Study of the products of the reaction of cobalt(II) acetate with 2-iodoterephthalic acid and 1,10-phenanthroline

Abstract

The reaction of cobalt(II) acetate with 2-iodoterephthalic acid and 1,10-phenanthroline (phen) in N,N-dimethylformamide (DMF) leads to formation of two products, hexakis(N,N-dimethyl-formamide-κO)cobalt(II) bis(iodide) (1) and MOF [Co(TP)(phen)·2DMF·2H₂O] (2), where TP is terephthalate dianion. Compound 1 crystallizes in the monoclinic space group Р2 1/с with cell parameters a = 14.2974(4) Å, b = 10.7983(4) Å, c = 20.6437(9) Å, V = 3183.23 ų. The MOF was characterized by elemental analysis, infrared spectrometry, X-ray diffraction, scanning electron microscopy, thermogravimetry, and volumetric nitrogen adsorption/desorption. The sample has permanent porosity and a microporous structure with a large surface area corresponding to the adsorption type I. Thermolysis of 2 leads to the formation of nitrogen-doped carbon nanomaterials Co/CoO@C.

Graphical Abstract

Keywords:

• Cobalt terephthalate
• X-ray diffraction
• thermolysis
• metal-organic framework
• carbon nanomaterial

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was performed in accordance with the state task, state registration “Institute of Problem of Chemical Physics of Russian Academy of Sciences (No. АААА-А19-119092390076-7).”