Synthesis, structure, and ligand exchange of a copper(II)-based molecular helix with 2,6-pyridinedicarboxylates

Jeonghee Lee, Philjae Kang, Moon Gun Choi, Hyojong Yoo

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6 Citations (Scopus)


An one-dimensional (1-D) metal-organic polymer, [Cu2(PDA)2(DMF)2]n (PDA = 2,6-pyridinedicarboxylate, DMF = dimethylformamide), was synthesized by reaction of copper(II) nitrate hemi(pentahydrate) and 2,6-pyridinedicarboxylic acid in DMF. The complex shows a molecular helix structure consisting of five-coordinate Cu(II) building blocks with distorted square pyramidal geometry. Tridentate chelating PDA, DMF, and an oxygen from the carboxylate of the adjacent Cu(II) building unit are coordinated to the copper(II) center. The weakly coordinated DMF groups in [Cu2(PDA)2(DMF)2]n easily exchange with a pyridine to generate a pyridine-coordinated non-helical 1-D metal-organic polymer with six-coordinate pseudooctahedral Cu(II) units.

Original languageEnglish
Pages (from-to)461-470
Number of pages10
JournalJournal of Coordination Chemistry
Issue number3
Publication statusPublished - 2015 Feb 1

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education [NRF-2013R1A1A2057675]; Hallym University Research Fund, 2014 [HRF-201401-010].

Publisher Copyright:
© 2015 Taylor and Francis.

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Materials Chemistry


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