(n-Bu4N)[Fe(cbdt)2]: Synthesis, crystal structure and magnetic characterisation og a new FE-III bisdithiolene complex
; Simão, D.
; Santos, I. C.
; Machado, A.
; Waerenborgh, J.
Henriques, R. T.
; Almeida, M.
Inorganica Chimica Acta Vol. 361, Nº 14-15, pp. 3836 - 3841, October, 2008.
ISSN (print): 0020-1693
Journal Impact Factor: 1,940 (in 2008)
Digital Object Identifier: 10.1016/j.ica.2008.02.068
The synthesis of the dithiol precursor of the new ligand 4-cyanobenzene-1,2-dithiolate (cbdt) is described. The (n-Bu4N)[Fe(cbdt)(2)] complex, was prepared and characterised by X-ray diffraction, Mossbauer spectroscopy and magnetisation measurements. The crystal structure consists in cis [Fe(cbdt)(2)]- units dimerised in a trans fashion, with Fe in a square pyramidal coordination, the dimers being well isolated from each other by the cations. The magnetic susceptibility shows that the [Fe(cbdt)(2)] units have a S = 3/2 spin configuration.