Abstract
In the anion of the title compound, (C5H6N)[Dy(C5H4F3O2)4], the central metal ion, Dy3+, is coordinated by four bidentate 1,1,1-trifluoropentane-2,4-dionate (TAA) ligands, forming an approximate square-antiprismatic configuration. The pyridinium cation is connected to the complex ion by an N—H⋯O hydrogen bond and electrostatic interactions in the crystal. There are two kinds of disorder in the structure, one involving rotational disorder of a CF3 group [occupancy ratio 0.560 (15):0.440 (15)] and the other involving an exchange between a CF3 group and CH3 group within a given bidentate ligand (occupancy ratio 0.64:0.36).
Highlights
1,1,1-trifluoropentane-2,4-dionate (TAA) ligands, forming an approximate square-antiprismatic configuration
The pyridinium cation is connected to the complex ion by an N—H O
0.560 (15):0.440 (15)] and the other involving an exchange between a CF3 group and CH3 group within a given bidentate ligand
Summary
Yan Wang,a,b* Yuekui Wang,b Jie Jia,b Xiaoli Gaob and Xiaoling Sub a Department of Chemistry & Chemical Engineering, Luliang University, Lvliang. Key indicators: single-crystal X-ray study; T = 298 K; mean (C–C) = 0.013 Å; disorder in main residue; R factor = 0.050; wR factor = 0.121; data-to-parameter ratio = 11.7. In the anion of the title compound, (C5H6N)[Dy(C5H4F3O2)4], the central metal ion, Dy3+, is coordinated by four bidentate. 1,1,1-trifluoropentane-2,4-dionate (TAA) ligands, forming an approximate square-antiprismatic configuration. The pyridinium cation is connected to the complex ion by an N—H O hydrogen bond and electrostatic interactions in the crystal. There are two kinds of disorder in the structure, one involving rotational disorder of a CF3 group [occupancy ratio. 0.560 (15):0.440 (15)] and the other involving an exchange between a CF3 group and CH3 group within a given bidentate ligand (occupancy ratio 0.64:0.36)
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