Influence of fluorinated chain length on luminescent properties of Eu3+ β-diketonate complexes

Probing Optical Anisotropy and Polymorph‐Dependent Photoluminescence in [Ln2] Complexes by Hyperspectral Imaging on Single Crystals

“…This minimizes re‐absorption of light during propagation across the crystals, ultimately leading to waveguiding performance . With respect to potential mechanisms for inter‐ and intramolecular energy transfer, radiative as well as non‐radiative pathways have to be considered . Assessment of the Ln 3+ lifetime in a polymorph‐ and face‐specific manner is currently under consideration and is expected to provide deeper insight into the mechanisms involved.…”

“…[29,33] With respect to potential mechanisms for inter-and intramolecular energy transfer,r adiative as well as non-radiative pathways have to be considered. [33,[74][75][76] Assessment of the Ln 3 + lifetime in ap olymorphand face-specific manner is currently under considerationa nd is expected to provide deeper insight into the mechanisms involved.…”

Mono- and Mixed Metal Complexes of Eu3+, Gd3+, and Tb3+ with a Diketone, Bearing Pyrazole Moiety and CHF2-Group: Structure, Color Tuning, and Kinetics of Energy Transfer between Lanthanide Ions

“…We have recently reported unusual structural peculiarities and superb luminescent properties of lanthanide complexes with pyrazole-based 1,3-diketones, bearing perfluorinated chains of various lengths [ 23 , 39 , 40 , 41 , 42 , 43 ]. However, 1,3-diketones with pyrazole moieties and CHF 2 –groups have never been studied as ligands before.…”

Synthesis and Single Crystal Structure Characterization of Dinuclear and Polymeric Mixed‐ligand Coordination Compounds of Zinc(II) and Cadmium(II) with the Bridging Ligand 1,2‐Bis(pyridin‐4‐ylmethylene)hydrazine

“…4-bpmh has been used to generate new coordination compounds with Zn 2+ and Cd 2+ containing diverse organic ligands where β-diketones are not included. β-diketones has been found to be able to coordinate to the transition metal ions through the chelation of two oxygen atoms of the enolate anion to give tris-and tetrakis(β-diketonato) metal coordination compounds [41][42][43][44][45] The replacement of the C-H bonds with C-F, (fluorinated β-diketonates) makes the β-diketonate unit easier to coordinate with a metal ion and forming an extended conjugated system. For example, an electron-withdrawing perfluoroalkyl group reduces the electron density on the oxygen atoms of β-diketones, and the acidity of the enolic form of these β-diketones is further increased and thereby increasing the Lewis acidity of the metal center in the ensuing metal coordination compound.…”