Lability of spin state of Fe(III) complexes with tetradentate Schiff’s bases

[FeLX 2 ]Y [L = N,N '-ethylenebis(salicylimine) (salen), N,N '-ethylenebis(acetylacetonylimine) (acen), or N,N '-ethylenebis(3-methyloxysalicylimine) (vanen); X = imidazole or N -methylimidazole; Y = BF 4 , ClO 4 , or BPh 4 ] compounds have been prepared and studied by means of EPR an...

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Bibliographic Details
Published in:Russian journal of general chemistry 2016-07, Vol.86 (7), p.1647-1652
Main Authors: Ivanova, T. A., Mingalieva, L. V., Ovchinnikov, I. V., Turanova, O. A., Ivanova, G. I., Gilmutdinov, I. F.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Electron spin
Imidazole
Magnetic permeability
Magnetic properties
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Summary:[FeLX 2 ]Y [L = N,N '-ethylenebis(salicylimine) (salen), N,N '-ethylenebis(acetylacetonylimine) (acen), or N,N '-ethylenebis(3-methyloxysalicylimine) (vanen); X = imidazole or N -methylimidazole; Y = BF 4 , ClO 4 , or BPh 4 ] compounds have been prepared and studied by means of EPR and magnetic susceptibility measurements at 5–300 K. It has been shown that the different electron-donating properties of acen and salen planar ligands result in different spin states of Fe(III) ions. Intermolecular π-interactions of the outer-sphere BPh 4 ion affect the complexes spin state as well.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363216070197