Luminescence properties of europium (III) cryptates trapped in sol–gel glass

Lanthanide-Based Luminescent Hybrid Materials

“…256 Circularly polarized luminescence has been observed for [Eu(dpa) 3 ] 3-, [Eu(oda) 3 ] 3-, and [Eu(bipyO 2 ) 4 ] 3+ complexes in sol-gel glasses, where dpa ) dipicolinate, oda ) oxydiacetate, and bipyO 2 ) 2,2′-bipyridine-N,N-dioxide. 257,258 Macrocyclic 259 and cryptand ligands [260][261][262][263][264][265][266][267][268][269] also provide a well-shielded environment for luminescent lanthanide ions in sol-gel glasses. An unusual complex for incorporation in silica sol-gel glasses is the terbium(III) complex of 3,6-bis[(4′-carboxyphenoxy)methyl]-1,2,4,5-tetramethylbenzene (H 2 BCM), Tb 2 (BCM) 3 (Figure 7).…”

“…The fact that silica sol−gel glasses doped with terbium(III) picolinate could be coated on glass fibers illustrated that coating by sol−gel materials is not restricted to flat surfaces . Circularly polarized luminescence has been observed for [Eu(dpa) 3 ] 3− , [Eu(oda) 3 ] 3− , and [Eu(bipyO 2 ) 4 ] 3+ complexes in sol−gel glasses, where dpa = dipicolinate, oda = oxydiacetate, and bipyO 2 = 2,2′-bipyridine- N , N -dioxide. , Macrocyclic and cryptand ligands − also provide a well-shielded environment for luminescent lanthanide ions in sol−gel glasses. An unusual complex for incorporation in silica sol−gel glasses is the terbium(III) complex of 3,6-bis[(4′-carboxyphenoxy)methyl]-1,2,4,5-tetramethylbenzene (H 2 BCM), Tb 2 (BCM) 3 (Figure ) .…”

Biomimetic synthesis of chiral erbium-doped silver/peptide/silica core-shell nanoparticles (ESPN)

“…43,[48][49][50] This work has been complemented by theoretical efforts to understand the physics of the energy transfer between silver nanoparticles and erbium, [51][52][53] similar to other lanthanides. 54 Finally, complexation with organic ligands and incorporation into xerogels 55,56 or biological materials [57][58][59] has also been explored.…”