Kinetics of an oxidative addition of some silicon hydrides to an iridium(I) complex

1970 ◽  
Vol 92 (9) ◽  
pp. 2699-2701 ◽  
Author(s):  
John F. Harrod ◽  
Colin A. Smith
Keyword(s):  
Oxidative Addition ◽  
Silicon Hydrides ◽  
Kinetics Of

scholarly journals Oxidative addition of silicon hydrides to hydridocarbonyltris(triphenylphosphine)iridium(I)

1969 ◽  
Vol 47 (12) ◽  
pp. 2205-2208 ◽  
Author(s):  
J. F. Harrod ◽  
D. F. R. Gilson ◽  
R. Charles
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Oxidative Addition ◽  
Proton Nuclear Magnetic Resonance ◽  
Iridium Complex ◽  
Thermal Loss ◽  
Silicon Hydride ◽  
Silicon Hydrides ◽  
Nuclear Magnetic

Complexes have been prepared by oxidation of hydridocarbonyltris(triphenylphosphine)iridium(I) with a variety of silicon hydrides. The complexes were very stable with respect to thermal loss of either silicon hydride or molecular hydrogen.An unequivocal assignment of stereochemistry of the complexes was obtained from a combination of infrared and proton nuclear magnetic resonance (n.m.r.) techniques. Addition of the silicon hydride to the iridium complex was found to be stereospecifically cis.

Reaction kinetics of surface silicon hydrides

1989 ◽  
Vol 7 (3) ◽  
pp. 1845-1849 ◽  
Author(s):  
C. Michael Greenlief ◽  
Stephen M. Gates ◽  
Philip A. Holbert
Keyword(s):  
Reaction Kinetics ◽  
Silicon Hydrides ◽  
Kinetics Of

Kinetics of oxidative addition of zerovalent palladium to aromatic iodides

1981 ◽  
Vol 208 (3) ◽  
pp. 419-427 ◽  
Author(s):  
Jean-François Fauvarque ◽  
Fernando Pflüger ◽  
Michel Troupel
Keyword(s):  
Oxidative Addition ◽  
Kinetics Of

Activation entropy as a dominant factor in the oxidative addition of some group IV hydrides to an iridium(I) complex

1976 ◽  
Vol 54 (19) ◽  
pp. 3102-3109 ◽  
Author(s):  
J. P. Fawcett ◽  
J. F. Harrod
Keyword(s):  
Relative Rate ◽  
Oxidative Addition ◽  
Group Iv ◽  
Dominant Factor ◽  
Iridium Complex ◽  
Activation Entropy ◽  
Acid Base ◽  
Square Planar ◽  
The Difference ◽  
Kinetics Of

The kinetics of the reactions[Formula: see text]have been studied (M = Si, Ge, Sn). All three reactions proceed by predissociation of the iridium complex and concerted cis addition of Ph3MH to the square-planar intermediate. The relative rate of addition of Ph3MH increases in the order Si (1) < Ge (18) < Sn (70) and the difference in rate within experimental error is due entirely to change in ΔS0. It is concluded that, for this particular series of oxidative addition reactions, solvation effects related to a change in polarity on passage to the transition state are more important than bond energies, or acid–base properties, in determining relative reaction energetics. The relevance of entropy barriers to the problem of paraffin activation is discussed.

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