Calculating the Equilibrium Constants for All Monoazide Lanthanide Complexes in Aqueous Solution Based on the Formation of <math xmlns:mml="http://www.w3.org/1998/Math/MathML"><msubsup><mrow><mtext>Eu(III)/N</mtext></mrow><mrow><mn>3</mn></mrow><mrow><mo>−</mo></mrow></msubsup></math>: Figure 1

Figure 1: Curve describing the formation of the

{Eu(III)/N}_{3}^{-}

system (C_Eu(III)/mol L⁻¹: ● = 28.60 × 10⁻³, ▼ = 34.32 × 10⁻³, ■ = 39.85 × 10⁻³, and ◆ = 45.18 × 10⁻³).