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Literature DB >> 18266366

Thermodynamics of hydrogen atom transfer to a high-valent iron imido complex.

Ismael Nieto¹, Feizhi Ding, Ranko P Bontchev, Haobin Wang, Jeremy M Smith.

Abstract

Thermodynamic investigations relevant to hydrogen atom transfer by the high-valent iron imido complex [LMesFe[triple bond]NAd]OTf have been undertaken. The complex is found to be weakly oxidizing by cyclic voltammetry (E1/2 = -0.98 V vs Cp2Fe+/Cp2Fe in MeCN). A combination of experimental and computational studies has been used to determine the acidity of LMesFe-N(H)Ad+ (pKa = 37 in MeCN), allowing the N-H BDFE (88(5) kcal/mol) to be calculated from a thermodynamic cycle. Consistent with this value, [LMesFe[triple bond]NAd]OTf reacts with 9,10-dihydroanthracene (C-H BDE = 78(1) kcal/mol) to form anthracene.

Entities: Chemical Gene

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Year: 2008 PMID： 18266366 DOI： 10.1021/ja0776834

Source DB: PubMed Journal: J Am Chem Soc ISSN： 0002-7863 Impact factor: 15.419

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Cited

31 in total

1. High-Spin Iron Imido Complexes Competent for C-H Bond Amination.

Authors: Matthew J T Wilding; Diana A Iovan; Theodore A Betley
Journal: J Am Chem Soc Date: 2017-08-18 Impact factor: 15.419

2. Access to well-defined ruthenium(I) and osmium(I) metalloradicals.

Authors: Ayumi Takaoka; Laura C H Gerber; Jonas C Peters
Journal: Angew Chem Int Ed Engl Date: 2010-06-01 Impact factor: 15.336

3. Characterization of Iron-Imido Species Relevant for N-Group Transfer Chemistry.

Authors: Diana A Iovan; Theodore A Betley
Journal: J Am Chem Soc Date: 2016-02-04 Impact factor: 15.419

4. Rapid C-H bond activation by a monocopper(III)-hydroxide complex.

Authors: Patrick J Donoghue; Jacqui Tehranchi; Christopher J Cramer; Ritimukta Sarangi; Edward I Solomon; William B Tolman
Journal: J Am Chem Soc Date: 2011-10-17 Impact factor: 15.419

5. Direct Manipulation of Metal Imido Geometry: Key Principles to Enhance C-H Amination Efficacy.

Authors: Yunjung Baek; Elisabeth T Hennessy; Theodore A Betley
Journal: J Am Chem Soc Date: 2019-10-10 Impact factor: 15.419

6. Facile concerted proton-electron transfers in a ruthenium terpyridine-4'-carboxylate complex with a long distance between the redox and basic sites.

Authors: Virginia W Manner; Antonio G Dipasquale; James M Mayer
Journal: J Am Chem Soc Date: 2008-05-14 Impact factor: 15.419

Thermodynamics of hydrogen atom transfer to a high-valent iron imido complex.

1. High-Spin Iron Imido Complexes Competent for C-H Bond Amination.

2. Access to well-defined ruthenium(I) and osmium(I) metalloradicals.

3. Characterization of Iron-Imido Species Relevant for N-Group Transfer Chemistry.

4. Rapid C-H bond activation by a monocopper(III)-hydroxide complex.

5. Direct Manipulation of Metal Imido Geometry: Key Principles to Enhance C-H Amination Efficacy.

6. Facile concerted proton-electron transfers in a ruthenium terpyridine-4'-carboxylate complex with a long distance between the redox and basic sites.

7. M≡E and M=E Complexes of Iron and Cobalt that Emphasize Three-fold Symmetry (E = O, N, NR).

8. Three-coordinate terminal imidoiron(III) complexes: structure, spectroscopy, and mechanism of formation.

9. Unprecedented Five-Coordinate Iron(IV) Imides Generate Divergent Spin States Based on the Imide R-Groups.

10. A Mononuclear Nonheme Iron(V)-Imido Complex.