Synthesis, crystal structure, and fluorescent property of a 1D Pb(II) coordination polymer containing unique helical chains based on 4,4′-oxydiphthalate

ABSTRACT

A one-dimensional Pb(II) complex [Pb₂(H₂ODPT)₂(H₂O)₇·H₂O]_n (1) (H₄ODPT = 4,4′-Oxydiphthalic acid) has been synthesized and characterized using single crystal X-ray diffraction, IR, and elemental analysis. Single-crystal X-ray diffraction analysis revealed that complex 1 is a one-dimensional chain polymer containing unique helical chains. Adjacent 1D chains are linked by π–π interaction, intermolecular and intramolecular O–H···O hydrogen bonds to form a three-dimensional supramolecular structure. The thermal stability and photoluminescent property of the title complex have been investigated.

KEYWORDS:

• Crystal structure
• coordination polymer
• 4,4′-oxydiphthalic acid
• luminescence

Funding

This work was supported by the Natural Science Foundation of Jiangsu Province (No. BK20141258) and Prospective Industry-University-Research Cooperation Fund of Jiangsu Province (No. BY2016066-07, BY2016066-08).