Anion effects on construction of cadmium(II) compounds with a chelating ligand bis(2-pyridylmethyl)amine: Their photoluminescence and catalytic activities

Geun Hee Eom, Jin Hoon Kim, Young Dan Jo, Eun Young Kim, Jeong Mi Bae, Cheal Kim, Sung Jin Kim, Youngmee Kim

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Four new structures of Cd II complexes containing bis(2-pyridylmethyl)amine (bispicam) ligands have been determined. Chloride anions bridge two Cd II ions to form a dinuclear complex [(Cd(bispicam)Cl) 22-Cl 2)] (1), and bromide and iodide ions produce two halide-coordinated [Cd(bispicam)X 2] complexes (X = Cl for 2 and Br for 3). Nitrate anions produce both nitrate-coordinated [Cd(bispicam) 2(NO 3)] + and simple [mer-Cd(bispicam) 2] 2+ with three nitrate counter-anions (4). These results indicate that anion effects play very important roles for construction of crystal structures and geometrical isomerism. Moreover, the homogeneous catalyst [Cd(bispicam) 2] (ClO 4) 2 (5) catalyzed efficiently the transesterification of a variety of esters with methanol, while rest of the complexes have displayed very slow conversions. Furthermore, 1-5 showed the intense emissions at room temperature, which could be used as a good candidate for a potential hybrid inorganic-organic photoactive material.

Original languageEnglish
Pages (from-to)106-116
Number of pages11
JournalInorganica Chimica Acta
Volume387
DOIs
StatePublished - 30 May 2012

Bibliographical note

Funding Information:
Financial support from Korean Science & Engineering Foundation (2009-0074066), Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2011K000675 ), and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2011-0008018), and RP-Grant 2011 of Ewha Womans University is gratefully acknowledged.

Keywords

  • Bis(2-pyridylmethyl)amine
  • Catalyst
  • Cd complexes
  • Photoluminescence
  • Transesterification

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