Synthesis and Spectroscopic and Antimicrobial Studies of Schiff Base Metal Complexes Derived from 2-Hydroxy-3-methoxy-5-nitrobenzaldehyde

Table 1

The physical and analytical data of Schiff base ligands and their metal complexes.

Ligand or complex	Formula	M.W.	Color	Yield (%)	M.P. (°C)	found/(calcd.) BM	Elemental analysis, % found/(calcd.)
							C	H	N	M
(1) MPM	C16H16N2O4	300	Yellow	87	210	—	64.04 (63.99)	5.32 (5.37)	9.40 (9.33)	—
(2) FPM	C14H10F2N2O4	308	Reddish yellow	91	188	—	54.61 (54.55)	3.25 (3.27)	9.04 (9.09)	—
(3) [Cu(MPM)2]	C32H30CuN4O8	662	Deep blue	88	>300	1.94 (1.73)	58.00 (58.04)	4.60 (4.57)	8.52 (8.46)	9.67 (9.60)
(4) [Ni(MPM)2]	C32H30N4NiO8	657	Reddish green	85	>300	2.80 (2.82)	58.45 (58.47)	4.56 (4.60)	8.57 (8.52)	9.00 (8.93)
(5) [Cu(FPM)2]	C28H18CuF4N4O8	676	Deep blue	90	>300	1.80 (1.73)	49.53 (49.60)	2.71 (2.68)	8.30 (8.26)	9.43 (9.37)
(6) [Ni(FPM)2]	C28H18F4N4NiO8	673	Reddish green	87	>300	2.90 (2.82)	49.90 (49.96)	2.68 (2.70)	8.39 (8.32)	8.80 (8.72)