Thermal behaviors and adsorption properties of two Europium(III) complexes based on 2-(4-carboxyphenyl)imidazo[4,5-f]-1,10-phenanthroline

摘要

Graphical abstractTwo Europium(III) complexes1and2have been hydrothermally synthesized and characterized. Structural analyses revealed that two complexes all exhibit dinuclear structure of the adjacent 4-NCP-ligands and 1,4-bdc2?/4,4′-bpdc2-ligands act as connected line, respectively. In addition, these two metal-organic frameworks exhibit three-dimensional network structures with a Schl?fli symbol of 412·63 topologies.Display OmittedHighlights?Two Eu(III) MOFs based on HNCP and dicarboxylic acid ligands have been synthesized.?Two Eu(III) MOFs present excellent thermal stabilities.?Two Eu(III) MOFs materials present preferential adsorption of CO2over N2.