{NiLn} (Ln = Gd, Dy) rod-like nano-sized heteronuclear coordination clusters with a double carbonate bridge skeleton and remarkable MCE behaviour.
{NiLn} (Ln = Gd, Dy) rod-like nano-sized heteronuclear coordination clusters with a double carbonate bridge skeleton and remarkable MCE behaviour.
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DOI：
10.1039/c6dt00859c
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发表时间：
2016-05
影响因子：
4
通讯作者：
Eliana C. Guarda;K. Bader;J. van Slageren;P. Alborés
中科院分区：
文献类型：
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作者：
Eliana C. Guarda;K. Bader;J. van Slageren;P. Alborés
新合成的配合物[NiLn（Piv）16（teaH）6（OCH 3）2（CO 3）2（H2O）2] Ln = Gd，Dy显示出明显的μ5-碳酸根桥连的八核平面{Ni 4Ln 4}核，进一步被嵌入的{Ni 3Ln}立方烷基序所覆盖，得到约1.2 × 2.8 nm的棒状纳米分子。不寻常的MCE行为已被发现，由于竞争的铁磁和反铁磁Ni-Ni和Ni-Ln交换相互作用所产生的多个低激发态。
The newly obtained complexes [NiLn(Piv)16(teaH)6(OCH3)2(CO3)2(H2O)2] Ln = Gd, Dy, show a remarkable μ5-carbonate bridged octanuclear planar {Ni4Ln4} core further capped with embedded {Ni3Ln} cubane motifs to afford a rod shaped nano-sized molecule of about 1.2 × 2.8 nm. Unusual MCE behaviour has been found due to multiple low lying excited states arising from competing ferromagnetic and anti-ferromagnetic Ni-Ni and Ni-Ln exchange interactions.