Lanthanide complexes supported via benzimidazole carboxylic acid ligand: Synthesis, luminescence and magnetic properties
| Autor: | Jia-Qiang Du, Fei Xie, Duo-Zhi Wang, Ru-Xia Yang, Jun-Liang Dong, Hai-Ming Lan |
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| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Lanthanide Thermogravimetric analysis 010405 organic chemistry Ligand Chemistry Hydrogen bond Carboxylic acid Organic Chemistry Infrared spectroscopy 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Inorganic Chemistry Crystallography chemistry.chemical_compound Hydroxymethyl Spectroscopy Powder diffraction |
| Zdroj: | Journal of Molecular Structure. 1202:127345 |
| ISSN: | 0022-2860 |
| DOI: | 10.1016/j.molstruc.2019.127345 |
| Popis: | Six new complexes {[Gd(L1)2(H2O)3]·Cl}n (1), [Eu(HL2)2(H2O)6]·(H2O)4·3Cl (2), [Ln(HL2)2(H2O)6]·3Cl [Ln = Ho (3) and Sm (4)], {[Ln(HL3)2(H2O)2]·2Cl}n [Ln = Eu (5) and Yb (6)] (H2L1 = 2-(hydroxymethyl)-1H-benzo[d]imidazole-5-carboxylic acid, H2L2 = 2-(4-hydroxyphenyl)-1H-benzo[d]imidazole-5-carboxylic acid, H3L3 = 2-(2-carboxyethyl)-1H-benzo[d]imidazole-5-carboxylic acid) have been solvothermally synthesized and structurally characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis, powder X-ray diffraction (PXRD) and thermogravimetric analysis (TGA). Complexes 1, 5 and 6 are an infinite one-dimensional (1D) chain by hydrogen bonding interactions to give a 3D supermolecular structure. Complexes 2–4 are mononuclear structure, which further formed 3D supermoleculear structure through hydrogen-bonding interactions. Furthermore, luminescent properties of these lanthanide complexes have been assessed in the solid state at ambient temperature. In addition, magnetic measurements reveal that complexes 3–6 have a weak antiferromagnetic interaction, while complex 1 has a ferromagnetic interaction. |
| Databáze: | OpenAIRE |
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