Synthesis and investigation of biologically active complexes of N-alkylphenothiazines with yttrium(III)

摘要

New complexes of yttrium(III) with six N-alkylphenothiazines having the formula [Y(L)(2)(NO3)(2)]NO3, (L = N-alklylphenothiazines) have been prepared and characterized by analytical, conductance, IR, UV-visible add NMR spectral studies. Conductance studies indicate the 1:1 electrolytic behavior of the nitrate complexes. The IR spectra of the complexes show that all N-alkylphenothiazines act as bidentate ligands, the heterocyclic nitrogen and the tertiary nitrogen atom of the side chain being the sites of coordination. Only two of the nitrate group are coordinated bidentately to tile central metal ion, while the third remains uncoordinated. The fungitoxicity of the complexes against several fungi has been assayed. [References: 18]