Synthesis, Crystal Structure and Characterization of Two Cobalt (II) Complexes Based on Pyridine Carboxylic Acid Ligands

Authors：Wei, Runzhi; Liu, Zheng^*; Wei, Wenchang; Liang, Chuxin; Han, Guo-Cheng^*; Zhan, Ling^*

Source：Zeitschrift für Anorganische und Allgemeine Chemie, 2022, 648(9).

DOI：10.1002/zaac.202000418

• Keywords
• Cobalt complexes
• Synthesis
• Crystal structure
• Dipicolinic acid

Two undocumented cobalt (II) complexes [Co(5-Br-2,3-pydc)(H2O)(3) . H2O](n) (namely Co-MOF 1) and [Co(6-Me-2,3-pydc)(H2O)(3)](n) (namely Co-MOF 2), were successfully synthesized by solvothermal method. The X-ray single crystal diffraction, infrared spectrometer (IR), UV-Vis spectrum and X-ray diffraction were used to characterize and analyze the structure of the two MOFs. The single crystal structure analysis showed that Co-MOF 1 reconnected by Co-N bond and Co-O bond to form a one-dimensional chains. The Co-MOF 2 was connected by Co-O and Co-N bonds to form a one-dimensional chain.The results indicated that complexes Co-MOF 1 and Co-MOF 2 have a certain thermal stability and fluorescence properties.

• Institution
  桂林电子科技大学; 桂林理工大学