Research Article

Synthesis, Structural, and Antimicrobial Studies of Some New Coordination Compounds of Palladium(II) with Azomethines Derived from Amino Acids

Table 6

1H NMR spectral data of the ligands and their corresponding Pd(II) complexes.

CompoundChemical shift in (  ppm)
COOHN–CH–C–CH2–C(CH 3)N––CH–CH 3H3C–CH–CH3Aromatic protons

L1H11.52 (s)4.22 (s)1.83 (s)(6.98–8.20) (m)
Pd(L1)24.26 (s)1.95 (s)(6.92–8.12) (m)
L2H11.68 (s)4.48 (q)1.90 (s)1.48 (d)(6.88–8.15) (m)
Pd(L2)24.68 (q)1.98 (s)1.50 (d)(6.82–8.10) (m)
L3H11.54 (s)4.10 (d)1.94 (s)1.07 (d)2.39 (m)(6.95–8.15) (m)
Pd(L3)24.16 (d)1.99 (s)1.10 (d)2.41 (m)(6.85–8.10) (m)
L4H11.48 (s)4.49 (t)1.56 (q)1.87 (s)1.07 (d)0.98 (m)(6.92–8.12) (m)
Pd(L4)24.54 (t)1.57 (q)1.94 (s)1.09 (d)1.01 (m)(6.84–8.12) (m)
L5H11.56 (s)4.24 (s)1.85 (s)(6.98–8.15) (m)
Pd(L5)24.26 (s)1.93 (s)(6.95–8.15) (m)
L6H11.65 (s)4.53 (q)1.92 (s)1.47 (d)(6.95–8.25) (m)
Pd(L6)24.75 (q)1.99 (s)1.51 (d)(6.85–8.15) (m)
L7H11.59 (s)4.12 (d)1.91 (s)1.07 (d)2.38 (m)(6.95–8.20) (m)
Pd(L7)24.16 (d)1.97 (s)1.10 (d)2.42 (m)(6.80–8.05) (m)
Pd(L8)24.55 (t)1.58 (q)1.96 (s)1.10 (d)1.03 (m)(6.80–8.10) (m)