Results 1 to 10 of about 42,472 (344)

Hydrogen Atom Abstraction and Reduction Study of 21-Thiaporphyrin and 21,23-Dithiaporphyrin [PDF]

Molecules
The metal-free porphyrins protonation has gained interest over five decades because its structure modification and hardly monoacid intermediate isolation.
Xiao-Rui Ren, Kang Xing, Teng Liu, Ronghui Cao, Li-Long Dang, Feng Bai, Peng-Cheng Duan   +6 more
doaj   +4 more sources

DFT Investigation of Hydrogen Atom Abstraction from NHC-Boranes by Methyl, Ethyl and Cyanomethyl Radicals—Composition and Correlation Analysis of Kinetic Barriers [PDF]

Molecules, 2020
Understanding the hydrogen atom abstraction (HAA) reactions of N-heterocyclic carbene (NHC)-boranes is essential for extending the practical applications of boron chemistry.
Hong-jie Qu, Lang Yuan, Cai-xin Jia, Hai-tao Yu, Hui Xu   +4 more
doaj   +4 more sources

Molecular Design of H₂ Storage/Release Devices: A Direct Ab Initio MD Study [PDF]

Nanomaterials
To advance a hydrogen-based energy society, the development of efficient hydrogen storage materials is essential. In particular, such materials are expected to be lightweight and chemically stable.
Hiroto Tachikawa
doaj   +2 more sources

Hydrogen atom abstraction by a high spin [Fe^III=S] complex. [PDF]

Chem, 2023
Iron sulfur clusters are critical to a plethora of biological processes; however, little is known about the elementary unit of these clusters, namely the [Fe=S]n+ fragment. Here, we report the synthesis and characterization of a terminal iron sulfido complex.
Valdez-Moreira JA, Wannipurage DC, Pink M, Carta V, Moënne-Loccoz P, Telser J, Smith JM.   +6 more
europepmc   +3 more sources

Visible Light-Mediated Dearomative Hydrogen Atom Abstraction/ Cyclization Cascade of Indoles. [PDF]

Angew Chem Int Ed Engl, 2022
Xiong Y, Großkopf J, Jandl C, Bach T.
europepmc   +3 more sources

Beyond the classical thermodynamic contributions to hydrogen atom abstraction reactivity. [PDF]

Proc Natl Acad Sci U S A, 2018
Significance Hydrogen atom abstraction reactivity is a key property of many important biological and synthetic compounds that depends on their proton-coupled reduction potentials. These potentials quantify the ability of species to acquire an electron and proton pair.
Bím D, Maldonado-Domínguez M, Rulíšek L, Srnec M.   +3 more
europepmc   +5 more sources

New Catalytic Radical Process Involving 1,4-Hydrogen Atom Abstraction: Asymmetric Construction of Cyclobutanones. [PDF]

J Am Chem Soc, 2021
Xie J, Xu P, Zhu Y, Wang J, Lee WC, Zhang XP.   +5 more
europepmc   +3 more sources

Mechanisms for Hydrogen-Atom Abstraction by Mononuclear Copper(III) Cores: Hydrogen-Atom Transfer or Concerted Proton-Coupled Electron Transfer? [PDF]

J Am Chem Soc, 2019
Mandal M, Elwell CE, Bouchey CJ, Zerk TJ, Tolman WB, Cramer CJ.   +5 more
europepmc   +3 more sources

Selective Hydrogen Atom Abstraction through Induced Bond Polarization: Direct α-Arylation of Alcohols through Photoredox, HAT, and Nickel Catalysis. [PDF]

Angew Chem Int Ed Engl, 2018
Twilton J, Christensen M, DiRocco DA, Ruck RT, Davies IW, MacMillan DWC.   +5 more
europepmc   +3 more sources

Selective Hydrogen Atom Abstraction by Hydrogen Atoms in Photolysis and Radiolysis of Alkane Mixtures at 77 K [PDF]

Bulletin of the Chemical Society of Japan, 1976
Abstract A selective hydrogen atom abstraction reaction by H atoms, which are produced at 77K by radiolysis of alkane or photolysis of hydrogen halides, has been found in isobutane, 2,2,3,3-tetramethylbutane (TMB), and cyclopropane matrices as well as in the neopentane matrix. The selective hydrogen atom abstraction reaction is caused by
Tetsuo Miyazaki, Selma M. L. Guedes, Kazuhisa Kinugawa, Masao Eguchi   +3 more
openaire   +3 more sources