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. 2024 Sep 12;10(18):e37849. doi: 10.1016/j.heliyon.2024.e37849

Table 2.

UV spectra data and molar conductivity for(met) and mixed ligand complexes.

Compounds λ (nm) ABS Wave number
) (cm−1
Єmax
(L.mol−1.cm−1)
Assignments Molar conductivityΛm.cm2.Mol−1 10−3M in DMSO μeff (B.M)
Metformin. HCl (Met) 260 0.539 38462 539 π–π∗
369 0.040 27100 40 n–π∗
Azo dye ligand (L) 263 1.207 38022 1207 π–π∗
312 0.858 32051 858 π–π∗
386 1.919 25907 1919 n–π∗
[Co(L)(Met)(H2O)2]Cl 265 0.883 37736 883 intra ligand 60.2 4.86
386 0.807 25907 807 C.T
543 0.023 18416 23 4T1g(F)4T1g(P)
[Ni(L)(Met)(H2O)2]Cl 266 1.363 37594 1363 intra ligand 53.1 2.88
390 1.687 25641 1687 C.T
520 0.024 19230 24 3A2g3T1g(P)
[Cu(L)(Met)(H2O)2]Cl 263 0.659 38023 659 intra ligand 74.3 1.71
388 0.548 25773 548 C.T
580 0.011 10163 11 2Eg2T2g
[Cd(L)(Met)(H2O)2]Cl 264 0.645 37879 645 intra ligand 52.8 Dia
391 1.378 25575 1378 C.T.
527 0.520 18975 520 MLCT