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Nucleophilic substitution—continued positional activity

Binuclear Simple Carbonyls. Mechanisms of reactions of the binuclear carbonyls M2(CO)io continue to be a subject of research and discussion. The most recent paper in this field opens with a useful review of current data and opinions, and offers e.s.r. evidence for the intermediacy of radicals in reaction of Mii2(CO)io with tributylphosphine or triethyl-phosphine. Rates of substitution at Mn2(CO)io by poor nucleophiles are decreased by the presence of an excess of carbon monoxide, are independent of nucleophile concentration, and are associated with large positive activation energies. These, and earlier results reported by other workers, can all be accommodated by a mechanism involving reversible loss of carbon monoxide ... [Pg.267]


See other pages where Nucleophilic substitution—continued positional activity is mentioned: [Pg.162]    [Pg.293]    [Pg.550]    [Pg.445]    [Pg.69]   
See also in sourсe #XX -- [ Pg.162 ]

See also in sourсe #XX -- [ Pg.162 ]

See also in sourсe #XX -- [ Pg.162 ]

See also in sourсe #XX -- [ Pg.162 ]




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Activated nucleophile

Activated nucleophiles

Activation Substitution

Nucleophile activation

Nucleophiles Nucleophile, activation

Nucleophiles, activation

Nucleophilic activation

Nucleophilic activity

Nucleophilic substitution—continued

Position substitutable

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