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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F20%3A00115185" target="_blank" >RIV/00216224:14310/20:00115185 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28610/19:63523882
Result on the web
<a href="http://dx.doi.org/10.1039/c9nj05071j" target="_blank" >http://dx.doi.org/10.1039/c9nj05071j</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c9nj05071j" target="_blank" >10.1039/c9nj05071j</a>

Result language
angličtina
Original language name
Heterometallic 3d-4f {Co2Gd4} phosphonates: new members of the potential magnetic cooler family
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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