A New Pb(II)-Coordination Polymer With 1,3-Phenylenediacetic Acid Featuring Different Polymeric Chain Units: Synthesis, Crystal Structure, and Luminescent Property

Abstract

A novel coordination polymer, [Pb(1,3-pda)(H₂O)]_n (1) (1,3-pda = 1,3-phenylenediacetic acid), was hydrothermally synthesized and characterized by elemental analysis, FT-IR spectroscopy, and X-ray single-crystal diffraction. Compound 1 crystallizes in orthorhombic, space group P2₁2₁2₁ with a = 7.3259(7), b = 9.0626(9), c = 16.6368(16) Å, C₁₀H₁₀NO₅Pb, M_r = 417.37, V = 1104.55(19) ų, Z = 4, D_c = 2.510 g·cm⁻¹, S = 1.069, R = 0.0458, and wR = 0.1155 (I > 2σ(I)). Single-crystal X-ray diffraction analysis reveals that compound 1 is a novel 3D complicated framework resulting from the interweaving of 1D rod-shaped [Pb(COO)₂O]_n chains and [Pb(pda)]_n helical chains. Topological analysis suggests that compound 1 features a uninodal 4-connected sra net with the point symbol of (4².6³.8). Solid-state properties, such as photoluminescence and thermal stability of 1, have also been investigated.

Keywords:

• Pb(II)-compound
• 1
• 3-phenylenediacetic acid
• topological structure
• fluorescent property

Supplementary Material

Crystallographic data for the structural analysis have been deposited with the Cambridge Crystallographic Data Centre, CCDC No. 939264. Copies of this information may be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (fax: [phone]; E-mail: [email protected] or http://www.ccdc.cam.ac.uk).