[Retracted] Newly Synthesized Micro-Nano Transition Metal Complexes of Hexadecanoic Acid as Anti-Microbial Agents: Synthesis, Characterization, and Biological Investigations

Table 3

Vibrational spectrum data of ligand palmitic acid and metal palmitate complexes.

Palmitic acid	Manganese palmitate	Cobalt palmitate	Nickel palmitate	Copper palmitate	Zinc palmitate	Assignment
—	3437	3406	3436	3233	3429	O-H
2917; 2849	2918; 2849	2851; 2918	2954; 2918	2915; 2849	2951; 2918	C-H stretching of CH2 and CH3
1700	1691; 1567	1529	1547	1667; 1586	1538	Carbonyl and ester group
1466; 1431	1466; 1426	1467	1468; 1427	1447; 1470	1461; 1397	C-O stretching of COOH
1295; 1099	1274; 974	1109; 946	1295; 1095	1111; 915	1019; 1298	C-C (stretching)
782; 722	720	722	763; 721	717	723	C-H (bending)
—	552	462	516	472	462	M-O