Synthesis and characterisation of ruthenium(III) complexes containing dibasic tetradentate Schiff bases

Abstract

<span style="font-size:16.0pt;mso-bidi-font-size:12.0pt" lang="EN-IN">Several hexacoordinated ruthenium (III) complexes of the type [RuX(LL')(EPh₃)] (where, X=CI or Br; LL'=tetradentate Schiff bases; E=P or As) have been synthesised by the reactions of [RuX₃,(EPh₃)₃] or [RuBr₃,(PPh₃)₂MeOH)] with appropriate Schiff bases having the donor groups (O,N) viz., <i style="mso-bidi-font-style: normal">o</i>-hydroxy acetophenone ethylenediimine (<i style="mso-bidi-font-style: normal">o</i>-hyacen), <i style="mso-bidi-font-style:normal">o</i>-hydroxy acetophenone propylenediimine (<i style="mso-bidi-font-style:normal">o</i>-hyacpn), <i style="mso-bidi-font-style:normal">o</i>-hydroxy acetophenone tetramethylenediimine (<i style="mso-bidi-font-style:normal">o</i>-hyactn) and <i style="mso-bidi-font-style:normal">o</i>-hydroxy acetophenone orthophenylenediimine (<i style="mso-bidi-font-style:normal">o</i>-hyac<i style="mso-bidi-font-style: normal">o</i>pn) in 1:1 molar ratio. All the complexes have been characterised on the basis of elemental analyses and spectral (IR, electronic and EPR), electrochemical and magnetic moment data. The antibacterial activities have also been tested for these complexes.

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