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A rigid trans-spanning dinitrile ligand

Academic Article
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Overview

authors

  • Shimizu, K. D.
  • Rebek Jr., Julius

publication date

  • April 1996

journal

  • Proceedings of the National Academy of Sciences of the United States of America  Journal

abstract

  • A rigid dinitrile ligand was synthesized from two xanthene units condensed to a naphthalene-1,4,5,8-diimide spacer. The rigidity and C shape of the ligand gave exclusively trans complexes with Pd(II), Ag(I), and Au(I). Evidence for complexation, coordination geometry, and stoichiometry was provided by a combination of 1H NMR, 19F NMR, and IR spectroscopy. The AuBF4 and PdCl2 complexes were shown to have a 1:1 (metal-to-ligand) stoichiometry and the AgBF4 complex was shown to have a 1:2 stoichiometry in solution. The preorganization of the dinitrile ligand resulted in complexes much more stable than their monodentate counterparts.

subject areas

  • Gold
  • Indicators and Reagents
  • Isomerism
  • Kinetics
  • Ligands
  • Magnetic Resonance Spectroscopy
  • Metals
  • Molecular Structure
  • Nitriles
  • Palladium
  • Silver
  • Spectrophotometry, Infrared
  • Xanthenes
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Research

keywords

  • bidentate ligand
  • nitrile
  • trans-spanning ligand
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Identity

International Standard Serial Number (ISSN)

  • 0027-8424

Digital Object Identifier (DOI)

  • 10.1073/pnas.93.9.4257

PubMed ID

  • 8633051
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Additional Document Info

start page

  • 4257

end page

  • 4260

volume

  • 93

issue

  • 9

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