Syntheses of four porous 3-D Cd(ii) metal-organic frameworks from a new multidentate ligand 5-(imidazol-1-yl)-N'-(pyridin-4-ylmethylene) nicotinohydrazide and their characterization and adsorption properties.

ABSTRACT: Herein, a new multidentate ligand, 5-(imidazol-1-yl)-N'-(pyridin-4-ylmethylene) nicotinohydrazide (L), with an acylhydrazone group was synthesized and characterized. Subsequently, four porous Cd(ii)-MOFs, i.e. [Cd(L)(NO₃)] _n (1), [Cd(L)Cl] _n (2), [Cd(L)Br] _n (3), and [Cd(L)I] _n (4), were assembled using the ligand L by a solvothermal method and characterized by single-crystal X-ray diffraction, infrared spectroscopy, thermogravimetric analysis, and powder X-ray diffraction. Structural analysis shows that the coordination environments around Cd(ii) in all the four compounds are different due to the different coordinated anions. Among them, the coordination geometries and the arrangement of five-

SUBMITTER: Zhu GY 

PROVIDER: S-EPMC9056342 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature