Two manganese(II) coordination polymers driven by (iso)nicotinoyl-hydrazone blocks and pseudohalide ancillary ligands: syntheses, structural features, and magnetic properties

摘要: AbstractTwo coordination polymers, [Mn2(μ-L1)2(μ-N3)2]n (1) and [Mn(μ-HL2)(SCN)2]n (2), were assembled in a single-pot from MnCl2·4H2O, HL1 (2-acetylpyridine isonicotinoylhydrazone) or HL2 nicotinoylhydrazone) ancillary ligand sources (NaN3 NH4NCS). The products fully characterized, including by single-crystal X-ray diffraction, which revealed 2-D metal–organic layer 1 1-D zigzag chain 2. Both 2 are constructed six-coordinate Mn(II) nodes that adopt distorted octahedral (MnN5O) environments; the adjacent driven μ-L1 μ-N3 linkers μ-HL2 to form different networks. Their topological classification was performed, disclosing hcb 2C1 topology 2, respectively. Different weak non-covalent interactions promote dimensionality extension. Variable-temperature magnetic susceptibility measurements carried out, revealing ferromagnetic antiferromagnetic in...