Heterometallic 3d-4f {Co2Gd4} phosphonates: new members of the
potential magnetic cooler family

J 2020

Heterometallic 3d-4f {Co2Gd4} phosphonates: new members of the potential magnetic cooler family

DOROSHENKO, Iaroslav, Axel BUCHHOLZ, Eva Domincova BERGEROVA, Winfried PLASS, Jiří PINKAS et. al.

Základní údaje

Originální název

Heterometallic 3d-4f {Co2Gd4} phosphonates: new members of the potential magnetic cooler family

Autoři

DOROSHENKO, Iaroslav (804 Ukrajina, domácí), Axel BUCHHOLZ (276 Německo), Eva Domincova BERGEROVA (203 Česká republika), Winfried PLASS (276 Německo) a Jiří PINKAS (203 Česká republika, garant, domácí)

Vydání

New Journal of Chemistry, Cambridge, ROYAL SOC. CHEMISTRY, 2020, 1144-0546

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10400 1.4 Chemical sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.591

Kód RIV

RIV/00216224:14310/20:00115185

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1039/c9nj05071j

UT WoS

000504433000026

Klíčová slova anglicky

TRANSITION-METAL-COMPLEXES; CLUSTERS; CAGES; GD; SYMMETRY; SHAPE; LANTHANIDES; DESIGN; LN

Štítky

CF NMR, CF SAXS, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 30. 3. 2021 16:15, Mgr. Marie Šípková, DiS.

Anotace

V originále

Three new heterometallic phosphonate complexes with a novel 3d-4f metal core {Co2Gd4} were isolated. The reactions between CoCl2, GdCl3, ligand sodium salts, and 2,2 '-bipyridine in methanol solution lead to new unexpected 3d-4f heterometallic complexes, [Na(2)CoIII2Gd(4)(L)(6)(bpy)(2)(OR)(2)]center dot nSolv (L = SAA(3-) (1), BSAA(3-) (2), and NAA(3-) (3); bpy = 2,2 '-bipyridine; OR = OH and OMe; Solv = H2O and MeOH), composed of a rare case of two magnetically independent oxygen bridged Gd2O2 dinuclear units, which are separated by O-P-O bridges. According to the BVS calculations and measured magnetic properties, only Co-III ions are present in the obtained complexes. The magnetic properties of the compounds 1-3 were studied and the entropy changes for the designation of the magnetocaloric effect were calculated. The largest value for the magnetic entropy change -Delta S-M of 20 J kg(-1) K-1 for complex 1 has been found for T-av = 2.25 K and H-f = 5 T.

Návaznosti

LM2015043, projekt VaV

Název: Česká infrastruktura pro integrativní strukturní biologii (Akronym: CIISB)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Czech Infrastructure for Integrative Structural Biology

LQ1601, projekt VaV

Název: CEITEC 2020 (Akronym: CEITEC2020)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020

Citovat

DOROSHENKO, Iaroslav, Axel BUCHHOLZ, Eva Domincova BERGEROVA, Winfried PLASS a Jiří PINKAS. Heterometallic 3d-4f {Co2Gd4} phosphonates: new members of the potential magnetic cooler family. New Journal of Chemistry. Cambridge: ROYAL SOC. CHEMISTRY, 2020, roč. 44, č. 2, s. 513-521. ISSN 1144-0546. Dostupné z: https://dx.doi.org/10.1039/c9nj05071j.

@article{1602442,
   author = {Doroshenko, Iaroslav and Buchholz, Axel and Bergerova, Eva Domincova and Plass, Winfried and Pinkas, Jiří},
   article_location = {Cambridge},
   article_number = {2},
   doi = {http://dx.doi.org/10.1039/c9nj05071j},
   keywords = {TRANSITION-METAL-COMPLEXES; CLUSTERS; CAGES; GD; SYMMETRY; SHAPE; LANTHANIDES; DESIGN; LN},
   language = {eng},
   issn = {1144-0546},
   journal = {New Journal of Chemistry},
   title = {Heterometallic 3d-4f {Co2Gd4} phosphonates: new members of the potential magnetic cooler family},
   url = {http://dx.doi.org/10.1039/c9nj05071j},
   volume = {44},
   year = {2020}
}

TY  - JOUR
ID  - 1602442
AU  - Doroshenko, Iaroslav - Buchholz, Axel - Bergerova, Eva Domincova - Plass, Winfried - Pinkas, Jiří
PY  - 2020
TI  - Heterometallic 3d-4f {Co2Gd4} phosphonates: new members of the potential magnetic cooler family
JF  - New Journal of Chemistry
VL  - 44
IS  - 2
SP  - 513-521
EP  - 513-521
PB  - ROYAL SOC. CHEMISTRY
SN  - 11440546
KW  - TRANSITION-METAL-COMPLEXES
KW  - CLUSTERS
KW  - CAGES
KW  - GD
KW  - SYMMETRY
KW  - SHAPE
KW  - LANTHANIDES
KW  - DESIGN
KW  - LN
UR  - http://dx.doi.org/10.1039/c9nj05071j
L2  - http://dx.doi.org/10.1039/c9nj05071j
N2  - Three new heterometallic phosphonate complexes with a novel 3d-4f metal core {Co2Gd4} were isolated. The reactions between CoCl2, GdCl3, ligand sodium salts, and 2,2 '-bipyridine in methanol solution lead to new unexpected 3d-4f heterometallic complexes, [Na(2)CoIII2Gd(4)(L)(6)(bpy)(2)(OR)(2)]center dot nSolv (L = SAA(3-) (1), BSAA(3-) (2), and NAA(3-) (3); bpy = 2,2 '-bipyridine; OR = OH and OMe; Solv = H2O and MeOH), composed of a rare case of two magnetically independent oxygen bridged Gd2O2 dinuclear units, which are separated by O-P-O bridges. According to the BVS calculations and measured magnetic properties, only Co-III ions are present in the obtained complexes. The magnetic properties of the compounds 1-3 were studied and the entropy changes for the designation of the magnetocaloric effect were calculated. The largest value for the magnetic entropy change -Delta S-M of 20 J kg(-1) K-1 for complex 1 has been found for T-av = 2.25 K and H-f = 5 T.
ER  -

DOROSHENKO, Iaroslav, Axel BUCHHOLZ, Eva Domincova BERGEROVA, Winfried PLASS a Jiří PINKAS. Heterometallic 3d-4f $\{$Co2Gd4$\}$ phosphonates: new members of the potential magnetic cooler family. \textit{New Journal of Chemistry}. Cambridge: ROYAL SOC. CHEMISTRY, 2020, roč.~44, č.~2, s.~513-521. ISSN~1144-0546. Dostupné z: https://dx.doi.org/10.1039/c9nj05071j.

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