Ligation of Fe(III) and Mn(II) Complexes by Bithiourea and Their Biological Activity

Table 1

Analytical and spectroscopic data for Fe(III) and Mn(II)-bithiourea complexes.

Complexes	L	FeL2	MnL2
Analytical data (%)^a
C	16.00 (16.42)	6.74 (6.73)	6.17 (6.12)
H	4.00 (4.02)	1.69 (1.70)	1.54 (1.52)
N	37.33 (37.11)	15.73 (15.71)	14.39 (14.37)
S	42.67 (42.43)	17.98 (17.97)	14.39 (14.38)
M		15.73 (15.71)	14.11 (14.10)
λ ^b		8	10
IR (cm^−1)
𝜈NH	3415.05	3410.39	3411.65
𝜈C=S	1430.24	1465.12	1481.83
𝜈M--N		380.12	375.00
Electronic (nm)
	196	199	244
	241	817	616
		841
		844
𝜇eff (B.M)		5.81	5.92

^aCalculated (Found) (%), ^bλ 10⁻³ M in DMF. Ohm⁻¹cm⁻¹mol⁻¹.