Abstract. The dicyanamide-bridged polymers with Schiff-base ligand, [CoNaL(dca)] n (1) and [Mn 2 L(dca) 2 ] n (2) [H 2 L = bis(3-methoxysalicylidene)benzene-1,2-diamine, dca = dicyanamide] were synthesized and characterized by elemental analyses, IR spectrroscopy and single-crystal X-ray diffraction. The solid-state structures reveal that polymer 1 has double dca bridged loop-like 1D chains, in which the heterodinu-
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