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Synthesis and magnetic properties of copper (II)‐lanthanoid (III) binuclear complexes with N, N′ ‐bis(3‐aminopropyl) oxamido ligand
Author(s) -
Li YanTuan,
Jiang ZongHui,
Liao DaiZeng,
Yan ShiPing,
Ma ShuLin,
Wang GenLin
Publication year - 1994
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.19940120504
Subject(s) - chemistry , antiferromagnetism , crystallography , copper , lanthanide , ligand (biochemistry) , magnetic susceptibility , ion , stereochemistry , inorganic chemistry , condensed matter physics , organic chemistry , biochemistry , physics , receptor
Abstract Six novel μ‐oxamido binuclear complexes, namely Cu(axpn)Ln(L) 2 (ClO 4 ) 3 (Ln: Eu, Gd, Tb, Nd, Ho, Er), where oxpn is N,N' ‐bis(3‐aminopropyl) oxamido, L denotes 5‐nitro,10‐phenanthroline (abbreviated as NO 2 ‐phen), have been synthesized and characterised. The magnetic susceptibility of complexes Cu(oxpn)Gd(NO 2 ‐phen)2(ClO 4 ) 3 .2H 2 O was measured over the 4–300 K and the observed data were successfully simulated by equation based on spin Hamiltonian operator (H = ‐2J 1 · S 2 ), giving the exchange integral J (Cu‐Gd)=‐1.62 cm −1 . This indicates a weak antiferromagnetic interaction between the Cu(II) and Gd(III) ions.