ISSN:
0538-8066
Schlagwort(e):
Chemistry
;
Physical Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The kinetics of the reaction \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm Fe}\left( {{\rm CO}} \right)_4 \left( {{\rm CH}_2{{=\!=}} {\rm CHX}} \right) + {\rm SbPh}_3 \to {\rm Fe}\left( {{\rm CO}} \right)_4 {\rm SbPh}_3 + {\rm CH}_2{{=\!=}}{\rm CHX}$$\end{document} \documentclass{article}\pagestyle{empty}\begin{document}$$ \left( {{\rm X} = {\rm OEt},{\rm Ph},{\rm Bu}^n ,{\rm Cl},{\rm Br},{\rm CO}_2 {\rm Me},{\rm CN}} \right) $$\end{document} have been studied in toluene solution. The reaction occurs by a dissociative mechanism and the observation of an appreciable mass law retardation effect shows that Fe(CO)4 is produced as an intermediate. Analysis of the effect of the substituent X on the stability of the complexes leads to the conclusion that π-backbonding between the metal and the olefinic ligand is the major cause of the M-olefin bond strength.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/kin.550050508
