Magnetic and luminescent properties of lanthanide coordination polymers with asymmetric biphenyl-3,2',5'-tricarboxylate.
Magnetic and luminescent properties of lanthanide coordination polymers with asymmetric biphenyl-3,2',5'-tricarboxylate.
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DOI：
10.1039/c5dt01894c
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发表时间：
2015-08
影响因子：
4
通讯作者：
Jie Zhao;Guangwen Zhu;Li-Qiong Xie;Yenbo Wu;Hai-Lun Wu;Aiju Zhou;Zun-Yuan Wu;Jing Wang;
中科院分区：
文献类型：
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作者：
Jie Zhao;Guangwen Zhu;Li-Qiong Xie;Yenbo Wu;Hai-Lun Wu;Aiju Zhou;Zun-Yuan Wu;Jing Wang;
以不对称多羧酸配体联苯-3，2 '，5'-三羧酸（H3 bptc）和邻菲咯啉（phen）为配体，成功合成了8种同结构的稀土配位聚合物[Ln（bptc）（phen）（H2O）]n（Ln = Dy，Eu，Tb，Gd，Sm，Nd，Yb，Pr）.单晶X射线衍射分析表明，配合物具有由桨轮二聚体[Ln 2（CO2）4]组成的（3，6）-连接的CdI 2型配位网络。研究了配合物的磁性和荧光性质。值得注意的是，Dy（iii）络合物的行为具有缓慢的磁化弛豫，其中注意到频率依赖的异相信号。
Eight isostructural lanthanide coordination polymers [Ln(bptc)(phen)(H2O)]n (Ln = Dy for , Eu for , Tb for , Gd for , Sm for , Nd for , Yb for , Pr for ) were successfully prepared based on bridging asymmetric polycarboxylate ligand biphenyl-3,2',5'-tricarboxylic acid (H3bptc) and chelating 1,10-phenanthroline (phen) coligand. Single crystal X-ray analysis reveals that complexes have a (3,6)-connected CdI2-type coordination network consisting of paddle-wheel dimers [Ln2(CO2)4]. The magnetic and fluorescent properties of have been investigated. Significantly, the Dy(iii) complex behaves with slow relaxation of the magnetization, where the frequency-dependent out-of-phase signals are noticed.