Synthesis, Characterization, and Biological Activity of N^𝟏-Methyl-2-(𝟏H-1,2,3-Benzotriazol-1-y1)-3-Oxobutan- ethioamide Complexes with Some Divalent Metal (II) Ions

Table 2

Main IR (𝜐́, cm⁻¹) bands for MBOBT and its metal(II) complexes. (𝑤 = week, 𝑚 = medium, 𝑠 = strong.)

Compound	υ(OH)	υ(NH)	υ(C=O)	υ(CH3)	υ(thioamide)
					I	II	III	IV
HL, C11H12N4SO	—	3280𝑠	1644𝑤	2947𝑤	1499𝑣𝑠	1375𝑚	1073𝑚	836𝑠
				3045𝑤
[L2Zn] ⋅ H2O, C22H24N8S2O3Zn	3433𝑚	3230𝑠	1600𝑤	2996𝑤	1497𝑚	1383𝑚	1046𝑚	720𝑚
				3073𝑤
[L2Cu], C22H22N8S2O2Cu	—	3228𝑠	1614𝑤	2927𝑤	1499𝑠	1388𝑠	1050𝑚	734𝑚
				3084𝑤
[L2], C22H22N8S2O2Ni	—	3328𝑠	1613𝑤	2929𝑤	1501𝑚	1391𝑠	1042𝑚	723𝑚
[L2Co], C22H22N8S2O2Co	—	3230𝑠	1616𝑤	2992𝑤	1496𝑚	1379𝑠	1039𝑤	718𝑚
				3072𝑤