Syntheses, Characterization, and Biological Activities of Metal Complexes of N-(2-Carbamoylthienyl)-C-(3′-carboxy-2′-hydroxyphenyl) Azetidin-2-one with Some Di-, Tetra-, and Hexavalent Metal Ions

Table 2

IR, reflectance spectral data (cm⁻¹), and magnetic moments of coordination compounds of I.

Compound	𝜈as(COO)	𝜈𝑠(COO)	𝜈(C–O); (phenolic)	𝜈(C–N); (β-lactam)	𝜈(C=O); (amide)	𝜈(C–O); (enolic)	𝜈(C–O); (MeOH)	𝜈max	Mag. moment; (B.M.)
LH3 (I)	—	—	1536	1414	1660	—	—	—	Diamagnetic
[Co(LH)(MeOH)]2	1580	1365	1556	1385	—	1255	975	9260, 13220, 19280	4.86
[Cu(LH)]2	1580	1350	1565	1375	1635	—	—	18100	1.55
[Zn(LH)(MeOH)2]	1580	1375	1544	1390	1660	—	960	—	Diamagnetic
[Zr(OH)2(LH)(MeOH)]	1555	1350	1546	1385	1660	—	985	—	Diamagnetic
[MoO2(LH)(MeOH)2]	1570	1355	1545	1382	—	1240	965	—	Diamagnetic