Trans Bis-N-heterocyclic carbene bis-acetylide palladium(II) complexes

Michael Koch, Jai Anand Garg, Olivier Blacque, Koushik Venkatesan*

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A series of square planar trans bis-N-heterocyclic carbene palladium(II) bis(acetylide) complexes of the type [( iPr 2-bimy) 2Pd(C≡C-R) 2] (bimy = benzimidazolin-2-ylidene) (R = C 6H 5, C 6H 4F, C 6H 4OMe, SiMe 3, C 4H 3S, C 5H 4N, C 6H 4C≡CC 6H 5 and 1-pyrene) were prepared by the addition of the corresponding lithium acetylides to the starting ( iPr 2-bimy) 2PdBr 2 complex in good to modest yields. The molecular structures of ( iPr 2-bimy) 2Pd(C≡C-C 6H 5) 2 (1) and [( iPr 2-bimy) 2Pd(C≡C-SiMe 3) 2] (4) were determined by single-crystal X-ray diffraction studies. UV/vis absorption studies reveal significant spectral changes depending on the nature of the acetylide ligands bound to the palladium center.

Original languageEnglish
Pages (from-to)154-159
Number of pages6
JournalJournal of Organometallic Chemistry
Volume700
DOIs
Publication statusPublished - 1 Mar 2012
Externally publishedYes

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Keywords

  • Alkynes
  • Luminescence
  • N-Heterocyclic carbenes
  • Palladium

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