Research Article

Synthesis, Spectroscopic, and Magnetic Studies of Mono- and Polynuclear Schiff Base Metal Complexes Containing Salicylidene-Cefotaxime Ligand

Table 1

Main IR wavenumbers (cm−1).

Compoundν(C=O) ν(C=N) ν(COO) ν(COO) Δν
lactamimineasymm. sym.

Schiff base 1740 1650
Co(L) 1730 1630 1550 1340 210
Ni(L) 1730 1630 1580 1360 220
Cu(L) 1730 1630 1580 1360 220
Ag2(L)(OAc)2 1750 1640 15901380 210
Ni4(L)(OH)6 1750 1640 15801370 210
Cu4(L)(OH)6 1750 1640 15701360 210