Synthesis Characterization and Biological Activity Study of New Schiff and Mannich Bases and Some Metal Complexes Derived from Isatin and Dithiooxamide

Table 5

Antibacterial activities of the Schiff and Mannich bases and some selected metal complexes showing inhibition zones in diameters (mm).

Entry	Compound	Proteus mirabilis		Escherichia coli		Staphylococcus aureus
1	SBH	19	++	30	+++	29	+++
2	LIH	32	++++	48	+++++	43	+++++
3	Co(II) (C2)	—	—	—	—	—	—
4	Pd(II) (C5)	—	—	8	—	9	—
5	Ir(III) (C6)	—	—	10	—	9	—
6	Pt(IV) (C7)	38	+++++	39	+++++	44	+++++
7	LIIH	9	—	9	—	12	—
8	Co(II) (C8)	9	—	8	—	15	+
9	Pd(II) (C10)	38	+++++	39	+++++	44	+++++
10	Cd(II) (C12)	9	—	8	—	15	+
11	ceftriaxone	28	+++	30	+++	36	++++