A zigzag Dy4III cluster exhibiting single-molecule magnet, ferroelectric and white-light emitting properties
A zigzag Dy4III cluster exhibiting single-molecule magnet, ferroelectric and white-light emitting properties
复制标题
具有单分子磁体、铁电和白光发射特性的锯齿状 Dy-4(III) 簇
DOI：
10.1039/c4tc01275e
复制
发表时间：
2014-11-14
影响因子：
6.4
通讯作者：
Tong, Ming-Liang
中科院分区：
文献类型：
--
作者：
Guo, Peng-Hu;Meng, Yan;Tong, Ming-Liang
基于水热条件下的自组装，设计了一种新型多功能配合物[Dy-4（OH）（2）（bpt）（4）（NO3）（6）（EtOH）（2）]中心点EtOH（1，Hbpt = 3，5-bis（pyridin-2-yl）-1，2，4-trizolate），该配合物具有单分子磁体（SMMs）、白光发射和铁电性。静态和动态磁性研究揭示了1的SMM行为，势垒Ueff = 43.22（8）K。此外，利用蓝色（bpt（-））和黄色（Dy 3+）发射颜色的二色混合物的策略，通过调制激发波长获得白光发射。最近，这种策略已经被用于制造镧系元素荧光分子磁体。此外，由于极点群C-2 v，铁电性，一个“加”的特征，被添加到集群。
A novel multifunctional complex [Dy-4(OH)(2)(bpt)(4)(NO3)(6)(EtOH)(2)]center dot EtOH (1, Hbpt = 3,5-bis(pyridin-2-yl)-1,2,4-trizolate) was designed, based on the self-assembly under hydrothermal conditions, and it displays properties of single-molecule magnets (SMMs), white-light emission and ferroelectricity. Studies of static and dynamic magnetism reveal the SMMs behaviour of 1 with energy barrier U-eff = 43.22(8) K. Furthermore, the strategy of a dichromatic mixture of blue (bpt(-)) and yellow (Dy3+) emissive colours was utilized to obtain white-light emission through modulation of the excitation wavelength. This strategy has been worked up to create lanthanide-based fluorescent molecular magnets recently. Moreover, ferroelectricity, a "plus" feature, was added to the cluster as a result of the polar point group C-2v.