Construction of a triazine polycarboxylate Co-MOF with flexible and rigid coordination arms as well as excellent catalytic reduction and adsorption properties.

A new compound [Co 2 (H 2 BATD)(DMF) 2 ]·2.5DMF·0.5H 2 O (1) was synthesized from the triazine ligand H 6 BATD (H 6 BATD = 5,5'-(6-biscarboxymethylamino-1,3,5-triazine-2,4-diyl) bis (azadiyl), DMF = N , N -dimethylformamide) and Co(NO 3 ) 2 ·6H 2 O. Compound 1 was characterized using infrared spectroscopy, UV-vis spectroscopy, PXRD, and thermogravimetry. The three-dimensional network of compound 1 was further constructed using [Co 2 (COO) 6 ] building blocks from the flexible coordination arms and the rigid coordination arms from the ligand. In terms of functional properties, compound 1 can be used for the catalytic reduction of p -nitrophenol (PNP) to p -aminophenol (PAP), and compound 1 with a dose of 1 mg showed good catalytic reduction properties, as well as a conversion rate of over 90%. Based on the unique π-electron wall and carboxyl groups in the H 6 BATD ligand that provide abundant adsorption sites, compound 1 can be used to adsorb iodine in cyclohexane solution.