2023/11/21 by Yue Shen, Tian‐Biao Qu, Fei‐Yue Chen +5
Chemistry · Materials Science · #Lanthanide and Transition Metal Complexes #Magnetism in coordination complexes #Metal-Organic Frameworks: Synthesis and Applications
paper · doi:10.1002/zaac.202300162
openalex publication_date 2023/11/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/25
Abstract A series of 3d–4f heterometallic complexes, namely [Ln 2 Co 2 (2,3‐DCB) 10 (phen) 2 ] [Ln=Nd ( 1 ), Sm ( 2 ), Eu ( 3 ), Gd ( 4 ), Tb ( 5 ), Dy ( 6 ), Er ( 7 )], were obtained through the self‐assembly reactions of Ln(NO 3 ) 3 ⋅ n H 2 O, Co(NO 3 ) 2 ⋅ 6H 2 O, 2,3‐dichlorobenzoic acid (2,3‐HDCB), NaOH and 1,10‐phenanthroline (phen) under solvothermal conditions. Their crystal structures were determined by single‐crystal X‐ray diffraction. They were also characterized by elemental analysis, FT‐IR, powder X‐ray diffraction (PXRD) and thermogravimetric analysis (TGA) and differential thermoanalysis (DTA). These seven complexes have the same molecular formula but different crystal structures. Complexes 1 – 3 , 4 and 5 as well as 6 and 7 are crystallographically isomorphous, respectively. They all exhibit zero‐dimensional (0D) linear tetranuclear cluster structures. These 0D linear tetranuclear clusters can be further connected into a two‐dimensional (2D) supramolecular network via the extensive intermolecular π–π interactions between 2,3‐DCB and phen. The photoluminescent properties of 3 , 5 and 6 and the magnetic properties of 1 – 2 and 4 – 7 were investigated. Complex 6 shows a slow magnetic relaxation behavior.