Development of luminescent Sm(III) chelates containing hexadentate to nonadentate ligands: synthesis, photophysical properties and coupling to biomolecules

Polynuclear SmIII Polyamidoamine‐Based Dendrimer: A Single Probe for Combined Visible and Near‐Infrared Live‐Cell Imaging

“…Lanthanide‐centered quantum yields of Sm III ‐G3P‐2,3Nap DMSO solutions upon 320–340 nm excitation are 2.2(2)×10 −2 % and 8.5(5)×10 −4 % for the visible ( 4 G 5/2 → 6 H J ) and for the NIR ( 4 G 5/2 → 6 F J ) emission bands, respectively. The luminescence lifetime of the sensitized 4 G 5/2 pathway of Sm III ‐G3P‐2,3Nap DMSO solutions is 15.1(6) μs, which is comparable to values reported for other Sm III complexes 5a…”

Two Series of Lanthanide Coordination Polymers and Complexes with 4′‐Phenylterpyridine and their Luminescence Properties

“…for Eu 3+ showing lifetimes > 1 ms and significant quantum yields in the solid state > 50 % ( 2‐Eu : 1410(1) µs, 55.2(7) %), while for Tb 3+ , lifetimes and quantum yields in combination with sensitizers of equal energy range as ptpy are typically lower than for Eu 3+[10,11,28] ( 2‐Tb : 349(3) µs, 12.8(3) %). For 2‐Sm , the luminescence lifetime is shorter (33.82(3) µs, QY <1 %) and well in the range of other complexes of Sm 3+ . Quantum yields of the Dy 3+ , Pr 3+ , Ho 3+ , and Tm 3+ products obtained could not be determined reliably due to low intensity of emission in the visible, and of Nd 3+ and Yb 3+ products due to emission in the NIR.…”

A Single Sensitizer for the Excitation of Visible and NIR Lanthanide Emitters in Water with High Quantum Yields

“…[15] Thus, all these complexes show potential for multiplexing applications, as they can all be excited with the same wavelength. The lifetimes are relatively long, and from both Horrocks' and Parker's corrected q equations, [16] the calculated q value is approximately zero, which suggests that there are no coordinating water molecules in the inner sphere. This is also supported by the crystal structure of Ho L .…”