Synthesis and Structures of Cobalt(II) and Manganese(II) Coordination Polymers With 2-Aminoterephthalic Acid and Various Dipyridyl-Type Coligands

Abstract

Two new Co(II) and Mn(II) coordination polymers [Co(atpa)(bpp)]_n (1), and [Mn(3-aba)₂(4,4′-bpy)]_n·n(4,4′-bpy) (2) (H₂atpa = 2-aminoterephthalic acid and 3-aba⁻= 3-aminobenzoic acid anion), have been synthesized through solvothermal reactions using 2-aminoterephthalic acid, cobalt/manganese salts, and different dipyridyl-type coligands 1,3-di(4-pyridyl)propane (bpp) and 4,4’-bipyridyl as starting materials. The complexes 1 and 2 were characterized by elemental analysis, IR spectra, and X-ray single-crystal diffraction. Complex 1 displays a 2-fold parallel interpenetrating array of undulating (4, 4) coordination layers. Complex 2 features a 1D chain and further forms a 3D supramolecular pattern by H-bondings.

Keywords:

• Cobalt(II) complex
• H-bonding
• manganese(II) complex
• coordination polymer

Acknowledgments

The authors gratefully acknowledge financial support by the National Natural Science Foundation of China (Nos. 21071074, 21271098, and 21273101).