Structure and photophysics of a europium dimeric system, Eu2(HFAA)2(Dipy)2(TFOAc)2(OAc)2, in the solid state and solution

Legendziewicz, J.; Cybińska, Joanna; Thompson, Larry C.; Li, Pan; Brennessel, William W.

doi:10.1016/j.jallcom.2007.04.089

Cited by 9 publications

(3 citation statements)

References 18 publications

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“…Some of these bands are clearly assigned to the vibronic structure, especially in the lesscluttered spectral regions of the 5 D 0 -7 F 2 sideband, and correspond to Raman-active modes. These conclusions are similar to those from the studies of Tsaryuk et al [20], Zolin [22], Legendziewicz et al [21].…”

Section: Tablesupporting

confidence: 91%

Luminescence and crystal-field fitting of two optical isomeric complexes of europium

Jia

Duan

et al. 2009

Journal of Luminescence

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Section: Tablesupporting

confidence: 91%

Luminescence and crystal-field fitting of two optical isomeric complexes of europium

Jia

Duan

et al. 2009

Journal of Luminescence

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“…The search of information about the molecular structure of europium complexes in the Cambridge Structural Database leads to 17 similar structures and only 12 compounds with known coordinates of atoms Biju et al, 2009;Ambili Raj et al, 2008;Legendziewicz et al, 2008;Batista et al, 1997;Chen et al, 1999;Moriguchi et al, 2000;Moser et al, 2000;Shi et al, 2013;Thompson et al, 1998;Koroteev, Dobrokhotova, Ilyukhin, Efimov, Rouziè res et al, 2016;Li et al, 2012). The analysis of the molecular packing in the crystals of these compounds reveals that the diffraction peak position in the area of 2 = 4-5 usually corresponds to the reflections from (001) and (100) crystallographic planes.…”

Section: Figurementioning

confidence: 99%

Optical and structural characteristics of PMMA films doped with a new anisometric Eu^III complex

Knyazev

Krupin

Gubaidullin

et al. 2019

Acta Crystallogr B Struct Sci Cryst Eng Mater

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A new film material capable of transforming UV radiation into visible light was obtained from a highly anisometric Eu III complex with organic ligands in a polymethylmethacrylate (PMMA) matrix and then structurally characterized. An important advantage of the synthesized complex is its good solubility in organic solvents such as dichloromethane, chloroform, THF, toluene, etc. The ligand environment (flexible alkyl and cyclohexyl substituents) of the Eu III complex was selected to prevent crystallization, to inhibit the formation of defects in the structure of films and to provide its uniform distribution in the polymer during polymerization. As a result we obtain an Eu III complex of the film with remarkable thermal behavior: the complex melts to isotropic liquid without decomposition, it supercools at ambient temperature and it forms a stable amorphous material at low (up to À30 C) temperatures. The films were prepared by two methods: bulk polymerization and spin coating. A comparison of the differences of luminescent and optical characteristics of micro-and nanosized PMMA films doped with the anisometric Eu III complex is given. Based on X-ray powder diffraction and small-angle scattering data, it has been supposed that the association of Eu III complex molecules occurs in the voids of the PMMA matrix and is accompanied by the formation of a nanocrystalline phase. For films obtained by spin coating, a deeper microphase separation is demonstrated than by bulk polymerization. The dimensional characteristics of the nano-associates were determined and a correlation between the method of preparation and the type of distribution of the Eu III complex in the PMMA matrix is established.

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“…They were structurally characterized by X-ray crystallography and their magnetic properties were determined. Also structure and photophysics of an europium dimeric system, Eu 2 (HFAA) 2 (Dipy) 2 (TFOAc) 2 (OAc) 2 , where: HFAA = b diketones, Dipy = 2,2 0 -bipyridine; TFOAc = CF 3 COO -, OAc = CH 3 COO -in the solid state and solution was investigated [15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, crystal structure and other properties of the complexes of Er(III), Yb(III) and Lu(III) with 4,4′-bipyridine and dichloroacetates

et al. 2009

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A novel mixed-ligand complexes of Er(III), Yb(III) and Lu(III) with title ligands were prepared and characterized by chemical and elemental analysis and IR spectroscopy, conductivity (in methanol, dimethyloformamide and dimethylsulphoxide). The thermal properties of complexes in the solid state were studied. The mode of metal-ligand coordination was discussed. The title compounds are isomorphic and isostructural in solid state. All atoms in studied compounds lie in general positions but occurrence of inversion on the midpoint of the bond linking two pyridine rings leads to existence in asymmetric unit one complex molecule and half of outer coordination sphere 4-bpy molecule. All chelating carboxylate groups are symmetrically bonded to the metal cations. The molecules of studied compounds are connected to the three dimensional network via O-HÁÁÁO and O-HÁÁÁN intermolecular hydrogen bonds. In the structures also exist C-HÁÁÁO, C-HÁÁÁCl weak hydrogen bonds and pÁÁÁÁp stacking interactions.

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Structure and photophysics of a europium dimeric system, Eu2(HFAA)2(Dipy)2(TFOAc)2(OAc)2, in the solid state and solution

Cited by 9 publications

References 18 publications

Luminescence and crystal-field fitting of two optical isomeric complexes of europium

Luminescence and crystal-field fitting of two optical isomeric complexes of europium

Optical and structural characteristics of PMMA films doped with a new anisometric Eu^III complex

Synthesis, crystal structure and other properties of the complexes of Er(III), Yb(III) and Lu(III) with 4,4′-bipyridine and dichloroacetates

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Structure and photophysics of a europium dimeric system, Eu2(HFAA)2(Dipy)2(TFOAc)2(OAc)2, in the solid state and solution

Cited by 9 publications

References 18 publications

Luminescence and crystal-field fitting of two optical isomeric complexes of europium

Luminescence and crystal-field fitting of two optical isomeric complexes of europium

Optical and structural characteristics of PMMA films doped with a new anisometric EuIII complex

Synthesis, crystal structure and other properties of the complexes of Er(III), Yb(III) and Lu(III) with 4,4′-bipyridine and dichloroacetates

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Optical and structural characteristics of PMMA films doped with a new anisometric Eu^III complex