Aggregation of two different coordination polymers by reacting zinc nitrate and cadmium chloride with N,N′-ethylenebisacetamide

Abstract

Two different coordination polymers are obtained from d¹⁰ metal ions [Zn(II) and Cd(II)] and N,N′-ethylenebisacetamide (EBA). {[Zn(EBA)_1.5(NO₃)] · (NO₃)} _n (1) is a 1-D coordination polymer assembled from zinc ions and EBA molecules acting as a bridging ligand. Cd(H₂O)₂Cl₂(EBA) (2) is constructed from 1-D inorganic polymeric chains {Cd(OH₂)₂Cl₂} _n and uncoordinated N,N′-ethylenebisacetamide molecules. These chains are interconnected through hydrogen bonds resulting in a 3-D supramolecular network. The luminescent properties of the organic molecule EBA, as well as of the coordination polymers 1, and 2 have been investigated.

Keywords:

• N,N′-Ethylenebisacetamide
• Coordination polymers
• Hydrogen bonds
• Luminescence

Acknowledgments

The authors gratefully acknowledge the financial support from POSDRU/89/1.5/S/58852 program. Also the authors thank Dr. Constantin Draghici and Dr. Diana Visinescu for useful discussions.