Key points are not available for this paper at this time.
Addition of Tb3+ salts to a solution of a (YbLD) complex in D2O resulted in the formation of (YbLD)2Tbx (x = 1 to 3) complexes that, upon NIR excitation at 980 nm, showed an unprecedented Yb to Tb upconversion sensitization phenomenon resulting in the observation of the typical green emission of Tb.
Souri et al. (Tue,) studied this question.