Kinetic Isotope Effects as a Mechanistic Tool for the Elucidation of the Rate‐Determining Step(s) in the Transition‐Metal‐Ion‐Mediated Activation of CH/CC Bonds. Ethylene Loss from Metastable 4‐Octyne/M ⊕  Complexes in the Gas Phase | Zendy

Schulze Christian | Zendy; Schwarz Helmut | Zendy

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Kinetic Isotope Effects as a Mechanistic Tool for the Elucidation of the Rate‐Determining Step(s) in the Transition‐Metal‐Ion‐Mediated Activation of CH/CC Bonds. Ethylene Loss from Metastable 4‐Octyne/M ⊕ Complexes in the Gas Phase

Author(s) -

Schulze Christian,

Schwarz Helmut

Publication year - 1990

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199005091

Subject(s) - ethylene , metastability , chemistry , kinetic isotope effect , transition metal , olefin fiber , metal , isotope , two step , kinetic energy , ion , photochemistry , organic chemistry , catalysis , combinatorial chemistry , atomic physics , deuterium , physics , quantum mechanics

The nature of the transition‐metal ion M ⊕ determines which of the steps (CH activation or loss of olefin) will be rate‐determining in the regiospecific formation of ethylene from 4‐octyne: with M ⊕ = Cr ⊕ or Cu ⊕ it is CH activation, but with M ⊕ = Fe ⊕ it is the loss of ethylene. Both steps are subject to isotope effects, with M ⊕ = Cr ⊕ or Ni ⊕ .

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