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Synthesis and Characterization of Iron(II) Complexes with a BPMEN‐Type Ligand Bearing π‐Accepting Nitro Groups
Author(s) -
Bohn Antoine,
SénéchalDavid Katell,
Vanoutryve Jonathan,
Guillot Régis,
Rivière Eric,
Banse Frédéric
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700226
Subject(s) - chemistry , ligand (biochemistry) , pyridine , nitro , diamine , electrochemistry , medicinal chemistry , redox , metal , stereochemistry , polymer chemistry , inorganic chemistry , organic chemistry , electrode , receptor , biochemistry , alkyl
In this paper, we describe the synthesis, characterization, and stability studies of new Fe II complexes prepared with the ligand N , N′ ‐dimethyl‐ N , N′ ‐bis(4‐nitropyridin‐2‐ylmethyl)ethane‐1,2‐diamine ( L 4 2 NO 2 ). The properties of these complexes were probed by magnetic, spectroscopic, and electrochemical techniques and compared with those of the parent complexes prepared with the unsubstituted ligand N , N′ ‐dimethyl‐ N , N′ ‐bis(pyridin‐2‐ylmethyl)ethane‐1,2‐diamine (BPMEN or L 4 2 ). The para functionalization of the pyridine moieties with π‐accepting nitro groups increases the ligand‐field strength and the Lewis acidity of the metal center without altering the stability of the complex.