Three Ln(III)-2,3,5-trichlorobenzoate coordination polymers (Ln = Tb, Ho and Er): Syntheses, structures and magnetic properties

• We have synthesized and characterized three novel lanthanide polymers.
• Magnetic studies of polymers 1–3 have been implemented.
• 1–3 present ferromagnetic, antiferromagnetic and spin canting behavior, respectively.
• For 1 and 3, sigmoidal curve hysteresis loops without hysteresis was observed.

Three novel lanthanide polymers, [Ln(III)(L)3EtOH]n (Ln = Tb(1), Ho(2), Er(3), HL = 2,3,5-trichlorobenzoic acid), have been solvothermal synthesized and characterized by single-crystal X-ray diffraction, infrared spectroscopy and element analyses. The three polymers crystallize in triclinic space group P-1. The Ln(III) ions are in turn bridged by double and quadruple carboxylate of L− ligands to form one-dimensional (1D) chains. Magnetic studies reveal that polymer 1 demonstrates dominant ferromagnetic behavior, polymer 2 shows antiferromagnetic behavior, and polymer 3 present spin-canting behavior.

Three novel lanthanide polymers based on 2,3,5-trichlorobenzoic acid have been solvothermal synthesized and characterized. Polymers 1–3 are isostructural which crystallize in the triclinic space group P-1. Magnetic studies reveal that polymer 1 demonstrates dominant ferromagnetic behavior, polymer 2 shows antiferromagnetic behavior, and polymer 3 presents spin-canting behavior.Figure optionsDownload as PowerPoint slide