Spectral Characterization and 3D Molecular Modeling Studies of Metal Complexes Involving the O, N-Donor Environment of Quinazoline-4(3H)-one Schiff Base and Their Biological Studies

Table 1

Elemental analysis, magnetic susceptibility, and molar conductance data of ligand HNMAMQ and its complexes.

Compounds	Mol. wt. (g/mol)	Color	Mp. (°C)	Elemental analysis found and calculated %					M : L	𝜇eff (BM)	Λ𝑚^∗
				C	H	N	M	Cl
C20H15N3O2 (HNMAMQ)	329.35	Brown	270	72.24 (72.94)	4.12 (4.59)	11.97 (12.76)	—	—	—	—	—
[Cu(C20H14N3O2)2]	720.23	Green	292	65.96 (66.70)	3.38 (3.92)	11.12 (11.67)	8.35 (8.82)	—	1 : 2	1.82	20.10
[Ni(C20H14N3O2)2]	715.38	Light green	285	66.78 (67.16)	3.11 (3.92)	11.28 (11.75)	7.86 (8.20)	—	1 : 2	3.42	12.54
[Co(C20H14N3O2)2]	715.62	Pink	283	66.70 (67.13)	3.37 (3.94)	11.14 (11.74)	7.75 (8.24)	—	1 : 2	4.47	10.75
[Mn(C20H14N3O2)2]	711.63	Grey	287	67.02 (67.51)	3.45 (3.97)	11.27 (11.81)	7.18 (7.72)	—	1 : 2	5.81	13.32
[Zn(C20H14N3O2)Cl]	429.21	White	285	55.67 (55.97)	2.96 (3.29)	9.20 (9.79)	14.98 (15.24)	7.92 (8.26)	1 : 1	Diam	15.52
[Cd(C20H14N3O2)Cl]	476.21	Pink	290	50.27 (50.44)	2.76 (2.96)	8.60 (8.82)	23.52 (23.61)	7.22 (7.44)	1 : 1	Diam	9.20

∗Molar conductance values in Ohm⁻¹ cm² mol⁻¹.