The Trans-Cis Isomerisation of Bis(dioxolene)bis(pyridine)Ruthenium Complexes

Abstract

The isomerization of trans to cis bis(3,5-di-t-butylbenzo semiquinonato) bis(R-Pyridine) ruthenium, Ru(R-Py)2(DTBDiox)2, is induced by warming with an excess of R-pyridine, where R = 3-chloro, 4-methyl, 4-phenyl or 4-butyl. The rates of these reactions, for the species with R-Py = 3- chloropyridine, were monitored in o-dichlorobenzene by uv-visible spectroscopy, against varying 3-chloropyridine and varying trans-Ru(3-ClPy)2(DTBDiox)2 concentration. The data were found to obey first order kinetics. A plot of 1/ kobsd vs. 3-chloropyridine is linear with a positive intercept. A dissociative mechanism is proposed for the isomerisation reaction. The activation parameters were determined for the specific case of R-Py = 3-chloropyridine. Electronic and electrochemical features of these species are briefly discussed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 03, 1992
Accession Number
ADA247896

Entities

People

  • Alfred Beverley Philip Lever
  • Pamela R. Auburn
  • Yu-hong Tse

Organizations

  • University of York

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Engineering
  • Chemical Reaction Properties
  • Chemical Synthesis
  • Chemistry
  • Engineering
  • Geographic Information Systems
  • Isomerization
  • Materials
  • Measurement
  • Military Research
  • Organic Chemistry
  • Oxidation
  • Resonance
  • Spectra
  • Spectroscopy
  • Standards
  • Universities

Fields of Study

  • Chemistry

Readers

  • Aerospace Research.
  • Materials Science and Engineering.
  • Organic Chemistry

Technology Areas

  • Microelectronics