Solution Thermochemistry of Ligand Substitution Reactions Involving Organoruthenium Complexes

Abstract

The solution thermochemistry of ruthenium-based organometallic complexes is outlined. Until recently, very little thermodynamic information was available concerning organogroup VIII systems. Bond enthalpy data for metal-hydride, metal-arene, metal-diene and metal-phosphine bonds have only recently been determined and will be presented and discussed in the following contribution. Developments in organometallic thermochemistry have demonstrated the considerable insight into bonding and reaction chemistry that metal-ligand bond disruption enthalpy data can provide. Such thermodynamic data will prove to be of fundamental importance to both theoretical and applied research in organometallic chemistry and catalysis.

Key Words:

• bond enthalpy data
• solution calorimetry
• ancillary ligand influence
• ligand substitution reactions
• tertiary phosphine
• ligand steric and electronic factors
• thermochemistry