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Abstract Ferromagnetic spin-coupling between Cu(II) and Gd(III) ions was observed in a binuclear Cu(II)–Gd(III) complex CuGd(fsaen)NO3·4H2O (H4fsaen = N,N′-bis(3-carboxysalicylidene)ethylenediamine). The magnetic behavior was well reproduced by the equation derived from H = −2JSCu·SGd (SCu = 1/2, SGd = 7/2) with g = 2.01 and J = +1.7 cm−1.
Matsumoto et al. (Fri,) studied this question.