Synthesis, crystal structures, and magnetic properties of two Cu (II)-complexes based on in situ generated 5-NO2-2-hydroxyisophthalic acid

Two Cu(II)-complexes, {[Cu2(O2N-ipO)2(H2O)2]·(H2dpa)}n (1) and [Cu3(O2N-ipO)2(btb)]n (2) (O2N-ipO = deprotonated 5-NO2-2-hydroxylisophthalic acid, H2dpa = protonated dipyridin-4-ylamine and btb = 1,3-bis(1,2,4-triazol-l-yl)butane), were synthesized from an in situ generated 5-NO2-2-hydroxylisophthalic acid and characterized by elemental analysis, FT-IR, single-crystal X-ray diffraction, PXRD, and TGA techniques. Complex 1 exhibits a 3-D alternate supramolecular network extended by the binuclear [Cu2(O2N-ipO)2]2− unit via intermolecular hydrogen bond interactions. Complex 2 features a 3-D pillar-layered network with a (44 × 610 × 8) (44 × 62)-fsc topology. Solid-state properties such as thermal stabilities and magnetic properties of the complexes were also investigated.

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