A series of 3D lanthanide complexes based on H bond and halogen-halogen interactions: Synthesis, structure, spectroscopic and thermal properties

详细信息    查看全文

• 作者：Junchen WU (吴俊辰)^a ; ^b ; Hua LI (李 华)^c ; Ning REN (李 华)^d ; ^{ningren9@163.com" class="auth_mail" title="E-mail the corresponding author} ; Jianjun ZHANG (张建军)^a ; ^b ; ^{jjzhang6@126.com" class="auth_mail" title="E-mail the corresponding author} ; Shuping WANG (王淑萍)^b
• 关键词：lanthanide complexes ; crystal structure ; supramolecular ; H bond ; halogen-halogen interactions ; luminescent property ; TG/DSC ; rare earths
• 刊名：Journal of Rare Earths
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：34
• 期：11
• 页码：1083-1088
• 全文大小：1509 K

文摘

Four lanthanide coordination complexes, namely, [Ln(2,3-DClBA)₃(5,5′-dmebipy)(H₂O)]₂(Ln=Sm(1), Eu(2), Dy(3), Ho(4)); 2,3-DClBA=2,3-dichlorobenzoate; 5,5′-dmebipy=5,5′-dmethylbipyridine) were synthesized and characterized by elemental analysis, infrared spectroscopy and single crystal X-ray diffraction. Findings indicated that complex 3 was a dinuclear molecule, and the center Dy³⁺ was eight-coordinated. Each dinuclear units could be connected by H bond and halogen-halogen interactions. Luminescent property of complex 2 suggested the typical intense emissions of Eu³⁺ ions. Thermal analysis showed that the complexes decomposed in three steps: the coordination water was lost firstly then the neutral ligand 5,5′dmebipy was lost and lastly the 2,3-DClBA ligand was lost.