Acceleration of Sm(III) → Sm(II) reduction under the combined action of the chemical reductant diisobutylaluminum hydride and UV irradiation

Solid-state and solution-phase characterization of SmII-aza[2.2.2]cryptate and its methylated analogue

“…Complexes of divalent lanthanide (Ln II ) ions have attracted attention in recent years owing to their interesting luminescence, magnetic, and electrochemical properties. 1–25 One such group of Ln II complexes that have been the subject of extensive investigation with regard to their structural, photophysical, and electrochemical properties is the Ln II -cryptates. 2,26–42 In many studies, cryptands such as 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane (222) and 5,6-benzo-4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacos-5-ene are used to encapsulate Ln II ions, 26–32,37–42 and reported Ln II -cryptates have luminescence and electrochemical properties that are useful in applications including light-emitting diodes, imaging, and catalysis.…”