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Iron(II) and Iron(III) Complexes of Tridentate NNO Schiff Base‐like Ligands – X‐ray Structures and Magnetic Properties
Author(s) -
Dankhoff Katja,
Schneider Sandra,
Nowak René,
Weber Birgit
Publication year - 2018
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201800359
Subject(s) - schiff base , spin crossover , chemistry , crystallography , counterion , electrochemistry , inorganic chemistry , magnetic susceptibility , ion , organic chemistry , electrode
A series of new [Fe(L) 2 ] iron(II) and [Fe(L) 2 ] X iron(III) complexes is presented with varying tridentate NNO coordinating Schiff base‐like ligands (L – ) and different counterions ( X – = Cl – , Br – , I – BF 4 – , PF 6 – , and ClO 4 – ) in the case of the iron(III) complexes. The crystal structures of one iron(II) and three iron(III) complexes are discussed, as well as the magnetic properties of the complexes regarding the possibility of the observation of spin crossover. While the three iron(II) complexes are predominantly high spin, in the case of the iron(III) complexes spin crossover was observed for the majority of the complexes (10 out of 12). Additionally, the optical properties and electrochemical behavior in solution was investigated and the results are compared with related systems from literature.