A series of low-spin ruthenium(III) complexes of the type [RuX(EPh3)(LL')] (X = Cl, Br; E = P, As; LL' = Salen, Salpn and Saldien) have been synthesised by reacting [RuCl3(PPh3)3], [RuCl3(AsPh3)3], [RuBr3(AsPh3)3] or [RuBr3(PPh3)2(MeOH)] with tetradentate Schiff bases such as bis(salicylaldehyde)ethylenediimine (H2-Salen), bis(salicylaldehyde)propylenediimine (H2-Salpn) and bis(salicylaldehyde)diethylenetriimine (H2-Saldien). All complexes have been characterized by elemental analyses, IR and electronic spectra, EPR, magnetic moment and cyclic voltammetric data.
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Ramesh et al. (1996) studied this question.
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