SYNTHESIS, CRYSTAL-STRUCTURE, AND MAGNETIC-PROPERTIES OF TETRANUCLEAR COMPLEXES CONTAINING EXCHANGE-COUPLED GD2CU2, DY2CU2 SPECIES
SYNTHESIS, CRYSTAL-STRUCTURE, AND MAGNETIC-PROPERTIES OF TETRANUCLEAR COMPLEXES CONTAINING EXCHANGE-COUPLED GD2CU2, DY2CU2 SPECIES
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DOI：
10.1021/ic00334a031
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发表时间：
1990-05-02
影响因子：
4.6
通讯作者：
PARDI, L
中科院分区：
文献类型：
--
作者：
BENELLI, C;CANESCHI, A;PARDI, L
通过CuSatnOH（CuSatnOH=[N-（3-氨丙基）水杨醛亚氨基]羟铜（II））与稀土六氟乙酰丙酮（hfac）反应，得到通式为Ln（hfac）3CuSatnOH（Ln= Gd，Dy）的配合物。镝衍生物的晶体结构通过室温下的X射线衍射测定：该配合物属于三斜晶系，空间群P\，a= 12.386（5）×，B= 13.574（3）×，c= 13.918（4）×，a= 69.38（2），ß= 65.35（6），y= 69.93（5），Z= 2。钆衍生物被发现是同晶的。报道了这两种化合物的磁性和EPR谱。讨论了钆衍生物的磁性与文献中报道的以前的数据一起，并提出了一个自旋极化模型来证明所观察到的钆和铜之间的铁磁耦合。这些数据的相关性高的磁性-7）。超导体也有讨论。
By reacting CuSatnOH (CuSatnOH=[/V-(3-aminopropyl) salicylaldiminato] hydroxocopper (ll)) with rare-earth hexafluoro-acetylacetonates (hfac), complexes of general formula Ln (hfac) 3CuSatnOH (Ln= Gd, Dy) were obtained. The crystal structure of the dysprosium derivative was determined through X-ray diffraction at room temperature: the complex crystallizes in the triclinic system, space group P\, with a= 12.386 (5) Á, b= 13.574 (3) Á, c= 13.918 (4) Á, a= 69.38 (2), ß= 65.35 (6), y= 69.93 (5), and Z= 2. The gadolinium derivative was found to be isomorphous. The magnetic properties of both compounds and their EPR spectra are reported. The magnetic properties of the gadolinium derivative are discussedtogether with previous data reported in the literature, and a spin-polarization model is suggested to justify the observed ferromagnetic coupling between gadolinium and copper. The relevance of these data to the magnetic properties of high-7). superconductors is also discussed.