A twofold interpenetrating 3D Keggin-based Ag(I) complex based on a flexible bis-pyridyl-bis-amide

Abstract

A Keggin-type polyoxometalate (POM)-based complex, [Ag₅(L)₃ (H₂O)₂]·6H₂O (1) (L = N,N′-bis(3-pyridinecarboxamide)-1,2-ethane), has been hydrothermally synthesized. Compound 1 shows a 3D + 3D interpenetrating network with a (3,4,4,4)-connected (4 × 6²)₂(4² × 6² × 8²)(6⁵ × 8)₂ topology, and it represents the first example of interpenetrating POM-based complex based on flexible bis-pyridyl-bis-amide ligands. Moreover, the electrochemical behavior and luminescence of 1 have been investigated.

Keywords:

• Keggin polyoxometalate
• Metal-organic complex
• Interpenetrating network
• Flexible bis-pyridyl-bis-amide ligand

Acknowledgments

This work was supported by the Program for New Century Excellent Talents in University (NCET-09-0853), the National Natural Science Foundation of China (Nos. 21171025 and 21101015), Natural Science Foundation of Liaoning Province (No. 201102003), and Program of Innovative Research Team in University of Liaoning Province (LT2012020).