Construction of Co(II) coordination polymers with flexible carboxylate ligands: structural and magnetic studies

• Two 1D/3D Co(II) coordination polymers have been synthesized.
• The compounds were structurally characterized by single crystal X-ray diffraction.
• The spin-canting behaviors were found in 1.

Two Co(II) coordination polymers [Co(3-pmna)2(H2O)2]n (1) and {[Co2(4-pmna)4(H2O)]∙0.25H2O}n (2), where 3-Hpmna = 2-(3-pyridylmethylthio)nicotinic acid and 4-Hpmna = 2-(4-pyridylmethylthio)nicotinic acid, were synthesized and fully characterized. 1 displays chain structure, while 2 exhibits 3D coordination network composed of dimer units. Magnetic studies reveal spin-canting behaviors in 1.

Two Co(II) coordination polymers were synthesized and characterized crystallographically and magnetically. 1 displays 1D chain structure, while 2 exhibits 3D coordination network composed of dimer units. Magnetic studies reveal antiferromagnetic interaction between the central metal ions in these two compounds, as well as the spin-canting behaviors in 1.Figure optionsDownload as PowerPoint slide