Chelating agents for radiolanthanides: Applications to imaging and therapy

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

“…7 F 2 Eu 3 + transition was observedi n[ Eu(pip) 3 (phen)] when compared to lanthanum-doped europiumc ompounds. [67] Furthermore,e mission intensity enhancement was induced by symmetry lowering in heterometallic TbÀPt complex ([Tb 2 Pt 3 (SAc) 12 (H 2 O) 2 ]). [68] In contrast to these studies, the here observed polymorph-specific spectralf eatureso f1-3 cannot be ascribed to the introduction of guest ions or external forces, thus their origin must be related to the complexes' intrinsic crystal structures.…”

“…[1][2][3][4][5][6][7][8][9][10] Most of these studies focusingo nc orrelations between crystal packing, polymorphism,a nd optical properties are foundw ithin the field of p-conjugated materials foro ptoelectronicd evices, that is, organic light-emitting diodes (OLEDs), organic thin-filmt ransistors, waveguides,r esonators or solar devices.A lternatively, photoluminescent lanthanide (Ln)-based molecules and materials are highly attractive candidates for opto-magnetic applications spanning the broad range from optical sensors, biomedical probesa nd contrast agents to waveguides, and single-molecule magnets, to name af ew. [11][12][13][14][15][16][17][18][19][20][21][22][23] While significant effect of crystal packing on the optical properties of Ln 3 + -based materials has been shown for coordi-nationp olymers and metal-organicframeworks (MOFs), surprisinglyt his has not yet been exploited in molecular species that exhibit polymorphism. [24][25][26][27][28][29] It has been demonstrated that the ligand sphereo ft he Ln 3 + centers plays an important role with respect to molecular geometry and arrangement ultimately influencing the photoluminescence (PL) behavior.…”

Synthesis, Characterization, and Structural Comparisons of the First Neodymium(III) Sulfite‐Acetate Crystal Structure

“…The lanthanide elements have been of increasing interest owing to their unique properties and applications Lanthanide carboxylates have been widely studied due to their ability to have a wide variation in coordination modes, potential stereochemistry and the capability of being a useful starting material for the above applications. In particular, many structures of simple and complex lanthanide carboxylates, specifically acetates, have been isolated .…”

Separation of samarium and europium by solvent extraction with an undiluted quaternary ammonium ionic liquid: towards high-purity medical samarium-153

“…Undiluted ionic liquids are highly viscous at room temperature. This is also the case for quaternary ammonium ionic liquids containing long carbon chains, like [A336] [NO 3 ]. This high viscosity implies a more difficult mass transfer, leading to reduced extraction speed.…”