Synthesis, Spectroscopic, and Thermal Investigations of Metal Complexes with Mefenamic Acid

Table 2

Principal IR bands (cm⁻¹) for carboxylate group in investigated complexes.

Compound
Na(mef)	1580,0	1380,0	200,0
Mn(mef)2·3H2O	1577,7	1393,6	184,1
Co(mef)2·2H2O	1577,7	1392,5	185,2
Ni(mef)2·2H2O	1577,7	1390,6	187,1
Cu(mef)2·2H2O	1577,7	1392,5	185,2
Zn(mef)2·2H2O	1575,7	1386,7	189,0
Cd(mef)2·2H2O	1575,7	1396,4	178,7