The [Fe{(SePPh2)2N}2] Complex Revisited: X‐ray Crystallography, Magnetometry, High‐Frequency EPR, and Mössbauer Studies Reveal Its Tetrahedral FeIISe4 Coordination Sphere. Issue 6 (2nd February 2018)

• Record Type: Journal Article
• Authors: Ferentinos, Eleftherios; Chatziefthimiou, Spyros; Boudalis, Athanassios K.; Pissas, Michael; Mathies, Guinevere; Gast, Peter; Groenen, Edgar J. J.; Sanakis, Yiannis; Kyritsis, Panayotis
• Is Part Of: European journal of inorganic chemistry. Issue 6(2018)
• Page Start: 713
• Page End: 721
• Publication Date: 2018-02-02
• Subjects: Iron -- Selenium -- Imidodiphosphinato ligands -- Structure elucidation -- Magnetic properties; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201701459
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : The synthesis and characterization of complex [Fe{(SePPh2 )2 N}2 ] (1 ) is described. X‐ray crystallography shows that this system contains a tetrahedral FeSe4 coordination sphere. The structural features of1 are compared with those of similar first row transition element complexes, including a recently reported preparation of [Fe{(SePPh2 )2 N}2 ] (1SP ) exhibiting a highly unusual square planar FeSe4 coordination sphere. The electronic structure of1 was elucidated by magnetometry, high‐frequency EPR, and Mössbauer spectroscopic studies, which reveal zero‐field splitting (ZFS) parameters typical of high spin S = 2 tetrahedral Fe II sites. Accurate ZFS parameters ( D = +8.22 cm –1, E/D = 0.104) were obtained by analysis of the EPR spectra and compared with those of the analogous [Fe{(SPPh2 )2 N}2 ] complex. Abstract : The literature complex [Fe{(SePPh2 )2 N}2 ] was re‐investigated by X‐ray crystallography, magnetometry, high frequency EPR and Mössbauer spectroscopy, revealing its tetrahedral FeSe4 coordination sphere and determining its spin Hamiltonian parameters.