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首页> 外文期刊>Chemistry: A European journal >Field-Induced Slow Magnetic Relaxation of GdIII Complex with a Pt-Gd Heterometallic Bond
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Field-Induced Slow Magnetic Relaxation of GdIII Complex with a Pt-Gd Heterometallic Bond

机译：具有PT-GD杂项键的GDIII复合物的场诱导的缓慢磁性松弛

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摘要

Heterometallic Gd-Pt complexes ([Gd_2Pt_3(H_2O)_2(SAc)_(12)] (SAc=thioacetate), [Y_(1.4)Gd_(0.6)Pt_3- (H_2O)_2(SAc)_(12)], and [Gd_2Pt_3(H_2O)_6(SAc)_(12)]·7H_2O have been synthesized. The crystal structures and DFT calculations indicated a Gd-Pt heretometallic bond. Single-crystal ESR spectra determined the direction of magnetic anisotropy as direction of the Gd-Pt bond. In other words, the Gd-Pt bond dictates the direction of magnetic anisotropy. The heterometallic Gd-Pt bond lowers the symmetry of the Gd ion, splitting the Kramers doublet in a dc field. Thus, we observed clear field-induced slow magnetic relaxation of [Y_(1.4)Gd_(0.6)Pt_3(H_2O)_2(SAc)_(12)] up to 36 K. The relaxation process was determined to be a direct process.
机译：杂动脉Gd-Pt络合物（[Gd_2PT_3（H_2O）_2（SAC）_（12）]（SAC =硫代乙酸酯），[Y_（1.4）GD_（0.6）PT_3-（H_2O）_2（SAC）_（12）]， 已经合成了[GD_2PT_3（H_2O）_6（SAC）_（12）]·7H_2O。晶体结构和DFT计算表明了GD-PT氯阈值键。单晶ESR光谱确定磁各向异性的方向作为磁各向异性的方向 GD-PT键。换句话说，GD-PT键决定了磁各向异性的方向。杂常数Gd-Pt键降低了GD离子的对称性，将kramers双板分裂在DC场中。因此，我们观察了透明场 - 抑制[Y_（1.4）GD_（0.6）Pt_3（H_2O）_2（SAC）_（SAC）_（12）]的缓慢磁性弛豫，高达36K。测定弛豫过程是直接过程。

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  • 来源
    《Chemistry: A European journal》 |2017年第19期|共6页
  • 作者

    Takefumi Yoshida; Goulven Cosquer; David Chukwuma Izuogu; Hiroyoshi Ohtsu; Masaki Kawano; Yanhua Lan; Wolfgang Wernsdorfer; Hiroyuki Nojiri; Brian K. Breedlove; Masahiro Yamashita;

  • 作者单位

    Department of Chemistry Graduate School of Science Tohoku University 6-3 Aza-aoba Aramaki Sendai 980-8578 (Japan) and WPI-Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Sendai 980-8577 (Japan);

    Department of Chemistry Graduate School of Science Tohoku University 6-3 Aza-aoba Aramaki Sendai 980-8578 (Japan) and WPI-Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Sendai 980-8577 (Japan);

    Department of Chemistry Graduate School of Science Tohoku University 6-3 Aza-aoba Aramaki Sendai 980-8578 (Japan) and WPI-Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Sendai 980-8577 (Japan);

    Department of Chemistry Graduate School of Science Tokyo Institute of Technology 2-12-1 O-okayama Meguro-ku Tokyo 152-8551 (Japan);

    Department of Chemistry Graduate School of Science Tokyo Institute of Technology 2-12-1 O-okayama Meguro-ku Tokyo 152-8551 (Japan);

    Laboratory Louis Nèel CNRS BP 166 38042 Grünoble Cedex 9 (France);

    Laboratory Louis Nèel CNRS BP 166 38042 Grünoble Cedex 9 (France);

    Institute for Materials Research Tohoku University Sendai Miyagi 980-8577 (Japan);

    Department of Chemistry Graduate School of Science Tohoku University 6-3 Aza-aoba Aramaki Sendai 980-8578 (Japan) and WPI-Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Sendai 980-8577 (Japan);

    Department of Chemistry Graduate School of Science Tohoku University 6-3 Aza-aoba Aramaki Sendai 980-8578 (Japan) and WPI-Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Sendai 980-8577 (Japan);

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  • 正文语种 eng
  • 中图分类 应用化学;
  • 关键词

    gadolinium; heterometallic bond; magnetic properties; slow magnetic relaxation; thioacetate;

    机译：gadolinium;杂项键;磁性;慢磁性松弛;硫代乙酸盐;

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