Journal
MOLBANK
Volume 2022, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/M1452
Keywords
gadolinium; 1; 3-diketone; pyrazole; complexes; luminescence
Categories
Funding
- Russian Science Foundation
- [19-13-00272]
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A binuclear gadolinium (III) complex was synthesized through the reaction of GdCl3·6H2O, 4,4,4-trifluoro-1-(1-methyl-1H-pyrazol-4-yl)butane-1,3-dione and NaOH in methanol solution. The complex exhibited promising luminescent properties, making it suitable for the preparation of highly luminescent Eu3+ and Sm3+ complexes.
A binuclear gadolinium (III) complex was obtained through the interaction of GdCl3 center dot 6H(2)O, 4,4,4-trifluoro-1-(1-methyl-1H-pyrazol-4-yl)butane-1,3-dione and NaOH in MeOH solution. Molar ration of reagents equal to 1:3:3 was used. Upon recrystallization of wet 1,4-dioxane, an intermediate hydrated complex formed stable crystalline solvate with the composition [(Gd-2(L)(3)(H2O))(2)(C4H8O2)]center dot 2(C4H8O2). The structured of complex was established by single crystal XRD experiment. Furthermore, some photophysical properties of the complex were measured. Thus, the energy of the first exited triplet state for the diketonate ligand was found to be 22400 cm(-1), which makes 4,4,4-trifluoro-1-(1-methyl-1H-pyrazol-4-yl)butane-1,3-dione a promising ligand for the preparation of highly luminescent Eu3+ and Sm3+ complexes.
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