Similarly for Yb(III), following the Boltzmann population analysis, we have added three [MMI] + cations around the two most abundant Yb 68CN-2 and Yb 69CN-2 complexes, giving rise to Yb 6-MMI8CN-2 and Yb 6-MMI9CN-2 complexes (Figure ). Similar to the Nd(III)-MMI complexes, here also, we have noticed a slight increase in the Yb-F distances after the addition of the [MMI] + cation. In terms of 𝐵𝐵𝐵𝐵 𝑀𝑀𝑀𝑀𝑀𝑀 + (Table ), it is evident that in the RTIL medium, the Yb 6-MMI8CN-2 complex has ~4.0 kcal/mol greater 𝐵𝐵𝐵𝐵 𝑀𝑀𝑀𝑀𝑀𝑀 + than Yb 6-MMI9CN-2.