Dissemin is shutting down on January 1st, 2025

Published in

American Chemical Society, Inorganic Chemistry, 19(42), p. 5890-5899, 2003

DOI: 10.1021/ic034489j

Links

Tools

Export citation

Search in Google Scholar

Equilibria between Metallosupramolecular Squares and Triangles with the New Rigid Linker 1,4-Bis(4-pyridyl)tetrafluorobenzene. Experimental and Theoretical Study of the Structural Dependence of NMR Data

Journal article published in 2003 by Montserrat Ferrer, Mounia Mounir, Oriol Rossell, Eliseo Ruiz ORCID, Miguel Angel Maestro
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
  • Must obtain written permission from Editor
  • Must not violate ACS ethical Guidelines
Upload
Orange circle
Postprint: archiving restricted
  • Must obtain written permission from Editor
  • Must not violate ACS ethical Guidelines
Upload
Red circle
Published version: archiving forbidden
Policy details
Data provided by SHERPA/RoMEO

Abstract

The new fluorinated rigid ligand L, 1,4-bis(4-pyridyl)tetrafluorobenzene, was used in combination with different diphosphine Pd(II) and Pt(II) triflates to build metallosupramolecular assemblies. Complex equilibria between triangular and square entities were detected for all the cases. Characterization of the equilibria was accomplished by 1H, 31P(1H), 19F, and 195Pt(1H) NMR in combination with mass spectrometry. The square/triangle ratio was seen to depend on several factors, such as the nature of the metal corners, the concentration, and the solvent. The relative stability of the square and triangular complexes was explored by using force field methods. A GIAO-DFT study was carried out to analyze the changes of the 31P and 1H NMR data with the geometry of the complexes.