Premium
Copper(II)‐lanthanoid(III)‐copper(II) trinuclear complexes with N,N′ ‐bis(2‐aminopropyl)‐oxamido ligand
Author(s) -
Liao DaiZheng,
Li LiCun,
Wang GengLin
Publication year - 1991
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19910090505
Subject(s) - chemistry , copper , crystallography , lanthanide , ligand (biochemistry) , ferromagnetism , magnetic susceptibility , ion , inorganic chemistry , stereochemistry , organic chemistry , receptor , condensed matter physics , biochemistry , physics
Six novel μ‐oxamido trinuclear complexes, namely Cu 2 (oxap) 2 Ln(ClO 4 ) 3 (Ln: La, Pr, Nd, Gd, Yb, Ho), where oxap is N,N′ ‐bis(2‐aminopropyl)oxamido, have been synthesized. The complex Cu 2 (oxap) 2 Gd(ClO 4 ) 3 was characterized with variable temperature magnetic susceptibility (4—300 K). The exchange integrals J (Cu—Gd) and J′ (Cu–Cu) were found to be 0.83 cm −1 and −1.62 cm −1 , indicating that very weakly ferromagnetic spin‐exchange interaction operates between Cu(II) and Gd (III) ions.