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Future Journal of Pharmaceutical Sciences

Table 3 Electronic spectral data of the salt and complexes

From: Mono and binuclear cobalt(II) mixed ligand complexes containing 1,10-phenanthroline and adenine using 1,3-diaminopropane as a spacer: synthesis, characterization, and antibacterial activity investigations

Compounds

Absorption bands (cm−1)

Tentative assignments

L1

43,103; 37,878

π–π; n → π*

L2

-

-

L3

34,602

n → π*

[Co(L1)2(H2O)2]Cl2

44,052; 37,313; 22,624; 15,748; 13,440

π → π*; n → π*; 4T1g(F) → 4T1g(P); 4T1g(F) → 4A2g(F); 4T1g(F) → 4T2g(F)

[Co(L1)2(L2)(H2O)]Cl2

43,103; 37,174; 22,371; 15,948; 13,280

π → π*; n → π*; 4T1g(F) → 4T1g(P); 4T1g(F) → 4A2g(F); 4T1g(F) → 4T2g(F)

[Co2(L1)4(L2)2(L3)] Cl4

44,052; 36,764; 21,929; 18,518; 13,642

π → π*; n → π*; 4T1g(F) → 4T1g(P); 4T1g(F) → 4A2g(F); 4T1g(F) → 4T2g(F)

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