
%0 Journal Article
%A van den Bergen, A 
%A Murray, KS 
%A O'Conner, MJ 
%A West, BO 
%T N-Substituted salicylaldimine complexes of manganese(III). Synthesis, magnetism, and spectra
%J Australian Journal of Chemistry
%D 1969/01/01
%V 22
%N 1
%P 39-48
%K 
%R https://doi.org/10.1071/CH9690039
%U https://www.publish.csiro.au/paper/CH9690039 
%X Complexes of manganese(III) and N-substituted salicylaldimines have been prepared of general formulae Mn(sal-NR)3 and Nn(sal-NR)2X (X = Cl, Br, OAc). The complexes show high-spin magnetic behaviour with small deviations of the susceptibilities from the Curie law. Complexes of the type Mn(salen)X(X = Br, I) have also been studied and these show somewhat larger deviations from Curie behaviour. It is difficult to interpret this Curie-Weiss behaviour with certainty, but it can be explained for the salen derivatives, in particular, in terms of very weak antiferromagnetic interactions. The visible and near-infrared spectra for all the complexes are assigned. A Jahn-Teller splitting of the d-d transition is observed. Comparison of the i.r. spectra of the M(sal)3 derivatives (M = CrIII, MnIII, and FeIII) in the region 700-250 cm-1 has enabled assignments of the v(M-O) modes to be made. The spectra suggest that a Jahn-Teller distortion is operative in the Mn(sal)3 complex. 
