Neodymium ternary complexes with 2,4,6-tri(2-pyridyl)-1,3,5-triazine: Synthesis, crystal structure and fluorescence property
| Autor: | Qiang Liu, Xiangyu Wan, Pei-jun Cai, Kai Du, Yin Qiang, Shuai Zhang |
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| Rok vydání: | 2019 |
| Předmět: |
010405 organic chemistry
Chemistry Ligand Organic Chemistry Infrared spectroscopy Crystal structure Triclinic crystal system 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Inorganic Chemistry Crystallography chemistry.chemical_compound 1 3 5-Triazine Molecule Single crystal Ternary complex Spectroscopy |
| Zdroj: | Journal of Molecular Structure. 1193:151-157 |
| ISSN: | 0022-2860 |
| DOI: | 10.1016/j.molstruc.2019.05.008 |
| Popis: | Two neodymium β-diketonates metal-organic complexes, Nd(TTA)3TPTZ (1) and Nd(BFA)3TPTZ (2), have been synthesized by using two β-diketone ligands 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione (HTTA) and 4,4,4-trifluoro-1-phenyl-1,3-butanedione (HFBA), and a macrocyclic conjugate ligand, 2,4,6-tri(2-pyridyl)-1,3,5-triazine (TPTZ). The crystal structures of these two complexes were determined by single crystal X-ray diffraction. The X-ray diffraction analysis showed that each neodymium ion in the two complexes formed a Nine-Coordinated structure with six oxygen atoms of HTTA (or HBFA) ligands and three nitrogen atoms of TPTZ ligand by the characteristic of triclinic with P 1 ( — ) space group both. In the crystal structure of the two complexes, a very obvious aromatic donor-acceptor interaction can be observed between adjacent TPTZ ligand molecules, which play an important role in the formation of three-dimensional structures. The complexes were also characterized by infrared spectroscopy, elemental analysis, thermogravimetric and fluorescence spectra. Fluorescence analysis showed that the two complexes exhibited characteristic neodymium-centered emission due to the significant antenna effect of these ligands. |
| Databáze: | OpenAIRE |
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