Novel CdII coordination polymers (1-D, 2-D to 3-D) constructed from 1,2-cyclohexanedicarboxylate and various bipyridyl ligands

Eun Young Kim, Hyun Min Park, Ha Yeong Kim, Jin Hoon Kim, Min Young Hyun, Ju Hoon Lee, Cheal Kim, Sung Jin Kim, Youngmee Kim

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Four CdII-(e,a-cis-1,2-chdc) complexes, [Cd(H 2O)(1,2-chdc)(2,2′-bpy)] 1, [Cd(1,2-chdc)(bpe)]n 2, [Cd2(1,2-chdc)(4,4′-bpy)2]n 3A, and [Cd(H2O)(1,2-chdc)(4,4′-bpy)2]n· 3n(H2O) 3B (1,2-chdc = 1,2-cyclohexanedicarboxylate), with different assistant ligands (2,2′-bipyridine (2,2′-bpy), 1,2-bis(4-pyridyl) ethene (bpe), and 4,4′-bipyridine (4,4′-bpy)) have been synthesized and their structures were determined. Depending on the assistant ligands, the structures and dimensionalities of CdII-(e,a-cis-1,2-chdc) complexes have been varied. Two carboxylates in e,a-cis-1,2-chdc coordinate to Cd II ions in chelating (η11), bridging (η112), and chelating/bridging (η212) modes. Photoluminescence study of the compounds 1 and 2 showed that emission spectrum of compound 1 was observed at 348 nm, while relatively weak luminescence was displayed at 516 nm for 2. The thermal stabilities of these complexes were also examined.

Original languageEnglish
Pages (from-to)335-342
Number of pages8
JournalJournal of Molecular Structure
Volume994
Issue number1-3
DOIs
StatePublished - 17 May 2011

Bibliographical note

Funding Information:
Financial support from the Korean Science & Engineering Foundation (R01-2008-000-20704-0 and 2009-0074066), the Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0082832), and the SRC program of the Korea Science and Engineering Foundation (KOSEF) through the Center for Intelligent Nano-Bio Materials at Ewha Womans University ( Grant R11-2005-008-00000-0 ) is gratefully acknowledged.

Keywords

  • 1,2-Cyclohexanedicarboxylate
  • Bipyridyl ligands
  • Cd complexes
  • Coordination polymers
  • Photoluminescence

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