Hydrogen atom transfer reactions of transition-metal hydrides. Utilization of a radical rearrangement in the determination of hydrogen atom transfer rates

1987 ◽  
Vol 109 (21) ◽  
pp. 6542-6544 ◽  
Author(s):  
R. Morris Bullock ◽  
Edward G. Samsel
Keyword(s):  
Hydrogen Atom ◽  
Transition Metal ◽  
Metal Hydrides ◽  
Hydrogen Atom Transfer ◽  
Transfer Reactions ◽  
Atom Transfer ◽  
Transfer Rates ◽  
Transition Metal Hydrides ◽  
Radical Rearrangement

Hydrogen Atom Transfer Rates from Tp-Containing Metal Hydrides to Trityl Radicals

2020 ◽  
Author(s):  
Hunter B. Vibbert ◽  
Hagen Neugebauer ◽  
Jack R Norton ◽  
Andreas Hansen ◽  
Markus Bursch ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Rate Constants ◽  
Transfer Rate ◽  
Metal Hydrides ◽  
Hydrogen Atom Transfer ◽  
Transfer Reactions ◽  
Atom Transfer ◽  
Transfer Rates ◽  
Borate Complexes ◽  
And Tungsten

The H• transfer rate constants for a series of group 6 molybdenum and tungsten pyrazolyl borate complexes are described. The rate constants for these complexes were found to span a range over 1 magnitude. Analysis of the H• transfer rate constants suggests that a combination of steric, electronic, and enthalpic factors are important in these reactions. Further analysis of the components suggests that the generated 17 e– radicals of these complexes are less electrophilic than the more commonly used CpCr(CO)3H complexes. General implications for H• transfer reactions are discussed.

scholarly journals Trends in Ground-State Entropies for Transition Metal Based Hydrogen Atom Transfer Reactions

2009 ◽  
Vol 131 (12) ◽  
pp. 4335-4345 ◽  
Author(s):  
Elizabeth A. Mader ◽  
Virginia W. Manner ◽  
Todd F. Markle ◽  
Adam Wu ◽  
James A. Franz ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Transition Metal ◽  
Ground State ◽  
Hydrogen Atom Transfer ◽  
Transfer Reactions ◽  
Atom Transfer ◽  
Atom Transfer Reactions
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