Complexation of Oxovanadium(IV) and Dioxouranium(VI) with Synthesized 1,2-(Diimino-4′-antipyrinyl)-1,2-diphenylethane Schiff Base: A Thermodynamic, Kinetic, and Bioactivity Investigation
Table 2
Characterization of Schiff base complexes.
Compound (formula)
Elemental analysis
Melting point
IR absorption (cm−1)
% C
% H
% N
(°C)
νC=O
νC=N
νM–N
νM–O
(nm)
(Ω−1cm2mol−1)
C36H32N6O2 DE
72.86 (74.54)
5.40 (5.51)
12.77 (14.48)
179–185
1655 (vs)
1635 (vs)
—
—
410
20.0
VO-(DE)SO4
52.7 (53.07)
3.85 (3.93)
10.08 (10.32)
220–225
1630 (s)
1600 (ms)
400 (m)
540 (m)
502
160.6
UO2(DE)
51.06 (52.98)
4.98 (4.23)
10.52 (11.32)
290–300
1632 (s)
1615 (ms)
410 (m)
570 (m)
480
172.8
vs: very strong; s: strong; ms: medium to strong; m: medium.
