A new two-dimensional CoII coordination polymer based on bis[4-(2-methyl-1H-imidazol-1-yl)phenyl] ether and biphenyl-4,4'-diyldicarboxylic acid: synthesis, crystal structure and photocatalytic degradation activity.

ABSTRACT

A novel two-dimensional CoII coordination framework, namely poly[(µ2-biphenyl-4,4'-diyldicarboxylato-κ2O4O4'){µ2-bis[4-(2-methyl-1H-imidazol-1-yl)phenyl] ether-κ2N3N3'}cobalt(II)], [Co(C14H8O4)(C20H18N4O)]n, has been prepared and characterized by IR, elemental analysis, thermal analysis and single-crystal X-ray diffraction. The crystal structure reveals that the compound has an achiral two-dimensional layered structure based on opposite-handed helical chains. In addition, it exhibits significant photocatalytic degradation activity for the degradation of methylene blue.