A rare-earth metal TCNQ magnet: synthesis, structure, and magnetic properties of [[Gd2(TCNQ)5(H2O)9][Gd(TCNQ)4-(H2O)3]].4 H2O.
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A lanthanide/organic radical based molecular magnet (Tc=3.5 K) has been prepared from a reaction of GdCl36H2O with Li[TCNQ] (TCNQ = 7,7,8,8-tetracyanoquinodimethane). The title compound was structurally characterized by single-crystal X-ray diffraction and contains distinct anionic and cationic (see picture) networks containing Gd, TCNQ, and H2O in different ratios.