Evidence for a Precursor Complex in CH Hydrogen Atom Transfer Reactions Mediated by a Manganese (IV) Oxo Complex

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Evidence for a Precursor Complex in CH Hydrogen Atom Transfer Reactions Mediated by a Manganese (IV) Oxo Complex

Garcia Bosch, Isaac; Company Casadevall, Anna; Cady, Clyde W.; Styring, Stenbjörn; Browne, Wesley R.; Ribas Salamaña, Xavi; Costas Salgueiro, Miquel

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Name: Evidence-Precursor.pdf
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URI: http://hdl.handle.net/10256/7123
Date: 2012-10-10

Abstract

HAT trick: [MnIV(OH)2(H,MePytacn)]2+ (A) and [MnIV(O)(OH)(H,MePytacn)]+ (B) differ in their reactions with CH bonds: compound A engages in typical single-step hydrogen atom transfer (HAT) reactions, whereas B first forms a substrate–B encounter complex (C; see scheme). This equilibrium alters the relative CH reactivity from that ...[+]
HAT trick: [MnIV(OH)2(H,MePytacn)]2+ (A) and [MnIV(O)(OH)(H,MePytacn)]+ (B) differ in their reactions with CH bonds: compound A engages in typical single-step hydrogen atom transfer (HAT) reactions, whereas B first forms a substrate–B encounter complex (C; see scheme). This equilibrium alters the relative CH reactivity from that expected from CH bond dissociation energies[-]
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