Non-additive Ligand Effects in Series of L-Substituted Ruthenium Halide Complexes (L = CH3CN, AsMe3, CO)

Authors

  • Junie B. Billones Department of Physical Sciences and Mathematics, College of Arts and Sciences, University of the Philippines, Ermita, Manila
  • Eva Marie A. Ratilla Institute of Chemistry, College of Science, University of the Philippines, Diliman, Quezon City
  • Graham A. Heath Research School of Chemistry, Australian National University, Canberra

DOI:

https://doi.org/10.26534/kimika.v16i1.19-23

Keywords:

Ligand-additivity, halo-nitrile ruthenium, halo-arsine ruthenium, halo-nitrile-carbonyl ruthenium, ruthenium (III/II) electrode potential

Abstract

In the series [RuX6]3-, [RuX5(CH3CN)]2-, trans-[RuX4(CH3CN)2]- (X = Cl, Br), where the ligands are not very contrasting in nature, ruthenium III/II redox couple shifts almost twice further for the first introduction of nitrile than for the second, contrary to recent predictions. Distinct non-additive ligand effects are also demonstrated in the analogous series of arsine complexes. The remarkable electrode potential differences in geometrical isomers of mixed halide/nitrile/carbonyl ruthenium complexes support the non-linear accumulation of ligand electronic effects.

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How to Cite

Billones, J. B., Ratilla, E. M. A., & Heath, G. A. (2000). Non-additive Ligand Effects in Series of L-Substituted Ruthenium Halide Complexes (L = CH3CN, AsMe3, CO). KIMIKA, 16(1), 19–23. https://doi.org/10.26534/kimika.v16i1.19-23

Issue

Vol. 16 No. 1 (2000)

Section

Research Articles

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