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Cryogenic magneto-caloric effect and magneto-structural correlations in carboxylate-bridged Gd(III) compounds

机译：羧酸盐桥联的Gd（III）化合物的低温磁热效应和磁结构相关性

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Two new infinite coordination chain compounds [Gd(CH3CO2)3(dmf)]∞ (1) and {[Gd(HO(CH2)3CO2)3(H2O)]·H2O}∞ (2) have been obtained attempting to modify a prototype molecular cooler. The structures of both compounds as determined by single-crystal X-ray diffraction are reported, together with a detailed study of their magnetic and thermal properties, describing for both compounds a large magneto-caloric effect. The dominant ferromagnetic interaction present in 2 clearly favours this material at low applied magnetic fields, with respect to 1 that exhibits antiferromagnetic interactions. Magneto-structural correlations of the sign and strength of the magnetic interactions are derived for carboxylato-bridged Gd(III) systems.

机译：尝试修改两个新的无限配位链化合物[Gd（CH3CO2）3（dmf）]∞（1）和{[Gd（HO（CH2）3CO2）3（H2O）]·H2O}∞（2）原型分子冷却器。报道了通过单晶X射线衍射确定的两种化合物的结构，以及对它们的磁性和热学性质的详细研究，描述了两种化合物的大的磁热效应。相对于显示反铁磁相互作用的1，在2中存在的主要铁磁相互作用显然有利于此材料在低的施加磁场下。对于羧基桥联的Gd（III）系统，推导了磁相互作用的符号和强度的磁结构相关性。

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Roubeau, Olivier; Lorusso, Giulia; Teat, Simon J.; Evangelisti, Marco;
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年度 2015
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正文语种 eng
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Cryogenic magneto-caloric effect and magneto-structural correlations in carboxylate-bridged Gd(III) compounds

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