40421(15), c = 12,27228(16) Å, β = 95,7954(9) °) determined from single crystal
data [1, 2]. [Mn(dipya)(H2O)4](tpht) to {[Zn(dipya)(tpht)]·H2O}n phase-ratio in I was
31:69 wt. %. The Rietveld refinement results were in a good agreement with a minor
deviation of the final structural parameters from the original structures: Rp: 4.28,
Rwp: 5.60, Rexp: 4.42, χ
2
: 1.60, RB: 2.39, Rf: 1.99 for the Mn(II)-phase, and RB: 3.15,
Rf: 3.13 for the Zn(II)-phase. The Mn(II)-phase consists of discrete complex units
[Mn(dipya)(H2O)4](tpht) in which the tpht is counter anion and with distorted octahedral
geometry of Mn(II) ion. The Zn(II)-phase is comprised of zigzag chains of
{[Zn(dipya)(tpht)]·H2O}n, with two crystallographically different tpht bridges: bischelate and bis-monodentate and Zn(II) ion in a distorted square pyramidal environment.
The thermal behavior of I was studied by simultaneous TG/DSC analysis in both air and
N2 atmospheres. XRPD identification of the solid residue after analysis in air atmosphere
confirmed the presence of two phases: ZnO (ICDD PDF 36-1451) and ZnMn2O4
(ICDD PDF 24-1123), whose morphologies were analyzed using scanning electron
microscopy (SEM). The magnetic susceptibility measurements at low temperatures of I
were performed in order to examine the magnetic interactions and photoluminescence
properties at room temperature have been investigated.
PB  - Beograd : Srpsko kristalografsko društvo = Serbian Crystallographic Society
C3  - Izvodi radova / XXV konferencija Srpskog kristalografskog društva = Abstracts / 25th Conference of the Serbian Crystallographic Society, Bajina Bašta, 21-23. jun 2018
T1  - SINTEZA, STRUKTURA I SVOJSTVA DVOFAZNOG Mn(II)/Zn(II) MATERIJALA
T1  - SYNTHESIS, STRUCTURE AND PROPERTIES OF Mn(II)/Zn(II) BIPHASIC MATERIAL
EP  - 87
SP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6699
ER  - 
@conference{
author = "Radovanović, Lidija and Vulić, Predrag and Jagličić, Zvonko and Radovanović, Željko and Zeković, Ivana and Rogan, Jelena",
year = "2018",
abstract = "Reakcijom izmene liganada sintetisan je dvofazni materijal I izgrađen od kompleksa
[Mn(dipya)(H2O)4](tpht) i {[Zn(dipya)(tpht)]·H2O}n(tpht = anjon tereftalne kiseline,
dipya = 2,2’-dipiridilamin) i okarakterisan je rendgenskom difrakcijom praha (XRPD),
elementarnom analizom i IC-spektroskopijom. Ritveldovom metodom utvrđena je
struktura obe faze na osnovu poznatih kristalnih struktura kompleksa
[Mn(dipya)(H2O)4](tpht) (monokliničan sistem, prostorna grupa P21/c, a = 7,62769(7),
b = 23,8578(2), c = 11,09364(20) Å, β = 102,2997(10) °) i {[Zn(dipya)(tpht)]·H2O}n
(monokliničan sistem, prostorna grupa P21/n, a = 9,83498(12), b = 14,40421(15),
c = 12,27228(16) Å, β = 95,7954(9) °), koje su određene rendgenskom strukturnom
analizom [1, 2]. Odnos faza [Mn(dipya)(H2O)4](tpht) i {[Zn(dipya)(tpht)]·H2O}n u I
iznosio je 31:69 mas. %. Rezultati utačnjavanja Ritveldovom metodom u dobroj su
saglasnosti, sa neznatnim odstupanjem od strukturnih parametara originalnih struktura:
Rp: 4,28, Rwp: 5,60, Rexp: 4,42, χ
2
: 1,60, RB: 2,39, Rf: 1,99 za Mn(II)-fazu i RB: 3,15,
Rf: 3,13 za Zn(II)-fazu. Mn(II)-fazu obrazuju diskretne kompleksne jedinke
[Mn(dipya)(H2O)4](tpht) u kojima tpht ima ulogu jona suprotnog naelektrisanja sa
deformisano-oktaedarskom geometrijom Mn(II)-jona. Zn(II)-faza izgrađena je od cikcak lanaca {[Zn(dipya)(tpht)]·H2O}n, sa dva kristalografski različita mostovna tphtliganda: bis-helatnim i bis-monodentatnim. Zn(II)-jon se nalazi u deformisanom
kvadratno-piramidalnom okruženju. Termičko ponašanje I ispitano je simultanom
TG/DSC-analizom u atmosferi vazduha i azota. XRPD identifikacija čvrstog ostatka
nakon analize u atmosferi vazduha pokazala je prisustvo dve faze: ZnO (ICDD PDF 36-
1451) i ZnMn2O4 (ICDD PDF 24-1123), čija je morfologija ispitana skenirajućom
elektronskom mikroskopijom (SEM). Merenjem magnetne susceptibilnosti na niskim
temperaturama utvrđene su magnetne interakcije u I i analizirana su fotoluminescentna
svojstva na sobnoj temperaturi., A biphasic material I that is composed of complexes [Mn(dipya)(H2O)4](tpht) and
{[Zn(dipya)(tpht)]·H2O}n(tpht = anion of terephthalic acid, dipya = 2,2’-dipyridylamine)
has been synthesized by the ligand exchange reaction and characterized by X-ray powder
diffraction (XRPD), elemental analysis and IR spectroscopy. The structural
characterization of each phase was performed by Rietveld method according to the
known crystal structures of [Mn(dipya)(H2O)4](tpht) (monoclinic, space group P21/c,
a = 7,62769(7), b = 23,8578(2), c = 11,09364(20) Å, β = 102,2997(10) °) and
{[Zn(dipya)(tpht)]·H2O}n (monoclinic, space group P21/n, a = 9,83498(12),
b = 14,40421(15), c = 12,27228(16) Å, β = 95,7954(9) °) determined from single crystal
data [1, 2]. [Mn(dipya)(H2O)4](tpht) to {[Zn(dipya)(tpht)]·H2O}n phase-ratio in I was
31:69 wt. %. The Rietveld refinement results were in a good agreement with a minor
deviation of the final structural parameters from the original structures: Rp: 4.28,
Rwp: 5.60, Rexp: 4.42, χ
2
: 1.60, RB: 2.39, Rf: 1.99 for the Mn(II)-phase, and RB: 3.15,
Rf: 3.13 for the Zn(II)-phase. The Mn(II)-phase consists of discrete complex units
[Mn(dipya)(H2O)4](tpht) in which the tpht is counter anion and with distorted octahedral
geometry of Mn(II) ion. The Zn(II)-phase is comprised of zigzag chains of
{[Zn(dipya)(tpht)]·H2O}n, with two crystallographically different tpht bridges: bischelate and bis-monodentate and Zn(II) ion in a distorted square pyramidal environment.
The thermal behavior of I was studied by simultaneous TG/DSC analysis in both air and
N2 atmospheres. XRPD identification of the solid residue after analysis in air atmosphere
confirmed the presence of two phases: ZnO (ICDD PDF 36-1451) and ZnMn2O4
(ICDD PDF 24-1123), whose morphologies were analyzed using scanning electron
microscopy (SEM). The magnetic susceptibility measurements at low temperatures of I
were performed in order to examine the magnetic interactions and photoluminescence
properties at room temperature have been investigated.",
publisher = "Beograd : Srpsko kristalografsko društvo = Serbian Crystallographic Society",
journal = "Izvodi radova / XXV konferencija Srpskog kristalografskog društva = Abstracts / 25th Conference of the Serbian Crystallographic Society, Bajina Bašta, 21-23. jun 2018",
title = "SINTEZA, STRUKTURA I SVOJSTVA DVOFAZNOG Mn(II)/Zn(II) MATERIJALA, SYNTHESIS, STRUCTURE AND PROPERTIES OF Mn(II)/Zn(II) BIPHASIC MATERIAL",
pages = "87-86",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6699"
}
Radovanović, L., Vulić, P., Jagličić, Z., Radovanović, Ž., Zeković, I.,& Rogan, J.. (2018). SINTEZA, STRUKTURA I SVOJSTVA DVOFAZNOG Mn(II)/Zn(II) MATERIJALA. in Izvodi radova / XXV konferencija Srpskog kristalografskog društva = Abstracts / 25th Conference of the Serbian Crystallographic Society, Bajina Bašta, 21-23. jun 2018
Beograd : Srpsko kristalografsko društvo = Serbian Crystallographic Society., 86-87.
https://hdl.handle.net/21.15107/rcub_technorep_6699
Radovanović L, Vulić P, Jagličić Z, Radovanović Ž, Zeković I, Rogan J. SINTEZA, STRUKTURA I SVOJSTVA DVOFAZNOG Mn(II)/Zn(II) MATERIJALA. in Izvodi radova / XXV konferencija Srpskog kristalografskog društva = Abstracts / 25th Conference of the Serbian Crystallographic Society, Bajina Bašta, 21-23. jun 2018. 2018;:86-87.
https://hdl.handle.net/21.15107/rcub_technorep_6699 .
Radovanović, Lidija, Vulić, Predrag, Jagličić, Zvonko, Radovanović, Željko, Zeković, Ivana, Rogan, Jelena, "SINTEZA, STRUKTURA I SVOJSTVA DVOFAZNOG Mn(II)/Zn(II) MATERIJALA" in Izvodi radova / XXV konferencija Srpskog kristalografskog društva = Abstracts / 25th Conference of the Serbian Crystallographic Society, Bajina Bašta, 21-23. jun 2018 (2018):86-87,
https://hdl.handle.net/21.15107/rcub_technorep_6699 .

KRISTALNA STRUKTURA FEROMAGNETNOG Co(II)–KOMPLEKSA SA TEREFTALATO-LIGANDIMA

Radovanović, Lidija; Rogan, Jelena; Poleti, Dejan; Rodić, Marko V.; Jagličić, Zvonko

(Beograd : Srpsko kristalografsko društvo = Serbian Crystallographic Society, 2017)

TY  - CONF
AU  - Radovanović, Lidija
AU  - Rogan, Jelena
AU  - Poleti, Dejan
AU  - Rodić, Marko V.
AU  - Jagličić, Zvonko
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6698
AB  - Dizajn i sinteza koordinacionih polimera sa mostovnim tereftalato-ligandom (tpht) je
atraktivna oblast istraživanja zbog razvoja novih kompleksa sa korisnim osobinama [1].
Koordinacioni polimer {[Co(dipya)(tpht)]·H2O}n, 1, (dipya = 2,2’-dipiridilamin)
sintetisan je hidrotermalnom metodom (T=433 K, 96 h). Struktura 1 određena je
rendgenskom strukturnom analizom, dok su magnetna svojstva ispitana SQUID
magnetometrom. Kompleks 1 kristališe u monokliničnoj P21/n prostornoj grupi sa
parametrima ćelije: a=9,837(2), b=14,348(3), c=12,300(3) Å, β=96,35(3)° i
V=1725,4(6) Å3
. Atomi Co nalaze se u deformisanom kvadratno-piramidalnom
okruženju koje čine tri O-atoma i N-atom u ekvatorijalnoj ravni i N-atom u apikalnom
položaju. Svaki Co-atom koordiniran je sa dva kristalografski različita tpht liganda, bishelatnim i bis-monodentatnim, dajući cik-cak lance (slika 1). Formiranje trodimenzione
strukture postiže se mrežom vodoničnih veza između lanaca i dodatnim C–H···π
interakcijama. Magnetna susceptibilnost kompleksa 1 (slika 2) pokorava se Kirijevom
1/T zakonu na temperaturama višim od 60 K, sa konstantnom vrednošću efektivnog
magnetnog momenta µeff od 2,0 µB (umetak na slici 2), što ukazuje da je kompleks 1
nisko-spinski [2]. Slabe feromagnetne interakcije između jona Co2+ na rastojanjima
10,936(2) i 10,842(3) Å utvrđene su na osnovu malog ispupčenja na krivoj χ–T na oko
40 K i porasta µeff na istoj temperaturi [2]. Dodatni kristalografski podaci: M = 412,26 g mol–1
, Z = 4, ρx = 1,587 g cm–3
, F(000) =
= 844, µ(MoKα) = 1,031 mm–1
. Utačnjavanje sa F2 (252 parametara) dalo je R1 = 0,0374,
wR2 = 0,0688, S = 1,043 za sve podatke, i R1 = 0,0296 za 2948 refleksija sa I ≥ 2σ(I).
AB  - The design and synthesis of coordination polymers with bridging terephthalato ligand
(tpht) is an attractive area of investigation due to the development of new complexes
with desirable properties [1]. A coordination polymer of {[Co(dipya)(tpht)]·H2O}n, 1,
(dipya = 2,2’-dipyridylamine) has been synthesized by hydrothermal method (T=433 K,
96 h). The structure 1 was determined by single-crystal XRD analysis, while magnetic
properties were examined by SQUID magnetometer. The complex 1 crystallizes in the
monoclinic P21/n space group with cell parameters: a=9.837(2), b=14.348(3),
c=12.300(3) Å, β=96.35(3)° and V=1725.4(6) Å3
. Co atoms are in a distorted squarepyramidal environment comprised of three O atoms and N atom in the equatorial plane
and N atom in the apical position. Each Co atom is coordinated by two
crystallographycally different tpht ligands, bis-chelate and bis-monodentate, which
resulted in the zigzag chains (Figure 1). A three-dimensional framework is achieved by
hydrogen bond network between the chains and by additional C–H···π interactions.
Magnetic susceptibility of complex 1 (Figure 2) folows the Curie 1/T low for
temperatures above 60 K with constant effective magnetic moment µeff of 2.0 µB (inset in
Figure 2) indicating low spin complex 1 [2]. The weak ferromagnetic interactions
between Co2+ ions at distances of 10.936(2) and 10.842(3) Å were observed from a small
bump on the χ–T curve at approximately 40 K and from increase of µeff at the same
temperature [2]. Additional crystal data: M = 412.26 g mol–1
, Z = 4, ρx = 1.587 g cm–3
, F(000) = 844,
µ(MoKα) = 1.031 mm–1
. The refinement on F2 (252 parameters) yielded R1 = 0.0374,
wR2 = 0.0688, S = 1.043 for all data, and R1 = 0.0296 for 2948 reflections with I ≥ 2σ(I).
PB  - Beograd : Srpsko kristalografsko društvo = Serbian Crystallographic Society
C3  - Izvodi radova / XXIV konferencija Srpskog kristalografskog društva, Vršac, 22–24. jun 2017 = Abstracts / 24th Conference of the Serbian Crystallographic Society, Vršac, 22-24th Junе 2017
T1  - KRISTALNA STRUKTURA FEROMAGNETNOG Co(II)–KOMPLEKSA SA TEREFTALATO-LIGANDIMA
T1  - CRYSTAL STRUCTURE OF FERROMAGNETIC Co(II) COMPLEX WITH TEREPHTHALATO LIGANDS
EP  - 51
SP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6698
ER  - 
@conference{
author = "Radovanović, Lidija and Rogan, Jelena and Poleti, Dejan and Rodić, Marko V. and Jagličić, Zvonko",
year = "2017",
abstract = "Dizajn i sinteza koordinacionih polimera sa mostovnim tereftalato-ligandom (tpht) je
atraktivna oblast istraživanja zbog razvoja novih kompleksa sa korisnim osobinama [1].
Koordinacioni polimer {[Co(dipya)(tpht)]·H2O}n, 1, (dipya = 2,2’-dipiridilamin)
sintetisan je hidrotermalnom metodom (T=433 K, 96 h). Struktura 1 određena je
rendgenskom strukturnom analizom, dok su magnetna svojstva ispitana SQUID
magnetometrom. Kompleks 1 kristališe u monokliničnoj P21/n prostornoj grupi sa
parametrima ćelije: a=9,837(2), b=14,348(3), c=12,300(3) Å, β=96,35(3)° i
V=1725,4(6) Å3
. Atomi Co nalaze se u deformisanom kvadratno-piramidalnom
okruženju koje čine tri O-atoma i N-atom u ekvatorijalnoj ravni i N-atom u apikalnom
položaju. Svaki Co-atom koordiniran je sa dva kristalografski različita tpht liganda, bishelatnim i bis-monodentatnim, dajući cik-cak lance (slika 1). Formiranje trodimenzione
strukture postiže se mrežom vodoničnih veza između lanaca i dodatnim C–H···π
interakcijama. Magnetna susceptibilnost kompleksa 1 (slika 2) pokorava se Kirijevom
1/T zakonu na temperaturama višim od 60 K, sa konstantnom vrednošću efektivnog
magnetnog momenta µeff od 2,0 µB (umetak na slici 2), što ukazuje da je kompleks 1
nisko-spinski [2]. Slabe feromagnetne interakcije između jona Co2+ na rastojanjima
10,936(2) i 10,842(3) Å utvrđene su na osnovu malog ispupčenja na krivoj χ–T na oko
40 K i porasta µeff na istoj temperaturi [2]. Dodatni kristalografski podaci: M = 412,26 g mol–1
, Z = 4, ρx = 1,587 g cm–3
, F(000) =
= 844, µ(MoKα) = 1,031 mm–1
. Utačnjavanje sa F2 (252 parametara) dalo je R1 = 0,0374,
wR2 = 0,0688, S = 1,043 za sve podatke, i R1 = 0,0296 za 2948 refleksija sa I ≥ 2σ(I)., The design and synthesis of coordination polymers with bridging terephthalato ligand
(tpht) is an attractive area of investigation due to the development of new complexes
with desirable properties [1]. A coordination polymer of {[Co(dipya)(tpht)]·H2O}n, 1,
(dipya = 2,2’-dipyridylamine) has been synthesized by hydrothermal method (T=433 K,
96 h). The structure 1 was determined by single-crystal XRD analysis, while magnetic
properties were examined by SQUID magnetometer. The complex 1 crystallizes in the
monoclinic P21/n space group with cell parameters: a=9.837(2), b=14.348(3),
c=12.300(3) Å, β=96.35(3)° and V=1725.4(6) Å3
. Co atoms are in a distorted squarepyramidal environment comprised of three O atoms and N atom in the equatorial plane
and N atom in the apical position. Each Co atom is coordinated by two
crystallographycally different tpht ligands, bis-chelate and bis-monodentate, which
resulted in the zigzag chains (Figure 1). A three-dimensional framework is achieved by
hydrogen bond network between the chains and by additional C–H···π interactions.
Magnetic susceptibility of complex 1 (Figure 2) folows the Curie 1/T low for
temperatures above 60 K with constant effective magnetic moment µeff of 2.0 µB (inset in
Figure 2) indicating low spin complex 1 [2]. The weak ferromagnetic interactions
between Co2+ ions at distances of 10.936(2) and 10.842(3) Å were observed from a small
bump on the χ–T curve at approximately 40 K and from increase of µeff at the same
temperature [2]. Additional crystal data: M = 412.26 g mol–1
, Z = 4, ρx = 1.587 g cm–3
, F(000) = 844,
µ(MoKα) = 1.031 mm–1
. The refinement on F2 (252 parameters) yielded R1 = 0.0374,
wR2 = 0.0688, S = 1.043 for all data, and R1 = 0.0296 for 2948 reflections with I ≥ 2σ(I).",
publisher = "Beograd : Srpsko kristalografsko društvo = Serbian Crystallographic Society",
journal = "Izvodi radova / XXIV konferencija Srpskog kristalografskog društva, Vršac, 22–24. jun 2017 = Abstracts / 24th Conference of the Serbian Crystallographic Society, Vršac, 22-24th Junе 2017",
title = "KRISTALNA STRUKTURA FEROMAGNETNOG Co(II)–KOMPLEKSA SA TEREFTALATO-LIGANDIMA, CRYSTAL STRUCTURE OF FERROMAGNETIC Co(II) COMPLEX WITH TEREPHTHALATO LIGANDS",
pages = "51-50",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6698"
}
Radovanović, L., Rogan, J., Poleti, D., Rodić, M. V.,& Jagličić, Z.. (2017). KRISTALNA STRUKTURA FEROMAGNETNOG Co(II)–KOMPLEKSA SA TEREFTALATO-LIGANDIMA. in Izvodi radova / XXIV konferencija Srpskog kristalografskog društva, Vršac, 22–24. jun 2017 = Abstracts / 24th Conference of the Serbian Crystallographic Society, Vršac, 22-24th Junе 2017
Beograd : Srpsko kristalografsko društvo = Serbian Crystallographic Society., 50-51.
https://hdl.handle.net/21.15107/rcub_technorep_6698
Radovanović L, Rogan J, Poleti D, Rodić MV, Jagličić Z. KRISTALNA STRUKTURA FEROMAGNETNOG Co(II)–KOMPLEKSA SA TEREFTALATO-LIGANDIMA. in Izvodi radova / XXIV konferencija Srpskog kristalografskog društva, Vršac, 22–24. jun 2017 = Abstracts / 24th Conference of the Serbian Crystallographic Society, Vršac, 22-24th Junе 2017. 2017;:50-51.
https://hdl.handle.net/21.15107/rcub_technorep_6698 .
Radovanović, Lidija, Rogan, Jelena, Poleti, Dejan, Rodić, Marko V., Jagličić, Zvonko, "KRISTALNA STRUKTURA FEROMAGNETNOG Co(II)–KOMPLEKSA SA TEREFTALATO-LIGANDIMA" in Izvodi radova / XXIV konferencija Srpskog kristalografskog društva, Vršac, 22–24. jun 2017 = Abstracts / 24th Conference of the Serbian Crystallographic Society, Vršac, 22-24th Junе 2017 (2017):50-51,
https://hdl.handle.net/21.15107/rcub_technorep_6698 .