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New Chelating Nitroxide Free Radical Ligands For Heterospin‐Magnetic Engineering
Author(s) -
Vostrikova Kira E.,
Belorizky Elie,
Pécaut Jacques,
Rey Paul
Publication year - 1999
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/(sici)1099-0682(199907)1999:7<1181::aid-ejic1181>3.0.co;2-x
Subject(s) - chemistry , nitroxide mediated radical polymerization , piperazine , chelation , ethylenediamine , derivative (finance) , tris , polymer chemistry , combinatorial chemistry , stereochemistry , organic chemistry , radical polymerization , polymer , monomer , biochemistry , financial economics , economics
Polychelating nitroxide ligands derived from N ‐methyl‐ethylenediamine and piperazine have been prepared by reactions of 2‐bromomethyl nitronyl nitroxide with the corresponding polyamines. Two of these ligands have been structurally and magnetically characterized, along with some of their transition metal complexes, the magnetic properties of which are compared to those of previously reported related species. In particular, the properties of a nickel(II) derivative of a pentadentate tris(nitroxide), the ground spin‐state of which is a quadruplet, are discussed in detail.