000134851 001__ 134851
000134851 005__ 20260112133153.0
000134851 0247_ $$2doi$$a10.1002/agt2.520
000134851 0248_ $$2sideral$$a138364
000134851 037__ $$aART-2024-138364
000134851 041__ $$aeng
000134851 100__ $$aZhai, Yuan-Qi
000134851 245__ $$aGd-based molecular coolants: Aggregating for better magnetocaloric effect
000134851 260__ $$c2024
000134851 5060_ $$aAccess copy available to the general public$$fUnrestricted
000134851 5203_ $$aTwo series of 3d-Gd mixed-metal phosphonate complexes with either only two gadolinium centers such as {Gd2}, {Ni2Gd2}, {Co4Gd2}, {Co8Gd2}, {Fe6Gd2}, and {Fe17Gd2} or more than two gadoliniums such as {Co8Gd4}, {Mn8Gd4}, {Co4Gd6}, {Mn4Gd6}, {Co6Gd8}, {Ni5Gd8}, {Ni6Gd6}, {Co8Gd8}, and {Mn9Gd9} have been solvothermally prepared and magnetothermally studied. The nearly identical environments of the Gd(III) dimer in the first series allow us to qualitatively analyze the effect of magnetic exchange coupling on the magnetocaloric effect (MCE). By doubling, tripling, or quadrupling of the Gd(III) centers, the second series of 3d-Gd mixed-metal complexes was built to further test the other effects of exchange couplings on MCE in more complicated circumstances. For the antiferromagnetic coupling cases, the results are nearly identical but diversify when topological spin frustrations are created, whose massive low-lying excited spin states help enhance MCE. For presumably ferromagnetically coupled ones, albeit are rare in phosphonate complexes, they do exhibit excellent MCE. Meanwhile, the complexes with weakly coupled metal centers serve as excellent examples for studying the effect of molecular mass on MCE when its magnitude is expressed in the unit of Joule per kilogram, from which we can see the values are directly proportional to the percentage of the Gd(III) ions in molecular weight.
000134851 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-124734OB-C21
000134851 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000134851 592__ $$a3.76$$b2024
000134851 593__ $$aChemistry (miscellaneous)$$c2024$$dQ1
000134851 593__ $$aMolecular Biology$$c2024$$dQ1
000134851 593__ $$aMaterials Science (miscellaneous)$$c2024$$dQ1
000134851 593__ $$aMaterials Chemistry$$c2024$$dQ1
000134851 594__ $$a18.3$$b2024
000134851 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000134851 700__ $$aChen, Wei-Peng
000134851 700__ $$0(orcid)0000-0002-8028-9064$$aEvangelisti, Marco
000134851 700__ $$aFu, Zhendong
000134851 700__ $$aZheng, Yan-Zhen
000134851 773__ $$g5, 4 (2024), e520 [14 pp.]$$pAggregate (Hoboken)$$tAggregate (Hoboken)$$x2766-8541
000134851 8564_ $$s3858677$$uhttps://zaguan.unizar.es/record/134851/files/texto_completo.pdf$$yVersión publicada
000134851 8564_ $$s2569320$$uhttps://zaguan.unizar.es/record/134851/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000134851 909CO $$ooai:zaguan.unizar.es:134851$$particulos$$pdriver
000134851 951__ $$a2026-01-12-12:37:47
000134851 980__ $$aARTICLE