Abstract
A family of complexes were made by combining MnX2·nH2O (X = Cl, Br) with 2-amino-3-methylpyridine (3MAP), 2-amino-5-methylpyridine (5MAP) or 2-amino-5-iodopyridine (5IAP) in aqueous acidic conditions. The resulting complexes were (3MAPH)2Cl2.MnCl2(H2O)2 (1), (3MAPH)2Br2.MnBr2(H2O)2 (2), (5IAPH)8 [Mn4Cl10(H2O)8] Cl6 (3) and (5MAPH)2 MnBr4 (4). Complexes 1–3 crystalize in monoclinic space groups (1 = P21/c, 2&3 = P21/n) with chains formed by halide bridged manganese ions. Compound 4 crystalizes in the triclinic space group P-1 with a manganese halide ladder structure formed via short Br…Br contacts. Complexes 1, 2 and 4 were studied through variable temperature magnetic susceptibility measurements, all of which exhibited weak antiferromagnetic interactions (J = ~ – 0.45 to –0.05 K).
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