Synthesis, Spectral, Thermogravimetric, XRD, Molecular Modelling and Potential Antibacterial Studies of Dimeric Complexes with Bis Bidentate ON–NO Donor Azo Dye Ligands

Table 2

Infrared spectra of the ligand and the complexes in cm⁻¹.

Compounds	ν(C–O)  (phenolic)/𝜈(C–O) (enolic)	𝜈(C–N)/ν(C=O)	𝜈(M–O)	𝜈(M–N)
LH2	1148	1407	—	—
L′H2	1263	1668	—	—
[Co2LCl2(H2O)6]	1133	1324	508	450
[Co2L′Cl2(H2O)6]	1240	1648	514	460
[Ni2LCl2(H2O)6]	1135	1325	510	452
[Ni2L′Cl2(H2O)6]	1243	1645	513	455
[Cu2LCl2(H2O)6]	1135	1330	510	450
[Cu2L′Cl2(H2O)6]	1233	1643	512	458
[Zn2LCl2(H2O)2]	1134	1325	508	452
[Zn2L′Cl2(H2O)2]	1235	1645	511	457
[Cd2LCl2(H2O)2]	1133	1324	510	450
[Cd2L′Cl2(H2O)2]	1240	1640	514	455
[Hg2LCl2(H2O)2]	1135	1330	508	452
[Hg2L′Cl2(H2O)2]	1245	1642	510	460