Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Chloro(1,5-cyclooctadiene)(pentamethylcyclopentadienyl)ruthenium, is researched, Molecular C18H28ClRu, CAS is 92390-26-6, about Enthalpies of reaction of ruthenium complex Cp*Ru(COD)Cl (Cp* = η5-C5Me5; COD = cyclooctadiene) with chelating tertiary phosphine ligands. Solution thermochemical investigation of ligand substitution and ring strain energies in Cp*Ru(PP)Cl complexes.Application of 92390-26-6.
The enthalpies of reaction. of Cp*Ru(COD)Cl (Cp* = η5-C5Me6: COD = cyclooctadiene) with a series of bidentate ligands, leading to the formation of Cp*Ru(PP)Cl complexes, were measured by anaerobic solution calorimetry in THF at 30.0°. The overall relative order of stability for these complexes is: dppm < arphos, dmpm, dppb < dppe, dppp, dppv < dmpe, depe. Comparisons of enthalpies of reaction with monodentate phosphine ligands afford a quant. treatment of ring stain enthalpies in these Ru metallacycles. The ring strain energies in 4- and 7-membered metallacycles are about 10 and 5 kcal/mol, resp. A single crystal x-ray diffraction study performed on one of the metallacyclic complexes, Cp*Ru(arphos)Cl, is reported. Although many compounds look similar to this compound(92390-26-6)Application of 92390-26-6, numerous studies have shown that this compound(SMILES:[Cl-][Ru+2]1234567(C8(C)=C4(C)[C-]5(C)C6(C)=C87C)[CH]9=[CH]1CC[CH]2=[CH]3CC9), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method