Crystal structures and catalytic activities of Zn(II) compounds containing 1,3-bis(4-pyridyl)propane

Youngmee Kim, Sung Jin Kim, Seung Hoon Choi, Jung Hee Han, Sang Ho Nam, Jung Hwan Lee, Hee Jin Kim, Cheal Kim, Dong Wook Kim, Ho Gyeom Jang

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23 Scopus citations


The structures of new compounds containing Zn(II) ions and bpp (1,3-bis(4-pyridyl)propane) ligands have been determined. The coordinating halides (Br- or Cl-) produce one-dimensional compounds 6 and 7, and intra- and inter-chain C{single bond}H⋯X (X = Br or I) interactions play roles for building crystal structures with the flexible bpp ligands. The non-coordinating multiscripts(PF, 6, mml:none(), mml:none(), -) anions do not produce hydroxyl bridged zinc cations or polymeric compounds, and produce only a monomeric complex 4 containing four bpp ligands and two water ligands. Previously reported polymeric compounds 1 and 2 containing hydroxyl-bridged zinc cations [Zn2OH] were found to carry out the catalytic transesterification of a range of esters with methanol at room temperature under the mild conditions, whereas the rest of compounds did not catalyze the transesterification reactions at all. In addition, the catalysts 1 and 2 have shown even better catalytic activity than zinc salts Zn(NO3)2 and Zn(OTf)2.

Original languageEnglish
Pages (from-to)2534-2542
Number of pages9
JournalInorganica Chimica Acta
Issue number8
StatePublished - 15 May 2006

Bibliographical note

Funding Information:
Financial support from the Korean Science and Engineering Foundation (R01-2005-000-10490-0(2005)) and the Korea Research Foundation (2002-070-C00053) and the SRC program of MOST/KOSEF through the Center for Intelligent Nano-Bio Materials at Ewha Womans University (R11-2005-008-00000-0) is gratefully acknowledged.


  • Catalyst
  • Crystal structures
  • Polymeric compounds
  • Transesterification
  • Zn(II) complexes
  • bpp ligand


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