2,4-Dichlorophenoxyacetic Acid Derived Schiff Base and Its Lanthanide(III) Complexes: Synthesis, Characterization, Spectroscopic Studies, and Plant Growth Activity
Table 1
Elemental analysis and molar conductivity measurements.
Compounds
Color
Calculated (found)*
C
H
N
M
Molar conductance**
HL
White
51.40 (51.42)
3.55 (3.56)
7.05 (6.98)
—
—
La(L)3·2H2O
Yellow
44.82 (44.81)
3.39 (3.39)
6.15 (6.13)
10.16 (10.56)
5.2
Pr(L)3·2H2O
Yellow
44.76 (44.75)
3.39 (3.40)
6.14 (6.13)
10.30 (10.35)
7.8
Nd(L)3·3H2O
Light pink
44.17 (44.68)
3.27 (3.26)
6.06 (6.10)
10.40 (11.03)
6.3
Sm(L)3·2H2O
Yellow
44.45 (44.42)
3.36 (3.37)
6.10 (6.11)
10.91 (11.12)
9.8
Eu(L)3·2H2O
Yellow
44.40 (44.43)
3.36 (3.35)
6.09 (6.10)
11.01 (10.08)
7.1
Gd(L)3·3H2O
Off white
43.76 (43.69)
3.24 (3.26)
6.00 (6.03)
11.23 (11.56)
4.6
Dy(L)3·3H2O
Yellow
43.59 (43.55)
3.23 (3.22)
5.98 (6.05)
11.56 (12.05)
8.5
Y(L)3·2H2O
Yellow
46.53 (46.31)
3.52 (3.53)
6.38 (6.39)
06.75 (06.86)
4.5
The values in the parenthesis are calculated ones. Ohm−1 cm2 mol−1.
