Coordination Properties and Fluorescence of a Structurally Novel Zn(II) Pyridine-Terminal Salamo-Type Coordination Polymer

A novel two-dimensional Zn(II) coordination polymer [Zn(II) CP], [{Zn(L)Zn(OAc-)(mu-OAc-)}(4)](n)center dot 2nCH(3)CH(2)OH has been self-assembled from Zn(OAc)(2)center dot 2H(2)O. It contains pyridine-terminal salamo-type ligand H2L. Structure of the product has been determined. The Zn(II)CP contains two kinds of Zn(II) ions of different coordination modes. The Zn1 center is characterized by five-coordinated triangular biconical geometry. The Zn-2 center is a six-coordinated octahedral center. Using these as junction points and the fully deprotonated ligand (L)(2-) moieties containing pyridine-terminal as a linker, the 2-D coordination polymer with two kinds of different pores [27.47 x 11.77(23) angstrom(2); 11.97 x 4.51(17) angstrom(2)] has been obtained. The Zn(II) CP can fluoresce green and be used in fluorescent materials. Short-range interactions on Zn(II) CP surface have been studied by Hirshfeld surface analysis.

Automated summary

A novel two-dimensional Zn(II) coordination polymer with green fluorescence properties has been successfully synthesized and shows potential applications in fluorescent materials. The study reveals specific short-range interactions on the surface of the polymer.