A spectroelectrochemical study of lanthanide (Yb, Sm, Eu) dichlorides in alkali metal chloride melts

The Coordination Chemistry of f‐Block Elements in Molten Salts

“…Its ϵ was determined to be 1646 L ⋅ mol −1 ⋅ cm −1 and 1130 L ⋅ mol −1 ⋅ cm −1 by Yun and Uehara, respectively [12,43] . Moreover, Volkovich and co‐workers found that this absorption band was shifted to longer wavelengths with increasing concentration of Eu(II) and when Eu(II) concentration was reached 0.0658 mol ⋅ L −1 , a new band at around 450 nm started to appear [44] . Sm(II) exhibits 4f–5d absorption bands at about 380 nm and 530 nm with ϵ of 1470 L ⋅ mol −1 ⋅ cm −1 and 810 L ⋅ mol −1 ⋅ cm −1 , respectively [45] .…”