Hydrothermal synthesis,crystal structure and strong blue fluorescence of a novel 3D coordination polymer containing copper and zinc centers linked by isonicotinic acid ligands

摘要

The first mixed metal Zn/Cu coordination polymer,[Zn_3Cu_2(IN)_8] (1) (HIN=isonicotinic acid) was synthesized under hydrothermal conditions.The three dimensional structure of 1 has a novel topological metal-organic framework,which is built up by Zn~(2+),Cu~+and ligands IN to generate an open-framework with an unusual helical [-Zn(Cu)-IN-]_n chains along the b axis.The very strong blue fluorescence for 1 can be observed in the solid state.