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Synthesis, Crystal Structures, and Magnetic Properties of Two Copper(II) Radical Heterospin Complexes
Author(s) -
Gao YuanYuan,
Ma Yue,
Wang YaLi,
Tong YuZhang,
Yang MingFang,
Wang QingLun,
Li LiCun,
Liao DaiZheng
Publication year - 2013
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.201300003
Subject(s) - radical , chemistry , antiferromagnetism , supramolecular chemistry , crystallography , pyridine , copper , hydrogen bond , nitroxide mediated radical polymerization , crystal structure , magnetic susceptibility , ion , stereochemistry , molecule , medicinal chemistry , polymer , organic chemistry , physics , radical polymerization , copolymer , condensed matter physics
Two heterospin complexes [Cu(NIT3Py)(cda)H 2 O] · H 2 O ( 1 ) and [Cu(NIT2Py)(cda)H 2 O] · H 2 O · CH 3 OH ( 2 ) with Cu II ions and pyridyl‐substituted nitronyl nitroxide radicals (NIT x Py = 2‐( x ′‐pyridyl)‐4,4,5,5‐tetramethyl‐imidazoline‐1‐oxyl‐3‐oxide, x = 3, 2; H 2 cda = 4‐hydroxy‐pyridine‐2,6‐dicarboxylic acid) were synthesized and characterized structurally and magnetically. The single crystal structures show that the two complexes are both two‐spin complexes, in which the different radicals make the two complexes have different hydrogen bonding interactions to form 2D and 1D supramolecular network for complexes 1 and 2 , respectively. The magnetic measurements indicate that complexes 1 and 2 both exhibit antiferromagnetic interactions between Cu II and radicals.