Synthesis and Spectral Characterization of Praseodymium(III) Complex with New Amino Acid-Based Azo Dye

Table 3

Proton magnetic resonance data (chemical shift δ in ppm) of L1, L2, and Pr(III) complex.

Ligands/complexes	Ha, Hp	Hb	Hc	Hd	Hd, Hs, Ht	He–Hh
L1	2.47	5.34–5.51	5.97–7.19	5.34–5.51	3.06–3.80
L2						7.63–9.19
Pr	2.59	5.80–5.96	6.42–7.61	3.443	3.12–3.80	9.71