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Enthalpies of Reaction of Cp'Ru(COD)Cl (Cp' = C5H5, C5Me5; COD = Cyclooctadiene) with P(p-XC6H4)3 (X = Cl, F, H, CH3, CF3, OCH3) Ligands: Ligand Steric vs Electronic Contributions to the Enthalpy of Reaction

Authors :
Michele E. Cucullu
Scafford A. Serron
Lubin Luo
Edwin D. Stevens
Chunbang Li
Steven P. Nolan
Source :
Organometallics. 14:5290-5297
Publication Year :
1995
Publisher :
American Chemical Society (ACS), 1995.

Abstract

The enthalpies of reaction of Cp'Ru(COD)Cl (1; Cp' = eta(5)-C5H5, eta(5)-C(5)Me(5); COD cyclooctadiene) with a series of para-substituted monodentate tertiary phosphine ligands, leading to the formation of Cp'Ru(PR(3))(2)Cl, have been measured by anaerobic solution calorimetry in THF at 30.0 degrees C. These reactions are rapid and quantitative. Structural studies have been carried out on three complexes in this series. The relative importance of phosphine steric vs electronic ligand parameters is more closely examined in terms of the presented quantitative thermochemical and structural information. Comparisons with enthalpy data in this and related organometallic systems are also presented.

Details

ISSN :
15206041 and 02767333
Volume :
14
Database :
OpenAIRE
Journal :
Organometallics
Accession number :
edsair.doi...........91fe01ab57b032d71fa52e149153618c
Full Text :
https://doi.org/10.1021/om00011a053